SICOT-JPub Date : 2026-01-01Epub Date: 2026-04-20DOI: 10.1051/sicotj/2026004
Daniel Moya, Jorge Rojas Liévano, Diego Gómez, Federico Alfano, Christos Koukos, Daniel Veloz Serrano, Ricardo Vera
{"title":"Anatomic extension-based description for rotator cuff calcifications: retrospective analysis of 100 consecutive cases.","authors":"Daniel Moya, Jorge Rojas Liévano, Diego Gómez, Federico Alfano, Christos Koukos, Daniel Veloz Serrano, Ricardo Vera","doi":"10.1051/sicotj/2026004","DOIUrl":"10.1051/sicotj/2026004","url":null,"abstract":"<p><strong>Background: </strong>Rotator cuff calcific tendinopathy (RCCT) has traditionally been described as a localized enthesopathy. However, calcium deposits sometimes extend beyond the enthesis into adjacent soft tissues or humeral bone, resulting in atypical patterns not considered in existing classification systems. Failure to recognize these patterns can lead to diagnostic errors or the indication of unnecessary invasive diagnostic procedures.</p><p><strong>Methods: </strong>In order to describe atypical patterns and to assess their incidence, 100 consecutive shoulder cases with radiographically confirmed RCCT were retrospectively reviewed. Calcific deposits were categorized by tendon involvement, size, and morphology. Based on imaging findings, deposits were also classified according to their anatomic location and extension into: Type I (enthesis-confined), Type II (extension into soft tissue), and Type III (bone involvement). Associations between patient characteristics, calcification size, morphology, and location were analyzed.</p><p><strong>Results: </strong>According to the proposed classification, 67% of cases were Type I, 14% showed soft tissue extension (Type II), and 19% involved bone (Type III). Type III group showed a significantly higher proportion of females (83%) compared to the entire cohort (54%) (p < 0.001). Larger deposits (>15 mm) were significantly associated with bone involvement (p < 0.01).</p><p><strong>Conclusion: </strong>Extension of calcium deposits beyond the rotator cuff enthesis was a frequent finding in this series. Incorporating an anatomic extension-based classification may enhance diagnostic precision, possibly avoiding invasive differential diagnostic procedures.</p><p><strong>Level of evidence: </strong>IV.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"17"},"PeriodicalIF":2.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13094347/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147724282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SICOT-JPub Date : 2026-01-01Epub Date: 2026-04-29DOI: 10.1051/sicotj/2026015
Wessam Fakhery Ebied, Hesham Ossama Soubih, Yahia Haroun, Karim Atef Salem, Amr Amal Amin, Ahmed Sayed Kotb
{"title":"Lateral versus supine positioning for proximal femoral nailing of unstable intertrochanteric fractures in geriatric patients: A prospective randomized comparative study.","authors":"Wessam Fakhery Ebied, Hesham Ossama Soubih, Yahia Haroun, Karim Atef Salem, Amr Amal Amin, Ahmed Sayed Kotb","doi":"10.1051/sicotj/2026015","DOIUrl":"10.1051/sicotj/2026015","url":null,"abstract":"<p><strong>Background: </strong>Patient positioning for proximal femoral nailing (PFN) in unstable intertrochanteric fractures remains controversial and may influence operative efficiency, radiation exposure, and reduction quality. This study compared lateral decubitus PFN without traction versus the conventional supine traction-table technique in geriatric patients.</p><p><strong>Methods: </strong>This prospective randomized comparative study enrolled patients aged >60 years with AO/OTA A2 unstable intertrochanteric fractures who were randomized to supine traction-table PFN (Group A) or lateral decubitus PFN on a radiolucent table (Group B). Primary outcomes were setup time, fluoroscopy (radiation) exposure, and operative time. Secondary outcomes included blood loss, need for open reduction, neck-shaft angle (NSA), tip-apex distance (TAD), and modified Baumgartner reduction quality.</p><p><strong>Results: </strong>Setup time was markedly shorter with lateral positioning (13.73 ± 2.26 vs 43.73 ± 6.19 min; P < 0.001), and radiation exposure was lower (60.53 ± 15.98 vs 68.48 ± 14.65 s; P = 0.023). Blood loss was higher in the lateral group (328.75 ± 84.65 vs 288.75 ± 48.68 mL; P = 0.011), and open reduction was more frequent (57.5% vs 17.5%; P < 0.001). Operative time was comparable (78.53 ± 15.13 vs 74.48 ± 8.56 min; P = 0.145). NSA (135.88 ± 5.94 vs 136.12 ± 6.27°; P = 0.864), TAD (23.58 ± 2.14 vs 23.15 ± 1.73 mm; P = 0.331), and reduction quality (good: 90% in both; P = 1.000) did not differ.