The Knee RSS feed. https://www.thekneejournal.com/issues?journalCode=thekne&publicationCode=thekne&rss=yes Elsevier Inc. en © 2026 Published by Elsevier Inc. All rights reserved. The Knee 0968-0160 2026-06-10-07:00 © 2026 Published by Elsevier Inc. All rights reserved. permissionshelpdesk@elsevier.com https://www.thekneejournal.com/article/S0968-0160(26)00171-7/fulltext?rss=yes We thank Yiğitbay for his thoughtful and constructive comments on our article [1]. We appreciate his interest in our study and his valuable insights, which contribute meaningfully to the ongoing discussion on the role of large language models (LLMs) in patient education after total knee arthroplasty (TKA). Response to the Letter to the Editor regarding “Comparative evaluation of large language models for patient education after total knee arthroplasty” Murat Yuncu, Ozkan Kose 10.1016/j.knee.2026.104491 The Knee (2026) 2026-05-15 The Knee 2026-05-15 https://www.thekneejournal.com/article/S0968-0160(26)00169-9/fulltext?rss=yes We read with great interest the article by Jalahi et al [1] evaluating the therapeutic efficacy of kappa-carrageenan (κ-CG) combined with human dental pulp stem cells (HDPSCs) and HDPSC-derived exosomes in a rat model of knee osteoarthritis (OA). The study addresses a pressing need for novel regenerative therapies for OA, a debilitating degenerative joint disease with limited long-term treatment options. While the findings of improved radiological and histopathological outcomes in the combined treatment group (ECD) are promising, several critical scientific questions and limitations warrant further discussion to strengthen the validity and translational potential of the work. Letter to the editor regarding “Evaluation of the healing effect of kappa-carrageenan combined with dental pulp stem cell-derived exosomes on induced knee osteoarthritis in male rats” Gang Chen 10.1016/j.knee.2026.104489 The Knee (2026) 2026-05-14 The Knee 2026-05-14 https://www.thekneejournal.com/article/S0968-0160(26)00167-5/fulltext?rss=yes Dear editor, Letter to the editor regarding “Comparative evaluation of large language models for patient education after total knee arthroplasty” Ahmet Yiğitbay 10.1016/j.knee.2026.104487 The Knee (2026) 2026-05-13 The Knee 2026-05-13 https://www.thekneejournal.com/article/S0968-0160(26)00133-X/fulltext?rss=yes The “Letter to the Editor” regarding the JETKNEE study (mannitol-combined hyaluronan) raises several questions and perspectives concerning the study's methodology, structural findings, and safety reporting. Response to the “Letter to the Editor” regarding “Efficacy and safety of a single intra-articular injection of mannitol-combined hyaluronan in patients with knee osteoarthritis – A double-blinded randomized clinical study” Shu-Fen Sun 10.1016/j.knee.2026.104454 The Knee (2026) 2026-04-11 The Knee 2026-04-11 https://www.thekneejournal.com/article/S0968-0160(26)00132-8/fulltext?rss=yes With a skeletally immature population more involved in contact sports and the additional pressure on healthcare provision of an ageing population, knee surgeons are unlikely to be replaced by robots and artificial intelligence in the immediate future. Harnessing AI and technology to predict at risk groups and select the right treatment for the right patient still requires the human touch to ensure generative AI hallucinations are identified and prevented from creating plausible solutions from fabricated data. The circle of life Caroline Hing, Oday Al-Dadah 10.1016/j.knee.2026.104453 The Knee 60, (2026) 2026-04-04 The Knee 2026-04-04 60 S0968-0160(26)X2001-4 Editorial https://www.thekneejournal.com/article/S0968-0160(26)00117-1/fulltext?rss=yes We read with great interest the article titled “Efficacy and safety of a single intra-articular injection of mannitol-combined hyaluronan in patients with knee osteoarthritis – A double-blinded randomized clinical study” [1] published in your journal, and found it highly insightful. This interesting and novel study evaluated the experimental product JETKNEE in treating patients with unilateral knee osteoarthritis, providing valuable empirical evidence for the management of Kellgren–Lawrence grade 2–3 knee osteoarthritis. Letter to the editor regarding “Efficacy and safety of a single intra-articular injection of mannitol-combined hyaluronan in patients with knee osteoarthritis – A double-blinded randomized clinical study” Zhiyin Kong, Wenxi Du 10.1016/j.knee.2026.104438 The Knee (2026) 2026-04-04 The Knee 2026-04-04 https://www.thekneejournal.com/article/S0968-0160(26)00099-2/fulltext?rss=yes Reliable quantification of dynamic anterior tibia translation and internal tibia rotation is essential for advancing anterior cruciate ligament research beyond static clinical assessments. While optoelectronic motion capture combined with functional calibration techniques has been proposed as an accessible approach, evidence regarding its robustness across examiners, days, and task demands remains limited. This commentary aims to critically appraise the methodological and translational implications of recently reported reliability estimates for dynamic tibiofemoral measurements during walking and jump-landing tasks. Comment on “Inter-examiner and inter-day reliability of dynamic tibiofemoral movements measurement using motion capture during walking and jumping tasks” Palavardhan Peddapalegani, Raghav Gupta, Priyanka Bansal, Pankaj Nainwal, Hariharan Srinivasan 10.1016/j.knee.2026.104421 The Knee 60, (2026) 2026-03-19 The Knee 2026-03-19 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00098-0/fulltext?rss=yes We thank the authors for their interest in our recent study titled “Inter-examiner and