Journal of Joint Surgery and Research最新文献

{"title":"Is anterosuperior cup overhang a risk factor for iliopsoas impingement after total hip arthroplasty? A radar chart analysis","authors":"Sakura Kuniyoshi ,&nbsp;Satoshi Nakasone ,&nbsp;Mika Takaesu ,&nbsp;Takahiro Igei ,&nbsp;Fumiyuki Washizaki ,&nbsp;Masamichi Onaga ,&nbsp;Masato Ishihara ,&nbsp;Kotaro Nishida","doi":"10.1016/j.jjoisr.2025.04.004","DOIUrl":"10.1016/j.jjoisr.2025.04.004","url":null,"abstract":"<div><h3>Purpose</h3><div>Groin pain is an occasional complication of total hip arthroplasty (THA), with iliopsoas impingement (IPI) often associated with irritation between the iliopsoas tendon and an overhanging acetabular cup. Although cup overhang is typically assessed using radiography or computed tomography (CT), a more precise evaluation of cup positioning within the acetabulum may improve IPI diagnosis. This study aimed to investigate the association between IPI and circumferential cup overhang using the radar chart method to determine the precise amount of cup overhang without being affected by the metal artifacts.</div></div><div><h3>Methods</h3><div>A total of 128 patients who underwent primary THA via the direct anterior approach between 2014 and 2023 were analyzed. Patients were divided into IPI and non-IPI groups. To eliminate the influence of metal artifacts, pre-operative CT with a computer-aided design model of the acetabulum cup was generated using image matching. Radial CT planes were created at 15° intervals, and the angles of edge of the acetabular cup (ACA) and acetabular rim (ARA) were measured in each plane. The acetabular rim was represented as a clock, and radar charts were generated for each group. Cup overhang was defined as locations where the ACA exceeded the ARA.</div></div><div><h3>Results</h3><div>The radar chart of the IPI group demonstrated significant cup overhang in the 1:30 location.</div></div><div><h3>Conclusions</h3><div>These result suggests that cup overhang in the anterosuperior region, particularly in the 1:30 location, is a risk factor for IPI following THA. The radar chart method provides a comprehensive evaluation of cup positioning and may serve as a valid evaluation tool for assisting IPI diagnosis.</div></div>","PeriodicalId":100795,"journal":{"name":"Journal of Joint Surgery and Research","volume":"3 2","pages":"Pages 113-120"},"PeriodicalIF":0.0,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Updates in the management of lateral patellar instability","authors":"Amber M. Parker ,&nbsp;Naofumi Hashiguchi ,&nbsp;Miho J. Tanaka","doi":"10.1016/j.jjoisr.2025.04.001","DOIUrl":"10.1016/j.jjoisr.2025.04.001","url":null,"abstract":"<div><h3>Purpose</h3><div>The purpose of this study was to review current concepts in the evaluation and management of lateral patellar instability, focusing on anatomical risk factors, diagnostic approaches, and treatment strategies.</div></div><div><h3>Methods</h3><div>A comprehensive review of the literature examining anatomical considerations, risk factors, diagnostic methods, and treatment options for patellar instability was conducted. The review focused on the medial patellofemoral complex (MPFC) anatomy, various imaging modalities, and conservative and surgical management approaches.</div></div><div><h3>Results</h3><div>Patellar instability involves multiple anatomical risk factors, including abnormalities in dynamic/static stabilizers, osseous restraints, and lower extremity alignment. The MPFC, consisting of the medial patellofemoral ligament (MPFL) and medial quadriceps tendon–femoral ligament, provides primary restraint against lateral instability in early knee flexion. While 94–100% of first-time dislocations involve MPFL injury and can be managed conservatively, patients with multiple risk factors show 70–90% recurrence rates. Surgical treatment through MPFC reconstruction shows low redislocation rates (1.8–4.5%) and may be combined with additional procedures such as tibial tubercle osteotomy, trochleoplasty, or alignment correction based on individual pathoanatomy.</div></div><div><h3>Conclusions</h3><div>Successful management of patellar instability requires a comprehensive evaluation of anatomical risk factors and individualized treatment approaches. While conservative management is appropriate for first-time dislocations without significant risk factors, surgical intervention through MPFC reconstruction and associated procedures shows promising outcomes in preventing recurrence and improving function in high-risk patients.</div></div>","PeriodicalId":100795,"journal":{"name":"Journal of Joint Surgery and Research","volume":"3 2","pages":"Pages 103-112"},"PeriodicalIF":0.