</p><p><strong>Conclusions: </strong>Lateral decubitus PFN without traction improved setup efficiency and reduced radiation exposure while maintaining comparable radiographic outcomes, at the expense of more frequent open reduction and modestly higher blood loss.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"21"},"PeriodicalIF":2.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13127122/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147785091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pilot study: Effects of ovariectomy-induced estrogen deficiency on the biomechanical and structural properties of the intact anterior cruciate ligament in a porcine model.","authors":"Hibiki Kakiage, Tsuneari Takahashi, Yuji Kaneda, Wataru Kurashina, Katsushi Takeshita, Hirotaka Chikuda","doi":"10.1051/sicotj/2026017","DOIUrl":"10.1051/sicotj/2026017","url":null,"abstract":"<p><strong>Introduction: </strong>This pilot study investigated the effects of ovariectomy-induced estrogen deficiency on the biomechanical properties of intact anterior cruciate ligaments (ACLs) in a porcine model, a biological condition that may influence ligament integrity and injury susceptibility.</p><p><strong>Methods: </strong>A bilateral ovariectomy model was used to induce systemic estrogen deficiency. Fourteen two-month-old female pigs were included. Four pigs (8 knees) underwent bilateral ovariectomy (OV group). The left knees of 10 pigs that underwent laparotomy without ovariectomy for a separate study were analyzed as controls (C group). At 12 weeks, knee joints were examined macroscopically, followed by biomechanical testing consisting of cyclic anterior drawer loading and load-to-failure.</p><p><strong>Results: </strong>All ACLs were intact without arthrofibrosis or cartilage degeneration. During cyclic testing, anterior tibial translation was significantly lower in the OV group compared with controls (0.47 ± 0.14 mm vs. 0.82 ± 0.32 mm, P = 0.017). Failure mode differed between groups: all posterolateral bundles in controls avulsed at their insertions, whereas six of eight in the OV group ruptured in the midsubstance (P = 0.0070). No significant between-group differences were observed in yield load, maximum load, stiffness, or elongation at failure.</p><p><strong>Conclusion: </strong>Ovariectomy-induced estrogen deficiency altered ACL failure characteristics and reduced translation without affecting ultimate strength. These findings suggest that ovarian hormone deficiency compromises ligament quality, providing a potential mechanism for increased ACL injury risk in young female athletes. These findings should be interpreted as pilot, hypothesis-generating data.</p><p><strong>Level of evidence: </strong>Experimental laboratory study.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"22"},"PeriodicalIF":2.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13127120/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147785124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development and measurement of elbow and knee joints using an electro-goniometer in healthy subjects: A preliminary study.","authors":"Sasipa Buranapuntalug, Nuchrada Chaitrakul, Pollapat Liamtragoolpanich, Chusak Thanawattano, Chatchai Buekban, Kornanong Yuenyongchaiwat","doi":"10.1051/sicotj/2026016","DOIUrl":"10.1051/sicotj/2026016","url":null,"abstract":"<p><strong>Introduction: </strong>Range of Motion (ROM) assessment is a critical baseline metric for diagnosis, treatment monitoring, and rehabilitation goal setting. It significantly impacts patient well-being, aligning with Sustainable Development Goal 3 (SDG 3). However, the universal goniometer (UG), presents limitations regarding accuracy and practical efficiency in clinical settings. Therefore, this study aimed to determine the concurrent validity of an electronic goniometer named Goniwear compared to the UG for measuring elbow and knee angles.</p><p><strong>Methods: </strong>The validity of Goniwear involved 40 healthy volunteers stratified by age (20-39 and 40-59 years) and sex. Simultaneous active and passive ROM measurements were conducted three times using both UG and on flexion and extension of the elbow and knee joints. Data were analyzed using the intraclass correlation coefficients (ICC), which were calculated using a two-way random-effects model, and the Bland-Altman method was used to determine the limits of agreement (LoA) between the UG and Goniwear.