inter-day reliability of dynamic tibiofemoral movements measurement using motion capture during walking and jumping tasks”. Their thoughtful and constructive reflections highlighting important methodological considerations are greatly appreciated. In this response, we would like to address the points raised concerning the exclusive use of pointwise reliability measures, the homogeneous and healthy study population, the limited clinical contextualization of observed measurement errors, and the divergence between methodological and biological variability. Response to Comment on “Inter-examiner and inter-day reliability of dynamic tibiofemoral movements measurement using motion capture during walking and jumping tasks” Tom Vendrig, Michèle N.J. Keizer, Han Houdijk 10.1016/j.knee.2026.104420 The Knee 60, (2026) 2026-03-18 The Knee 2026-03-18 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00089-X/fulltext?rss=yes Although surgical navigation is widely used in anterior cruciate ligament reconstruction, there are few reports on medial patellofemoral ligament reconstruction (MPFLR). To solve the inaccuracy and inconvenience of drilling the femoral tunnel during MPFLR by frequently adjusting the C-arm to get a true lateral radiograph, a surgical navigation method to correct aberrant lateral radiographs is needed. A novel X-ray-based theory of surgical navigation for drilling the femoral tunnel during medial patellofemoral ligament reconstruction with a function to correct aberrant lateral radiographs Yuqiao Wei, Xiaoyun Sheng, Bin Geng, Chongxiao Sun, Fan Lu, Pengan Yan, Yayi Xia 10.1016/j.knee.2026.104411 The Knee 60, (2026) 2026-03-10 The Knee 2026-03-10 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00094-3/fulltext?rss=yes Meniscal tears are common knee injuries in middle-aged and elderly patients. Treatment options include arthroscopic meniscal repair and partial meniscectomy. This study compared the efficacy of these procedures on knee function and quality of life in patients aged 45–75 years. Outcomes of arthroscopic meniscal repair versus partial meniscectomy on knee function and quality of life in middle-aged and elderly patients: a retrospective control study of 80 cases Ruida Ji, Wu Cao, Ziwei Fei, Xiong Li, Hongyu Zhou 10.1016/j.knee.2026.104416 The Knee 60, (2026) 2026-03-07 The Knee 2026-03-07 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00095-5/fulltext?rss=yes Spin bias in the abstract of systematic reviews and meta-analyses (SRMAs) may impact readers’ perception of a treatment’s efficacy. This study assessed spin in the abstracts of SRMAs on robotic-assisted total knee arthroplasty (RA-TKA). Evaluating “spin” in the abstracts of systematic reviews and meta-analyses on robotic-assisted total knee arthroplasty Hassaan Abdel Khalik, James Abesteh, Ayomide Michael Ade-Conde, Linda I. Suleiman, Thomas J. Wood, Olufemi R. Ayeni 10.1016/j.knee.2026.104417 The Knee 60, (2026) 2026-03-06 The Knee 2026-03-06 60 S0968-0160(26)X2001-4 Review https://www.thekneejournal.com/article/S0968-0160(26)00092-X/fulltext?rss=yes Patient-specific instrumentation (PSI) has been introduced to improve the accuracy of varising knee osteotomy. This study aimed to evaluate the correction accuracy of a newly developed PSI system for varising knee osteotomy, including medial closing-wedge distal femoral osteotomy (MCWDFO), lateral opening-wedge distal femoral osteotomy (LOWDFO), and medial closing-wedge high tibial osteotomy (MCWHTO). A newly developed patient-specific instrumentation system achieves consistent alignment accuracy in varising knee osteotomy Takaaki Hiranaka, Peter D’Alessandro, Peter McEwen, Brett Fritsch, Jonathan Coward, Samuel Grasso, David Parker 10.1016/j.knee.2026.104414 The Knee 60, (2026) 2026-03-04 The Knee 2026-03-04 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00091-8/fulltext?rss=yes Tibial spine fractures are frequent injuries in the paediatric population and often require surgical fixation. Arthroscopic reduction and internal fixation (ARIF) and open reduction and internal fixation (ORIF) are the most widely adopted techniques. Functional outcomes, arthrofibrosis and residual laxity following arthroscopic and open reduction and internal fixation of tibial spine fractures: A systematic review and meta-analysis L. Farinelli, E. Tombolini, M. Cannelloni, M. Grassi, A. Gigante, R. D’Ambrosi, M.K. Patralekh, A. Meena 10.1016/j.knee.2026.104413 The Knee 60, (2026) 2026-03-03 The Knee 2026-03-03 60 S0968-0160(26)X2001-4 Review https://www.thekneejournal.com/article/S0968-0160(26)00090-6/fulltext?rss=yes Robotic-assisted total knee arthroplasty (TKA) has emerged as a promising approach to enhance precision in implant positioning and alignment, yet the optimal alignment strategy remains unresolved. This study aimed to systematically compare radiographic and patient-reported outcomes of kinematic (KA) and mechanical alignment (MA) in robot-assisted TKA. Functional, patient-reported, and radiographic outcomes of kinematic versus mechanical alignment in robotic total knee arthroplasty: A systematic review and meta-analysis Nikhil Garg, Nikhil Gupta, Kavin Khatri, Nitin Bansal, Kapil Bansal, Ashish Passi 10.1016/j.knee.2026.104412 The Knee 60, (2026) 2026-03-03 The Knee 2026-03-03 60 S0968-0160(26)X2001-4 Review https://www.thekneejournal.com/article/S0968-0160(26)00086-4/fulltext?rss=yes Extensive literature exists on the incidence and risk factors for manipulation under anesthesia (MUA) following total knee arthroplasty (TKA); however, data for MUA following unicompartmental knee arthroplasty (UKA) has not previously been reported. The purpose of this study is to describe the incidence and risk factors