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temporal changes in synovitis and chronic pain after total knee arthroplasty: A two-year longitudinal study","authors":"Natsuki Sugimura,&nbsp;Koji Aso,&nbsp;Hiroyuki Wada,&nbsp;Masashi Izumi,&nbsp;Masahiko Ikeuchi","doi":"10.1016/j.jjoisr.2025.04.002","DOIUrl":"10.1016/j.jjoisr.2025.04.002","url":null,"abstract":"<div><h3>Purpose</h3><div>Chronic post-surgical pain (CPSP) following total knee arthroplasty (TKA) leads to significant patient dissatisfaction post-operatively. Previous cross-sectional research has identified post-TKA synovitis as a key factor influencing CPSP, but there is a lack of longitudinal data. This study aimed to analyze risk factors for post-TKA pain and synovitis, including pre-operative elements, to better understand their roles in CPSP.</div></div><div><h3>Methods</h3><div>A cohort of 49 knees from 42 patients undergoing TKA for osteoarthritis was assessed. Demographic data, pre-operative and post-operative radiographic findings, pre-operative magnetic resonance imaging, intra-operative blood loss, and post-operative C-reactive protein levels were documented. Chronic pain, measured using the WOMAC pain subscale, and synovitis, quantified by our original “total PD score” using power Doppler (PD) ultrasonography, were recorded pre-operatively and at six months, one year, and two years post-operatively. Multivariable analysis was used to identify factors contributing to chronic pain and synovitis at these time points.</div></div><div><h3>Results</h3><div>Multivariable analysis showed that the total PD score was significantly associated with chronic pain at one and two years post-TKA. Pre-operative WOMAC pain subscale scores were also significantly associated with chronic pain at one year. For synovitis, the pre-operative total PD score was associated at the two year mark, and body mass index (BMI) was found to be a contributing factor at six months, one year, and two years.</div></div><div><h3>Conclusions</h3><div>Greater overall synovitis on PD ultrasonography was significantly associated with chronic pain post-TKA. Greater pre-operative synovitis and lower BMI were identified as contributing factors to post-TKA synovitis on PD ultrasonography. Further research is warranted to explore additional unassessed factors influencing post-TKA synovitis and to enhance imaging assessments.</div></div>","PeriodicalId":100795,"journal":{"name":"Journal of Joint Surgery and Research","volume":"3 2","pages":"Pages 96-102"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Robotic-assisted total knee arthroplasty: Systematic review of surgical assist robotic systems available in Japan","authors":"Keizo Wada ,&nbsp;Daisuke Hamada ,&nbsp;Yasuaki Tamaki ,&nbsp;Shota Shigekiyo ,&nbsp;Koichi Sairyo","doi":"10.1016/j.jjoisr.2025.04.003","DOIUrl":"10.1016/j.jjoisr.2025.04.003","url":null,"abstract":"<div><h3>Purpose</h3><div>Surgical assistant robots are now available for total knee arthroplasty (TKA). This review aimed to clarify the characteristics, accuracy, learning curve, and clinical results of robotic-assisted (RA) TKA performed using systems that are currently available in Japan (MAKO, ROSA, NAVIO/CORI, and VELYS).</div></div><div><h3>Methods</h3><div>The PubMed database was searched to identify studies on RA-TKA.</div></div><div><h3>Results</h3><div>MAKO is a semi-active robot using an oscillating saw. It is a computed tomography-based platform capable of determining the size and location of an implant pre-operatively. ROSA offers both imageless and image-based options using two-dimensional radiographs that are transformed into a three-dimensional model of the knee. NAVIO and CORI are handheld robotic platforms that support image-free anatomic data collection and streamlined intra-operative surgical planning with dynamic gap balancing. VELYS is an image-free, operating room bedrail-mounted, RA system that positions an oscillating saw for the surgeon to perform bone resection with real-time cut-plane tracking to compensate for any leg movement. Although there are some characteristic differences among the surgical assistant robots, the present review reveals that robot-controlled osteotomy may be more accurate than conventional techniques using a conventional guide and bone saw, with favorable short-term outcomes after RA-TKA.</div></div><div><h3>Conclusions</h3><div>This review found that the robotic systems recently made available in Japan demonstrate a high level of accuracy and show favorable short-term outcomes.