</p><p><strong>Results: </strong>Reliability between the two instruments ranged from poor to excellent, depending on the joint and movement type. Elbow flexion and extension demonstrated consistently good to excellent reliability in both active and passive conditions (ICC = 0.84-0.91), with minimal bias and relatively narrow LoA. Knee flexion and extension showed poor to moderate reliability (ICC = 0.44-0.55), particularly for extension, accompanied by a wide LoA.</p><p><strong>Conclusion: </strong>Agreement between the UG and Goniwear varies across joints and movement conditions. While the instruments appear interchangeable for elbow movements, caution is warranted when interpreting knee ROM due to greater measurement variability.</p><p><strong>Discussion: </strong>The Goniwear demonstrates high validity for single-axis joints with fixed pivot points, suggesting strong potential for clinical application in specific contexts.</p><p><strong>Trial registration: </strong>The Thai Clinical Trials Registry is TCTR20251120001.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"23"},"PeriodicalIF":2.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13143208/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147844175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SICOT-JPub Date : 2026-01-01Epub Date: 2026-04-20DOI: 10.1051/sicotj/2026009
Angelo V Vasiliadis, Kalliopi Valsamidou, Alexandros Chortis, Dimitrios Chytas, George Noussios, George Paraskevas, Konstantinos Katakalos, Aikaterini Vassiou
{"title":"Development of a knee joint magnetic resonance imaging (MRI)-based model for finite element analysis (FEA) applications.","authors":"Angelo V Vasiliadis, Kalliopi Valsamidou, Alexandros Chortis, Dimitrios Chytas, George Noussios, George Paraskevas, Konstantinos Katakalos, Aikaterini Vassiou","doi":"10.1051/sicotj/2026009","DOIUrl":"10.1051/sicotj/2026009","url":null,"abstract":"<p><strong>Introduction: </strong>The knee is a biomechanically complex joint supported by multiple anatomical structures, making it vulnerable to multiple injuries. Finite element analysis is a valuable tool for studying joint biomechanics, particularly in pre-operative planning and injury evaluation. However, most models are based on computed tomography, which limits soft tissue visualization. Thus, a magnetic resonance imaging-based finite element model of the knee, incorporating bones, ligaments, tendons, cartilage, and menisci, was developed to improve realism and clinical relevance in biomechanical simulations.</p><p><strong>Materials and methods: </strong>Magnetic resonance imaging data were obtained from a healthy adult male using a 1.5T scanner and processed using RETOMO and Rhinoceros software for 3D reconstruction and modeling. Meshes were cleaned, optimized, and anatomically validated. All major knee structures were modeled, including the femur, tibia, fibula, patella, cruciate and collateral ligaments, patellofemoral ligaments, quadriceps and patellar tendons, menisci, and articular cartilage.</p><p><strong>Results: </strong>The resulting model reconstructed both hard and soft tissues of the knee joint with high anatomical fidelity, based on direct MRI segmentation and literature-supported anatomical definitions. The use of magnetic resonance imaging enabled high-resolution identification of soft tissues, while advanced mesh refinement preserved anatomical detail with optimized file management. The inclusion of structures like the anterolateral ligament and patellofemoral ligaments expands the model's clinical relevance in addressing a wider range of knee pathologies.</p><p><strong>Conclusion: </strong>This magnetic resonance imaging-based finite element analysis model provides a detailed and comprehensive, representation of the healthy human knee, including bones, cartilage, menisci, and tendons. While some ligament attachment points were derived from literature rather than MRI data, the model provides a foundation for future biomechanical studies, surgical planning and personalized treatment simulations.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"18"},"PeriodicalIF":2.