for MUA after UKA. Manipulation under anesthesia after unicompartmental knee arthroplasty: incidence and risk factors Kyle Rako, Jiwoo Park, Joseph Barbera, Anagha Kumar, Nicole Zubizarreta, Jashvant Poeran, Brett L. Hayden 10.1016/j.knee.2026.104408 The Knee 60, (2026) 2026-03-03 The Knee 2026-03-03 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00068-2/fulltext?rss=yes Anterior cruciate ligament (ACL) injuries are a significant source of morbidity and functional impairment in the paediatric population, with significant short- and long-term consequences [1]. These injuries, often caused by non-contact mechanisms such as pivoting or landing, are becoming more prevalent due to increased participation in organised sports and intensive training from a young age [1,2]. If not properly managed, paediatric ACL injuries can lead to recurrent instability, meniscal and cartilage damage, and early-onset osteoarthritis [2]. The Paediatric ACL National Audit (PANA) study: a multicentre review of UK practice and adherence to BOAST guidelines Benjamin D. Gompels, Alagu Subramanian, Ilias E. Epanomeritakis, Daniel Hide, Michael Daniel Collins, Thomas Molloy, Florence Bradshaw, Simone Castagno, Ignatius Liew, William Nabulyato, Chinmay Gupte, Nicolas Nicolaou, Stephen M. McDonnell, PANA Collaborative Group 10.1016/j.knee.2026.104390 The Knee 60, (2026) 2026-02-25 The Knee 2026-02-25 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00088-8/fulltext?rss=yes Huttman et al.’s editorial [1] summarized issues around patients’ seeking answers from artificial intelligence (AI-consultation) across knee disorders. AI-consultation, though with some weaknesses, could enhance shared decision-making and meaningful doctor–patient communication, as stated elsewhere in knee disorders [2] and other fields [3]. Although my comments arise from a broader medical setting, they relate directly to the human doctors’ role questioned by Huttman et al. I, to complement their work, provide concerns that AI-consultation may involve, which affect doctors’ behaviors and roles. Patients’ consultation for artificial intelligence: Untouched threats Shigeki Matsubara 10.1016/j.knee.2026.104410 The Knee 60, (2026) 2026-02-24 The Knee 2026-02-24 60 S0968-0160(26)X2001-4 Letter to the Editor https://www.thekneejournal.com/article/S0968-0160(26)00085-2/fulltext?rss=yes Evaluate the epidemiological profile, failure rate, and RTP in a highly homogeneous population of female soccer players under 18 years of age, all with Tegner activity level 9, who underwent ACL reconstruction using a bone–patellar tendon–bone (BTB) autograft. Rerupture rate after ACL reconstruction in adolescent female soccer players: a case series Pedro Álvarez Díaz, Damaris Barrueto Meza, Paula Velasco Alcalde, Alfred Ferré-Aniorte, David Barastegui Fernandez, Gilbert Steinbacher, Miguel Vázquez Gómez, Iker Ayesterán Calero, Esther Sala Barat, Ramón Cugat Bertomeu 10.1016/j.knee.2026.104407 The Knee 60, (2026) 2026-02-24 The Knee 2026-02-24 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00065-7/fulltext?rss=yes To identify which individual Oxford Knee Score (OKS) questions were most strongly associated with patient satisfaction one year after total knee arthroplasty (TKA) through an item-level analysis. Determinants of patient satisfaction one year after total knee arthroplasty: an item-level analysis of the Oxford Knee Score N.D. Clement, R. Al-Rubaye, I. Afzal, D.F. Kader 10.1016/j.knee.2026.104387 The Knee 60, (2026) 2026-02-21 The Knee 2026-02-21 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00084-0/fulltext?rss=yes Our study aimed to clarify the relationship between quadriceps fat pad impingement (QFPI) syndrome and lipid profiles as well as hematologic inflammatory markers. Quadriceps fat pad impingement: where patellofemoral maltracking meets the metabolic-inflammatory axis Tevfik Çatal, Alkan Bayrak 10.1016/j.knee.2026.104406 The Knee 60, (2026) 2026-02-20 The Knee 2026-02-20 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00083-9/fulltext?rss=yes The efficacy of anterolateral ligament (ALL) reconstruction in low-demand patients remains unclear. Therefore, we aimed to analyse the outcomes of ALL reconstruction with anterior cruciate ligament (ACL) reconstruction in low-demand patients. Anterior cruciate ligament reconstruction achieved noninferior patient reported outcome measures while residual rotational instability depends on anterolateral ligament femoral tunnel position: A matched analysis Junwoo Byun, Min Jung, Kwangho Chung, Hyun-Soo Moon, Se-Han Jung, Sung-Hwan Kim 10.1016/j.knee.2026.104405 The Knee 60, (2026) 2026-02-20 The Knee 2026-02-20 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00082-7/fulltext?rss=yes As our understanding of anterolateral rotatory instability (ALRI) has improved, there has been a shift towards a combined procedure of anterior cruciate ligament (ACL) reconstruction and lateral extra-articular procedure (LEAP) to reduce ALRI and decrease graft re-rupture rates. The purpose of the present prospective cohort study was to assess the outcomes, return to sport and complication rate with lateral extra-articular tenodesis (LET) in those with high grade or explosive pivot shift tests. Anterior cruciate ligament reconstruction using peroneus longus with lateral extra-articular tenodesis has excellent functional outcomes with a high return to sport rate: A prospective cohort study of 482 patients over 2 years Manit Arora, Sachin Tapasvi, Jay Shah 10.1016/j.knee.2026.104404 The Knee 60, (2026) 2026-02-20 The Knee 2026-02-20 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00070-0/fulltext?rss=yes The tibial tubercle–trochlear groove (TT-TG) distance is a key metric in evaluating patellofemoral (PF) pathology, with increased values linked to instability and cartilage degeneration. The sagittal TT-TG (sTT-TG), defined as the horizontal distance between the trochlear groove and tibial tubercle in the sagittal plane, may offer insights into PF joint loading. However, its relationship to contact pressure and the influence of femoral rollback, patella height, and joint line height remain unclear. The role of sagittal tibial tubercle–trochlear groove distance in patellofemoral joint loading: a computational modeling analysis Sebastian Schmidt, Chilan Bou Ghosson Leite, Domenico Franco, Cale A. Jacobs, Christian Lattermann 10.1016/j.knee.2026.104392 The Knee 60, (2026) 2026-02-20 The Knee 2026-02-20 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00069-4/fulltext?rss=yes Previous studies have reported that lateral laxity in flexion following bicruciate-stabilized total knee arthroplasty (BCS TKA) can influence patient-reported outcomes. However, the optimal degree of lateral laxity in flexion remains unclear. This study aimed to determine the appropriate lateral laxity required to achieve good patient satisfaction following BCS TKA. Appropriate lateral joint laxity in flexion for optimizing patient satisfaction following bicruciate-stabilized total knee arthroplasty Kazushige Seki, Toshihiro Seki, Takashi Imagama, Yuta Matsuki, Takehiro Kaneoka, Kei Sasaki, Takashi Sakai 10.1016/j.knee.2026.104391 The Knee 60, (2026) 2026-02-20 The Knee 2026-02-20 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00072-4/fulltext?rss=yes Medial stability has been considered a key determinant of favorable outcomes after total knee arthroplasty (TKA). This study aimed to investigate the association between postoperative medial joint stability and clinical outcomes and to identify factors influencing medial joint stability. Impact of implant design and surgical technique on medial stability and outcomes after cruciate-sacrificing total knee arthroplasty Hiroshi Inui, Haruhiko Nakamura, Ryota Takei, Masaki Uchida, Kei Sato, Tetsu Yamashita, Risa Matsumoto 10.1016/j.knee.2026.104394 The Knee 60, (2026) 2026-02-18 The Knee 2026-02-18 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00071-2/fulltext?rss=yes Shock absorption is often mentioned as one of the functions of the meniscus, but consensus is lacking. The first objective of this study was to adopt adequate test methods for evaluating shock-absorbing and damping characteristics of the human knee joint and, more specifically, the meniscus. Secondly, the shock-absorbing effect of a novel medial meniscus prosthesis was investigated. The intact meniscus and an artificial meniscus prosthesis both act as a shock absorber in the knee joint B.S. van Minnen, W. Hilgenga, A.J. van der Veen, S.A.W. van de Groes, N. Verdonschot, T.G. van Tienen 10.1016/j.knee.2026.104393 The Knee 60, (2026) 2026-02-18 The Knee 2026-02-18 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00066-9/fulltext?rss=yes The purpose of this study was to prompt GPT-4 to analyze qualitative data used in a published scientific article where qualitative content analysis was performed by human researchers, and to qualitatively compare results from the published article with the results generated by GPT-4. Human versus GPT-4 in qualitative analysis: A comparative reanalysis of patient interview data following anterior cruciate ligament injury rehabilitation Ramana Piussi, Justin F. Schneiderman, Yinan Yu, Kristian Samuelsson, Eric Hamrin Senorski 10.1016/j.knee.2026.104388 The Knee 60, (2026) 2026-02-18 The Knee 2026-02-18 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00022-0/fulltext?rss=yes Gushu pills (GSW), a traditional Chinese medicine formulation, have demonstrated clinical efficacy in treating bone metabolic disorders, including osteoarthritis (OA). However, the underlying molecular mechanisms remain poorly understood. This study aimed to investigate the therapeutic effects of GSW on IL-1β-induced osteoblast injury and OA in rats, focusing on the potential involvement of the OPG/RANKL/RANK signaling pathway. Gushu pills ameliorate interleukin-1β-induced osteoblast injury and osteoarthritis in rats via regulation of the OPG/RANKL/RANK pathway Dun Liu, Zhongyu Peng, Weijie Yu, Jianqing Liao, Jiajia Wei, Jianhui Yang, Yuan Long, Tao Chen, Junbo Kong 10.1016/j.knee.2026.104344 The Knee 60, (2026) 2026-02-18 The Knee 2026-02-18 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00063-3/fulltext?rss=yes Isolated posterolateral corner (PLC) injuries classified as grade I/II or type B (Fanelli–Larson) may coexist with a hypermobile lateral meniscus (LM). Although lesions are often managed conservatively, residual rotational instability from LM hypermobility can persist, warranting surgery in patients. We evaluated outcomes of open repair for isolated PLC injury with hypermobile LM at a minimum 2-year follow up. Open surgery for isolated posterolateral corner injury with hypermobile lateral meniscus was successful at a minimum follow up of 2 years K. Goto, V.B. Duthon, C. Mouton, P.M. Tscholl, R. Seil, J. Ménétrey 10.1016/j.knee.2026.104385 The Knee 60, (2026) 2026-02-16 The Knee 2026-02-16 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00064-5/fulltext?rss=yes Patients with higher body mass index (BMI) are becoming the main cohort undergoing total knee arthroplasty (TKA). This demographic may be at greater risk of aseptic tibial loosening than patients in the normal BMI range, necessitating interventions to improve outcomes. Stem extensions in tibial components have emerged as a potential solution, however no consensus or protocol currently exist to guide clinicians. A systematic review of tibial stem extensions in patients with obesity undergoing total knee arthroplasty Themistoklis V. Tragaris, Javed M. Ali, Mark J. Berney, May S. Cleary, Fiachra E. Rowan 10.1016/j.knee.2026.104386 The Knee 60, (2026) 2026-02-14 The Knee 2026-02-14 60 S0968-0160(26)X2001-4 Review https://www.thekneejournal.com/article/S0968-0160(26)00046-3/fulltext?rss=yes – First-time two-stage revision arthroplasty remains an effective surgical option to treat PJI.