</div></div>","PeriodicalId":100795,"journal":{"name":"Journal of Joint Surgery and Research","volume":"3 2","pages":"Pages 90-95"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a wearable system to estimate knee adduction moment of patients with knee osteoarthritis during gait using a single inertial measurement unit","authors":"Ayako Akiba ,&nbsp;Kengo Harato ,&nbsp;Hiroshi Yoshihara ,&nbsp;Yu Iwama ,&nbsp;Kohei Nishizawa ,&nbsp;Takeo Nagura ,&nbsp;Masaya Nakamura","doi":"10.1016/j.jjoisr.2025.02.005","DOIUrl":"10.1016/j.jjoisr.2025.02.005","url":null,"abstract":"<div><h3>Purpose</h3><div>The external knee adduction moment (KAM) during gait is an important mechanical factor for knee osteoarthritis (KOA). Three-dimensional motion capture (MoCap) has been used to measure KAM, but it has limitations including cost, measuring time, and space. The purpose of this study was to develop a simple and wearable system to estimate KAM.</div></div><div><h3>Methods</h3><div>Thirty-nine female and seven male subjects diagnosed with KOA were included. Simultaneous measurements of 5 ​m walk using MoCap and inertial measurement unit (IMU) attached to the knee were performed, and a deep learning algorithm based on a gait phase detection algorithm and one-dimensional convolutional neural network model was used to estimate KAM. In addition, the reliability of the artificial intelligence system was also evaluated.</div></div><div><h3>Results</h3><div>The mean absolute percent error (MAPE) and mean absolute error (MAE) of estimated KAM peak of the training data and test datasets were 13.0% and 0.0428 Nm.s/(BW∗Ht) and 17.3% and 0.0505 Nm.s/(BW∗Ht), respectively, and those of estimated KAM impulse were 20.4% and 0.0214 Nm.s/(BW∗Ht) and 21.4% and 0.0212 Nm.s/(BW∗Ht), respectively. The Pearson correlation coefficients between estimated KAM (peak, impulse) and MoCap KAM (peak, impulse) were 0.870 and 0.975 in the training dataset and 0.591 and 0.690 in the test dataset. The intraclass correlation coefficients (ICCs) of estimated KAM impulse were 0.83, 0.94, 0.70, and 0.82 for ICCs (1.1), (1,k), (2,1), and (2,k) respectively.</div></div><div><h3>Conclusions</h3><div>The wearable system showed reasonable accuracy and reliability in estimating KAM of KOA during gait. The simple equipment in the system enables the measurement of KAM during daily practice in the clinic or hospital if there is available space to walk 5 ​m.</div></div>","PeriodicalId":100795,"journal":{"name":"Journal of Joint Surgery and Research","volume":"3 2","pages":"Pages 84-89"},"PeriodicalIF":0.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683644","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":"Evaluation of early implant failure in Japanese patients undergoing unrestricted kinematic alignment total knee arthroplasty","authors":"Shuji Toyono ,&nbsp;Shigenobu Fukushima ,&nbsp;Takao Yamamoto ,&nbsp;Takashi Ito ,&nbsp;Takahiro Miyaji ,&nbsp;Akemi Suzuki ,&nbsp;Michiaki Takagi","doi":"10.1016/j.jjoisr.2025.02.004","DOIUrl":"10.1016/j.jjoisr.2025.02.004","url":null,"abstract":"<div><h3>Purpose</h3><div>Total knee arthroplasty (TKA) traditionally involves mechanical alignment with a target range of ±3°. However, unrestricted kinematic alignment (urKA) has emerged as a viable alternative, potentially maintaining a favorable implant survival rate without the constraints of neutral alignment. Japanese people have more pronounced tibial varus than other populations. This study evaluated early implant failures in Japanese patients with osteoarthritis who underwent urKA-TKA.</div></div><div><h3>Methods</h3><div>In this study, 557 knees of 460 patients who underwent urKA-TKA between June 2019 and September 2021 were retrospectively analyzed. Surgeries were conducted by four surgeons using standardized urKA techniques, ensuring consistent ligament balancing and component positioning. The primary outcome was the rate of revision for aseptic loosening over at least 2 years, with secondary outcomes focusing on post-operative alignment.</div></div><div><h3>Results</h3><div>The follow-up rate was 95%, with a mean of 3.0 years. The implant survival rate was 100% considering implant revision as the endpoint, and 99% when re-operation was included. Post-operative alignment revealed that 60.3% of tibial components and 39.3% of limbs had varus alignment exceeding 3°; however, this did not compromise implant survival during the follow-up period.</div></div><div><h3>Conclusions</h3><div>The follow-up of at least 2 years for urKA-TKA in a Japanese cohort demonstrated no early implant failures with no significant effect on outcomes from deviations in varus alignment. These results support the use of urKA-TKA and underscore the need for long-term studies to further substantiate these findings in the Japanese population.