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13094345/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147724260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"En bloc discectomy via anterior lumbar approach: a technical note.","authors":"Harmantya Mahadhipta, Amri Muhyi, Muhamad Abdul Harist Fadhlizain, Mitchel Mitchel, Karina Sylvana Gani, Erica Kholinne","doi":"10.1051/sicotj/2026002","DOIUrl":"10.1051/sicotj/2026002","url":null,"abstract":"<p><strong>Introduction: </strong>Implant subsidence remains one of the complications following lumbar interbody fusion and total lumbar disc replacement, often attributed to excessive and uneven preparation of the subchondral bone. To address this limitation, we describe a novel surgical approach - en bloc discectomy - designed to enable more controlled disc removal, preserve subchondral endplate integrity, and minimize the risk of implant subsidence.</p><p><strong>Methods: </strong>We describe the procedural steps for the en bloc discectomy, including patient positioning, surgical approach, and the specific technique using a Cobb spinal elevator to remove the cartilaginous en bloc. The technique's advantages include controlled disc removal, minimized subsidence, and even subchondral endplate preparation.</p><p><strong>Results: </strong>En bloc discectomy was successfully performed in our patient. No intraoperative or postoperative complications occurred, and all patients reported immediate and sustained symptomatic improvement.</p><p><strong>Conclusion: </strong>En bloc discectomy provides a safe and reproducible alternative to conventional (standard piecemeal discectomy) disc excision. By reducing endplate damage and implant subsidence, this technique has the potential to improve long-term stability and clinical outcomes in patients undergoing lumbar interbody procedures.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"19"},"PeriodicalIF":2.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13094346/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147724289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SICOT-JPub Date : 2026-01-01Epub Date: 2026-05-05DOI: 10.1051/sicotj/2026026
Thomas Aubert, Willem Franssen, Aline Vandeputte
{"title":"Pilot study comparing operating room workflow and team ergonomics in robotic-assisted versus navigated total knee arthroplasty.","authors":"Thomas Aubert, Willem Franssen, Aline Vandeputte","doi":"10.1051/sicotj/2026026","DOIUrl":"10.1051/sicotj/2026026","url":null,"abstract":"<p><strong>Background: </strong>Robotic-assisted systems have been developed to improve the accuracy and reproducibility of total knee arthroplasty (TKA). While outcomes have been widely studied, the effects of these systems on intraoperative workflow and surgical team workload have received less attention. The aim of this study was to compare procedural setup, efficiency, workload, and ergonomics between the VELYS robotic-assisted solution (VRAS) and computer-navigated TKA (NAVI).</p><p><strong>Methods: </strong>Twenty patients who underwent primary TKA performed by a single surgeon, using a single implant type, were enrolled in this research (10VRAS, 10NAVI). Procedural efficiency was assessed by reference to an AI-backed process digital twin platform. Workload was evaluated using NASA-TLX questionnaires, objective ergonomic measures (power tool holding times, retractor holding times, and leg holding times), and a tray analysis.</p><p><strong>Results: </strong>The mean total operating room (OR) time was 69.4 min for the VRAS group and 72.9 min for the NAVI group, with no significant difference. The preparation (22 min) and the breakdown times (12.6 vs.11.7 min) were equivalent. The skin-to-skin times averaged 34.3 min for the VRAS group versus 38.9 min for the NAVI group. NASA-TLX scores revealed significantly lower mental, physical, and temporal demands, reduced effort and frustration, and better perceived performance of the surgeon in the VRAS group (p < 0.05). The instrument burden was similar, 5 trays (21.5 kg) for VRAS and 4 trays (20.9 kg) for NAVI. The objective workload was reduced for the VRAS group, with shorter power tool holding (2.7 vs. 7.7 min, p < 0.001), retractor holding (7.8 vs. 13.0 min, p = 0.01), and leg holding times (3.4 vs. 4.7 min, p = 0.02).</p><p><strong>Discussion: </strong>Compared with navigated TKA, robotic assistance did not prolong overall OR time and was associated with lower measured NASA-TLX scores. These findings suggest that robotic-assisted TKA may offer workflow and ergonomic advantages, although further studies with larger samples are needed to confirm these preliminary observations.</p><p><strong>Level of evidence: </strong>Level 4, retrospective study.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"24"},"PeriodicalIF":2.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13143209/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147844327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SICOT-JPub Date : 2026-01-01Epub Date: 2026-04-29DOI: 10.1051/sicotj/2026006