– Reinfection can occur following apparent successful eradication of infection following surgery. The re-infection rate over time following two-stage revision knee arthroplasty for peri-prosthetic joint infection: A retrospective review of 130 knees at minimum 4-year follow-up Cameron Brown, Duncan Renton, Bruce McLintock, James Doonan, Rahul Battyhcharya, Michael Murphy, Bryn G. Jones, Mark J.G. Blyth 10.1016/j.knee.2026.104368 The Knee 60, (2026) 2026-02-13 The Knee 2026-02-13 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00040-2/fulltext?rss=yes This study aimed to compare the effects of forefoot strike (FFS) and rearfoot strike (RFS) running on patellar cartilage stress, strain, contact area, and patellar movement using finite element analysis. Finite element analysis of the impact of running foot strike pattern on patellar cartilage stress Shiqi Yu, Yuwen Shangguan, Peng Yuan, Yilin Xu, Xianfeng Yang, Lijun Qin, Yawei Song 10.1016/j.knee.2026.104362 The Knee 60, (2026) 2026-02-12 The Knee 2026-02-12 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00044-X/fulltext?rss=yes Persistent anterior knee pain remains one of the most frequent causes of postoperative dissatisfaction after anterior cruciate ligament reconstruction (ACLR). Despite extensive literature on potential etiologic factors, no validated clinical tool currently exists to predict which patients are at greatest risk. Development and internal validation of a clinical score to predict persistent anterior knee pain after anterior cruciate ligament reconstruction Horacio Rivarola, Camilo Helito, Cristian Collazo, Marcos Palanconi, Marcos Meninato, Edgar Barros, Gonzalo Arteaga, Francisco Endara Urresta, Carlos Peñaherrera-Carillo, Alejandro Barros Castro 10.1016/j.knee.2026.104366 The Knee 60, (2026) 2026-02-10 The Knee 2026-02-10 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00042-6/fulltext?rss=yes ACL reinjury after reconstruction remains a major challenge, affecting long-term function, return to sport and healthcare costs. Although risk factors are known, accurate patient-specific prediction is limited. This scoping review synthesises evidence on supervised AI/ML models for predicting ACL reinjury or related adverse outcomes after primary ACL reconstruction, focusing on outcome definitions, validation and clinical applicability. Reinjury risk after ACL reconstruction: a scoping review of artificial intelligence-based prediction models Ayla Ahmed, Jaison Patel, Kesavan Richard Sri-Ram, Anand Patel, Anusha Kumar 10.1016/j.knee.2026.104364 The Knee 60, (2026) 2026-02-09 The Knee 2026-02-09 60 S0968-0160(26)X2001-4 Review https://www.thekneejournal.com/article/S0968-0160(26)00041-4/fulltext?rss=yes Persistent pain following total knee replacemnt (TKR) remains a challenging and often multifactorial issue. While common causes include infection, malalignment, or complex regional pain syndrome, less typical origins are easily overlooked. We report a unique case of chronic, disproportionate posterior thigh pain 1 year after TKR, caused by a complete proximal hamstring rupture leading to symptomatic sciatic nerve compression. To our knowledge, this is the first published case describing this specific postoperative complication and its successful surgical management. Sciatic nerve compression as a cause of severe chronic pain after total knee replacement: a case report Tim Philips, Willem Goethals, Francis De Neve, Pieter-Bastiaan De Keyzer, Jean F. Goubau, Michiel Cromheecke 10.1016/j.knee.2026.104363 The Knee 60, (2026) 2026-02-09 The Knee 2026-02-09 60 S0968-0160(26)X2001-4 Case Report https://www.thekneejournal.com/article/S0968-0160(26)00039-6/fulltext?rss=yes Existing knee osteoarthritis (KOA) severity classification methods typically rely on a combination of object detection algorithms and classification algorithms. However, this approach not only increases the computational burden and time costs but also reduces the efficiency of real-time diagnosis, which makes it difficult to meet the needs of practical applications. To address the performance limitations of KOA severity recognition models that operate without target detection algorithms, a deep transfer learning approach incorporating a novel activation function (AvRELU) was proposed. An improved activation function for the recognition of knee osteoarthritis severity Shuaishuai Chang, Hongliang Duan, QingE Wu 10.1016/j.knee.2026.104361 The Knee 60, (2026) 2026-02-07 The Knee 2026-02-07 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00036-0/fulltext?rss=yes Individuals with patellofemoral pain (PFP) commonly exhibit muscle weakness; however, the relationship between muscle strength deficits and other factors in this population remains unclear. The present systematic review aimed to identify factors correlated with muscle strength capacity in individuals with PFP. Which factors correlate with muscle strength capacity in people with patellofemoral pain? A systematic review with meta-analysis Guilherme S. Nunes, Maitê M. Pellenz, Júlia Bianchin Piussi, Bruna Wageck, Luis Ulisses Signori, Matheus Weide Solner, Anna Julia Meireles Dangui 10.1016/j.knee.2026.104358 The Knee 60, (2026) 2026-02-07 