Raju Vaishya, Sébastien Lustig, Andreas F Mavrogenis, Vikas Khanduja
{"title":"Reflections on SICOT-J Volume 11 (2025).","authors":"Raju Vaishya, Sébastien Lustig, Andreas F Mavrogenis, Vikas Khanduja","doi":"10.1051/sicotj/2026006","DOIUrl":"10.1051/sicotj/2026006","url":null,"abstract":"<p><p>Volume 11 (2025) of SICOT-J showcases high-quality global orthopaedic research spanning spine, trauma, arthroplasty, sports, and perioperative care. Through impactful original studies, reviews, and editorials, the volume reinforces evidence-based practice, surgical innovation, and multidisciplinary approaches to contemporary musculoskeletal challenges worldwide.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"E2"},"PeriodicalIF":2.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13127121/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147785095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lateral approach in robotic total knee arthroplasty for valgus knees: A step-by-step technique.","authors":"Luca Andriollo, Pietro Gregori, Christos Koutserimpas, Elvire Servien, Cécile Batailler, Pascal Kouyoumdjian, Sébastien Lustig","doi":"10.1051/sicotj/2025017","DOIUrl":"10.1051/sicotj/2025017","url":null,"abstract":"<p><p>Total knee arthroplasty (TKA) in valgus knee deformities presents unique challenges, including alignment, soft tissue balance, and implant positioning. The lateral approach offers advantages over the traditional medial approach by improving direct access, patellar tracking, and soft tissue preservation. Robotic-assisted TKA enhances precision, ligament balancing, and patient-specific alignment strategies, such as functional knee positioning (FKP). This study describes a surgical technique integrating the lateral approach with robotic-assisted TKA using FKP principles. The technique is based on an image-based robotic system, ensuring accurate preoperative planning, intraoperative adjustments, and optimized prosthetic placement. Key intraoperative steps, including bone resection strategies, soft tissue balancing, and trial component evaluations, are detailed. The lateral robotic approach with FKP was found to be effective and reproducible, allowing for precise implant alignment and optimized soft tissue balance in valgus knees. This method minimizes the need for extensive lateral releases, preserves vascularity, and ensures postoperative stability. The combination of the lateral approach, robotic-assisted TKA, and FKP represents a promising strategy for valgus knee deformities. Further long-term studies are needed to validate the durability and functional benefits of this technique.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"11 ","pages":"20"},"PeriodicalIF":1.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11948998/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143722077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SICOT-JPub Date : 2025-01-01Epub Date: 2025-03-19DOI: 10.1051/sicotj/2025010
Tiffany Carol Oliver, Babar Kayani, Tianyi David Luo, Hugo Humphries, Fares Sami Haddad
{"title":"Current concepts in total knee arthroplasty: Rotating hinge prostheses.","authors":"Tiffany Carol Oliver, Babar Kayani, Tianyi David Luo, Hugo Humphries, Fares Sami Haddad","doi":"10.1051/sicotj/2025010","DOIUrl":"10.1051/sicotj/2025010","url":null,"abstract":"<p><p>This narrative review evaluates the purpose and functionality of rotating hinged total knee arthroplasty (RHTKA). The main indications for an RHTKA are poor bone stock, soft tissue compromise, gross instability, and periprosthetic fractures. Studies have shown that an RHTKA may be used in both the primary and revision scenarios to improve the range of motion and functional outcomes. Radiostereometric analysis has shown that some RHTKA designs are associated with early femoral component micromotion, but this has not translated to increased failure or revision rates. Implant survivorship with a modern RHTKA is comparable to a condylar-constrained TKA at mid-term follow-up. The most common complications associated with RHTKA are aseptic loosening, periprosthetic joint infection, stiffness and periprosthetic fractures.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"11 ","pages":"18"},"PeriodicalIF":1.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11922500/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143664970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}