The Knee 2026-02-07 60 S0968-0160(26)X2001-4 Review https://www.thekneejournal.com/article/S0968-0160(26)00030-X/fulltext?rss=yes This study aimed to assess long-term survival and clinical outcomes of a posterior-stabilized total knee arthroplasty (TKA) using an Oxidized Zirconium (OxZr) femoral component after a minimum 10-year follow-up. A 10-year clinical and radiological outcome study of posterior-stabilized total knee arthroplasty with an oxidized zirconium femoral component Martin Tripon, Gaelle Maroteau, Thibault Cottebrune, Julien Dunet, Arthur Gras, Christophe Hulet 10.1016/j.knee.2026.104352 The Knee 60, (2026) 2026-02-06 The Knee 2026-02-06 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00038-4/fulltext?rss=yes The morphometric relationship between the femoral condyle and lateral meniscus has not been quantitatively characterized. Subtle alterations in femoral geometry may modify load distribution and predispose to meniscal re-tear, yet no reproducible MRI index exists to quantify this phenomenon. Femoral Condylar Consumption Index (FCCI): A geometric MRI predictor of lateral meniscal lesion and re-tear Horacio Rivarola, Camilo P. Helito, Pablo Ramos, Cristian Collazo, Marcos Palanconi, Marcos Meninato, Gonzalo Arteaga, Medardo Vargas, Francisco Endara Urresta, Carlos Peñaherrera-Carrillo, Alejandro Barros Castro 10.1016/j.knee.2026.104360 The Knee 60, (2026) 2026-02-04 The Knee 2026-02-04 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00001-3/fulltext?rss=yes Kinematic alignment (KA) total knee arthroplasty (TKA) seeks to restore native limb and knee alignments regardless of the degree of preoperative deformity and/or flexion contracture. Hence, the thickness of each femoral resection should match the femoral component after adjusting for cartilage wear and sawblade kerf. Previously, the thickness of worn articular cartilage has been set at 2 mm. If the proportion of patients with thickness ≥3 mm is relatively large however, then adjusting resection thickness to reflect cartilage thickness is a refinement of interest. One third of patients have articular cartilage thickness greater than three millimeters measured from femoral resections in kinematically aligned total knee arthroplasty Alexander J. Nedopil, Anand Singh Dhaliwal, Stephen M. Howell, Maury L. Hull 10.1016/j.knee.2026.104323 The Knee 60, (2026) 2026-02-04 The Knee 2026-02-04 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00035-9/fulltext?rss=yes Lower limb torsion affects the accuracy of knee coronal alignment measurements, which has an impact on the planning for surgical management of knee osteoarthritis (KOA). Current computed tomography (CT) scans for evaluating torsion are costly and cannot be performed for every case. This study aimed to investigate the relationship between distal and proximal tibio-fibular overlap ratio measured on long-limb radiographs with femoral and tibial torsion quantified by CT scan in an Asian population with KOA. Relationship between tibio-fibular overlap ratio and lower limb torsion in an Asian population Ashton Kai Shun Tan, Xinyu Tao, Shao Jin Teo, Don Thong Siang Koh, Hee Nee Pang, Hamid Rahmatullah Bin Abd Razak, Kong Hwee Lee, Junwei Soong 10.1016/j.knee.2026.104357 The Knee 60, (2026) 2026-02-03 The Knee 2026-02-03 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00032-3/fulltext?rss=yes To define the Patient-Acceptable Symptom State (PASS) in the Oxford Knee Score (OKS) following total knee arthroplasty (TKA) and identify independent preoperative factors associated with failure to achieve this threshold. Predictors associated with failing to achieve a patient-acceptable symptom state in the Oxford Knee Score following total knee arthroplasty Steve Robins, Eliott Martinson, Gillian Leitch, Nick D. Clement 10.1016/j.knee.2026.104354 The Knee 60, (2026) 2026-02-03 The Knee 2026-02-03 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00028-1/fulltext?rss=yes Total knee arthroplasty (TKA) and distal femoral replacement (DFR) can be used in limb-salvage after resection of bony tumors, but few reports have examined patient-reported outcome measurements (PROMs) with survival data in young patients. This study analyzed individuals who underwent TKA/DFR for neoplasm at a young (≤40) age, to report outcomes and survival experience. Total knee arthroplasty and distal femoral replacement in young patients with bony neoplasm: complications, survival and patient-reported outcomes Hannah J. Szapary, Helena Franco, Alexander Farid, Vineet Desai, John E. Ready, Antonia F. Chen, Jeffrey K. Lange 10.1016/j.knee.2026.104350 The Knee 60, (2026) 2026-02-03 The Knee 2026-02-03 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00026-8/fulltext?rss=yes Meniscal tears are common intra-articular knee injuries that cause pain, swelling, and impaired mobility. Although magnetic resonance imaging (MRI) remains the diagnostic gold standard, interest is increasing in hematological and inflammatory indices as potential adjunctive biomarkers reflecting inflammatory activity. Relatıonshıp between meniscal tears and NLR, MPV, NPR, systemic immune-inflammatıon index Serhat Yildirim, Vatan Barisik, Dincer Atila, Muhammet Bozoglan, Murat Aksit 10.1016/j.knee.2026.104348 The Knee 60, (2026) 2026-02-03 The Knee 2026-02-03 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00029-3/fulltext?rss=yes Knee arthroplasty is an effective treatment option for managing advanced osteoarthritis and rheumatoid arthritis, even in elderly patients. However, super-elderly patients face increased risks of postoperative complications such as in-hospital mortality, deep vein thrombosis, pneumonia, cerebrovascular events, and cognitive dysfunction. This study aims to analyze postoperative complications in super-elderly patients (aged 85 years and older) and elderly patients (aged 70–84 years) who underwent total knee arthroplasty (TKA) or unicompartmental knee arthroplasty (UKA) using Japan’s nationwide DPC database. Elevated risks of pneumonia, cognitive dysfunction, and cerebrovascular disorder in super-elderly knee arthroplasty patients: insights from a nationwide Japanese database Yu Mori, Kunio Tarasawa, Hidetatsu Tanaka, Masayuki Kamimura, Kento Harada, Naoko Mori, Kiyohide Fushimi, Toshimi Aizawa, Kenji Fujimori 10.1016/j.knee.2026.104351 The Knee 60, (2026) 2026-02-02 The Knee 2026-02-02 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00031-1/fulltext?rss=yes There are several orthotic treatment options for knee osteoarthritis. Ankle–foot orthosis (AFO) is a new approach in this regard; it is designed to reduce knee joint loading and consequently reduce the joint cartilage degeneration process. Previous studies considered the knee adduction moment as a surrogate marker for knee joint loading and knee joint contact force was not measured precisely. Moreover, the effect of this orthosis on joint kinematic and ground reaction force was not evaluated in previous studies. The effect of Agilium Freestep ankle–foot orthosis on the kinetic and kinematic parameters of gait in patients with knee osteoarthritis Mahsa Kavyani Boroujeni, Mohammad Taghi Karimi, Masoud Rafiaei, Hossein Akbari Aghdam 10.1016/j.knee.2026.104353 The Knee 60, (2026) 2026-01-31 The Knee 2026-01-31 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00004-9/fulltext?rss=yes The Knee Self-Efficacy Scale (K-SES) is widely used to assess patients’ confidence after knee injury, but no validated Persian version exists, limiting its use in Persian-speaking populations. This study aimed to translate, adapt, and evaluate the psychometric properties of the Persian-language versions of the K-SES (K-SES-Persian). Reliability and validity of the Persian knee Self-Efficacy Scale in patients with knee injuries: a cross-sectional validation study Bahram Sheikhi, Pouya Rabiei, Amir Letafatkar, Malihe Hadadnezhad, Hadi Akbari 10.1016/j.knee.2026.104326 The Knee 60, (2026) 2026-01-31 The Knee 2026-01-31 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00027-X/fulltext?rss=yes This study aims to evaluate the arthroscopic findings of patients undergoing surgery for congenital cruciate ligament deficiency. Specifically, it investigates the frequency and types of intra-articular meniscal and ligament abnormalities associated with this rare condition, which often presents with knee instability in conjunction with longitudinal limb deficiency. Arthroscopic findings and intra-articular anomalies in congenital cruciate ligament deficiency Sheba Z. Basheer, Tariq A. Kwaees, Paul Haslam, Fazal M. Ali, Nicolas Nicolaou 10.1016/j.knee.2026.104349 The Knee 60, (2026) 2026-01-29 The Knee 2026-01-29 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00025-6/fulltext?rss=yes All-cement spacers or metal-on-polyethylene (MoP) spacers are types of articulating spacers used in two-stage treatment of total knee arthroplasty (TKA) periprosthetic joint infection (PJI). While MoP spacers have improved durability and versatility, there is concern that use of primary arthroplasty components as a temporary spacer is not cost-effective. We investigated the cost of MoP versus molded all-cement articulating spacers for the treatment of TKA PJI. Cemented metal-on-polyethylene spacers have similar cost profiles with lower complications rates compared to molded all-cement articulating spacers for treatment of knee periprosthetic joint infection Angel X Xiao, Ramesh B Ghanta, Alejandro S. Cazzulino, Kelechi Nwachuku, Erdan Kayupov, Erik N. Hansen 10.1016/j.knee.2026.104347 The Knee 60, (2026) 2026-01-29 The Knee 2026-01-29 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00024-4/fulltext?rss=yes Liposomal bupivacaine (LB), a sustained-release formulation, is designed to prolong regional analgesia, and has been investigated as a solution for perioperative pain management. This meta-analysis of randomized controlled trials (RCTs) assessed the benefits of LB in patients undergoing knee arthroplasty. Liposomal bupivacaine reduced postoperative analgesia in patients undergoing knee arthroplasty Jad Mansour, Mohammad Daher, Matthew Nakouzi, Jonathan Liu, Michel Estephan, Amer Sebaaly, Alan H. Daniels, Mouhanad M. El-Othmani 10.1016/j.knee.2026.104346 The Knee 60, (2026) 2026-01-29 The Knee 2026-01-29 60 S0968-0160(26)X2001-4 Review https://www.thekneejournal.com/article/S0968-0160(26)00023-2/fulltext?rss=yes A meta-analysis of randomised trials was conducted to compare clinical and functional outcomes between the standard anteromedial or midline skin incision and unconventional anterolateral incision for total knee arthroplasty (TKA). Anterolateral skin incision for total knee arthroplasty is associated with lower prevalence of postoperative hypoesthesia at 1-year: a meta-analysis of randomised trials Omar E.S. Mostafa, Eden E.S. Mostafa, Tahir Khaleeq, Osama Aweid, Loiy Alkhatib, Amit Meena, Bolarinwa Akinola, Usman Ahmed, Shahbaz S. Malik 10.1016/j.knee.2026.104345 The Knee 60, (2026) 2026-01-23 The Knee 2026-01-23 60 S0968-0160(26)X2001-4 Review https://www.thekneejournal.com/article/S0968-0160(26)00005-0/fulltext?rss=yes Knee osteoarthritis (KOA) is one of the most prevalent degenerative joint diseases and a significant cause of disability. Total Knee Arthroplasty (TKA) is the standard treatment for advanced cases, but its success depends on accurate imaging, precise preoperative planning, and intraoperative execution. Imaging modalities such as radiographs, computed tomography (CT), magnetic resonance imaging (MRI), and ultrasound are widely used in TKA workflows. Still, they are often limited by anatomical variability, image artifacts, and poor soft tissue contrast. Artificial intelligence in knee osteoarthritis imaging and total knee arthroplasty: advances, challenges, and segmentation methods – A review Ahsan Humayun, Mustafain Rehman, Muhammad Zainulabideen 10.1016/j.knee.2026.104327 The Knee 60, (2026) 2026-01-21 The Knee 2026-01-21 60 S0968-0160(26)X2001-4 Review https://www.thekneejournal.com/article/S0968-0160(26)00003-7/fulltext?rss=yes Opioids are prescribed to alleviate pain after knee arthroplasty. However, prolonged postoperative opioid use may complicate recovery and potentially increase the risk of persistent use. This study explores opioid use following fast-track knee arthroplasty. Patient-reported opioid dependency and reasons for use 12 months following knee arthroplasty: a prospective observational study Mette J. Hansen, Mette Garval, Jeppe Lange, Charlotte Runge, Søren T. Skou, Nicolai K. Kristensen 10.1016/j.knee.2026.104325 The Knee 60, (2026) 2026-01-21 The Knee 2026-01-21 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00006-2/fulltext?rss=yes The burden of revision total knee arthroplasty (TKA) is expected to continue to grow with the increase in the number of primary procedures performed each year. The purpose of this study was to evaluate the early clinical outcomes of a novel revision knee system for use in revision and complex primary TKA. Midterm clinical outcomes and survivorship of a next generation revision knee system in complex primary and revision total knee arthroplasty Nicholas B. Frisch, Paul Edwards, Michael Bloomfield, Roberta E. Redfern, Nicholas Brown, John Dundon 10.1016/j.knee.2026.104328 The Knee 60, (2026) 2026-01-20 The Knee 2026-01-20 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(14)00151-3/fulltext?rss=yes The Publisher regrets that this article is an accidental duplication of an article that has already been published, http://dx.doi.org/10.1016/j.knee.2014.08.010. The duplicate article has therefore been withdrawn.The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy. Tibial component rotation: The inveterate problem Henry D. Clarke 10.1016/j.knee.2014.07.006 The Knee (2014) 2014-07-12 The Knee 2014-07-12 https://www.thekneejournal.com/article/S0968-0160(26)00141-9/fulltext?rss=yes Editorial Board 10.1016/S0968-0160(26)00141-9 The Knee 60, (2026) 2026-06 The Knee 2026-06 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00081-5/fulltext?rss=yes Abstract Bone plug vs all soft tissue for meniscal allograft transplant: a systematic review and meta-analysis of failure rates and extrusion B. Rudran, O. Dunseath, A. Shearman, S. Khan, N. Colyvas 10.1016/j.knee.2026.104403 The Knee 60, (2026) 2026-06 The Knee 2026-06 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00080-3/fulltext?rss=yes Abstract Multidisciplinary collaborative acute knee clinic model leads to faster imaging, diagnoses and treatment decisions Jack Williams, Natasha Sinha, Isabella Hindley, Kit-Yue Lam, James Wills, Clare Richards, Robert Lawton, Mark Webb 10.1016/j.knee.2026.104402 The Knee 60, (2026) 2026-06 The Knee 2026-06 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00079-7/fulltext?rss=yes Abstract Impact of concurrent meniscus tears and articular cartilage lesions on the clinical outcome of anterior cruciate ligament reconstruction Mustafa Al-Zubaidy, Michelle Rogger, Oday Al-Dadah 10.1016/j.knee.2026.104401 The Knee 60, (2026) 2026-06 The Knee 2026-06 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00078-5/fulltext?rss=yes Abstract Outcomes of lateral meniscal oblique radial tear (LMORT) repair: a review of clinical and patient-reported measures M.J. Choudri, R. Prakash, P. Davies, O. Aweid, A. Meena, D. de SA, P. D’Alessandro, S. Malik 10.1016/j.knee.2026.104400 The Knee 60, (2026) 2026-06 The Knee 2026-06 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00077-3/fulltext?rss=yes Abstract Radiological assessment of patellar instability: comparative analysis of patients with and without instability and the impact of stabilisation surgery Mustafa Al-Zubaidy, Kira Faircloth, Oday Al-Dadah 10.1016/j.knee.2026.104399 The Knee 60, (2026) 2026-06 The Knee 2026-06 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00076-1/fulltext?rss=yes Abstract Sex differences in femoral intercondylar notch morphology and ACL injury risk: a systematic review Ernest Chew, Joachim Ho, Amit Chawla, Preemal Patel, Sanjay Anand 10.1016/j.knee.2026.104398 The Knee 60, (2026) 2026-06 The Knee 2026-06 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00075-X/fulltext?rss=yes Abstract Clinical outcome following patellar stabilisation surgery and its correlation with radiological parameters Mustafa Al-Zubaidy, Kira Faircloth, Oday Al-Dadah 10.1016/j.knee.2026.104397 The Knee 60, (2026) 2026-06 The Knee 2026-06 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00074-8/fulltext?rss=yes Abstract Patient Specific Instrumentation improves accuracy in High Tibial Osteotomy: A systematic review and meta-analysis B. Rudran, O. Dunseath, A. Shearman, N. Colyvas, S. Sherman, A.J. Price 10.1016/j.knee.2026.104396 The Knee 60, (2026) 2026-06 The Knee 2026-06 60 S0968-0160(26)X2001-4 https://www.thekneejournal.com/article/S0968-0160(26)00073-6/fulltext?rss=yes Abstract Impact of graft choice on short-term patient outcomes following anterior cruciate ligament reconstruction Mustafa Al-Zubaidy, Michelle Rogger, Oday Al-Dadah 10.1016/j.knee.2026.104395 The Knee 60, (2026) 2026-06 The Knee 2026-06 60 S0968-0160(26)X2001-4