</div></div>","PeriodicalId":100795,"journal":{"name":"Journal of Joint Surgery and Research","volume":"3 2","pages":"Pages 79-83"},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683645","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":"Prevention of surgical site infection: need to focus on the enemy within","authors":"Arian Ocean Abedi ,&nbsp;Armita Armina Abedi ,&nbsp;Javad Parvizi","doi":"10.1016/j.jjoisr.2025.02.003","DOIUrl":"10.1016/j.jjoisr.2025.02.003","url":null,"abstract":"<div><h3>Purpose</h3><div>This review aimed to summarize effective measures to prevent surgical site infections (SSIs) and periprosthetic joint infections (PJIs) following total joint arthroplasty (TJA), focusing specifically on the role of the patient's microbiome in the pathogenesis of SSI and highlighting the importance of targeted decolonization strategies.</div></div><div><h3>Methods</h3><div>The impact of the microbiome of the skin, nose, and oral cavity on SSIs is examined. The review includes a detailed analysis of recent literature regarding microbiome-focused interventions and the role of synbiotics in enhancing the gastrointestinal epithelial barrier and reducing pathogen translocation. It also addresses how the host's resistome contributes to antibiotic resistance, which complicates infection prophylaxis.</div></div><div><h3>Results</h3><div>The findings suggest that strategic targeting of the microbiome through specific preoperative, intraoperative, and postoperative protocols can significantly improve surgical outcomes. The evidence supports the efficacy of microbiome-centered approaches in infection prevention, with a substantial focus on the roles of the skin, nasal, and oral microbiomes. However, the potential role of the gut microbiome remains less explored in arthroplasty.</div></div><div><h3>Conclusions</h3><div>Understanding the endogenous sources of SSIs through the microbiome offers a promising direction for reducing infection rates in TJA. While current evidence encourages a shift in pre-operative preparations and post-operative care to incorporate microbiome-centered strategies, further research is necessary to fully explore the potential of the gut microbiome in enhancing prophylaxis against SSIs and PJIs.</div></div>","PeriodicalId":100795,"journal":{"name":"Journal of Joint Surgery and Research","volume":"3 1","pages":"Pages 73-77"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510267","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":"Appreciation to reviewers in 2024","authors":"","doi":"10.1016/j.jjoisr.2025.01.002","DOIUrl":"10.1016/j.jjoisr.2025.01.002","url":null,"abstract":"","PeriodicalId":100795,"journal":{"name":"Journal of Joint Surgery and Research","volume":"3 1","pages":"Page 78"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577360","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":"Therapeutic strategies for periprosthetic femoral fractures based on three classification systems","authors":"Tomonori Baba ,&nbsp;Taiji Watari ,&nbsp;Yasuhiro Homma ,&nbsp;Kazuo Kaneko ,&nbsp;Muneaki Ishijima","doi":"10.1016/j.jjoisr.2025.02.002","DOIUrl":"10.1016/j.jjoisr.2025.02.002","url":null,"abstract":"<div><h3>Purpose</h3><div>The standardization of treatment strategies for periprosthetic femoral fractures is a critical objective for orthopedic surgeons. This review outlines detailed therapeutic approaches based on three classification systems: the Baba, AO/OTA, and Vancouver classifications.</div></div><div><h3>Methods</h3><div>This review examined implant stability assessment, internal fixation techniques, and revision strategies for hip function restoration in periprosthetic femoral fractures.</div></div><div><h3>Results</h3><div>The Baba classification objectively determines implant stability, guiding treatment selection. The AO/OTA classification assists in identifying the most appropriate internal fixation technique. The Vancouver classification informs the choice of reconstruction methods for revision surgery.</div></div><div><h3>Conclusions</h3><div>Management of periprosthetic femoral fractures necessitates specialized expertise in joint reconstruction while adhering to the fundamental principles of osteosynthesis to promote bony union.</div></div>","PeriodicalId":100795,"journal":{"name":"Journal of Joint Surgery and Research","volume":"3 1","pages":"Pages 65-72"},"PeriodicalIF":0.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463587","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":"Comparison of cup placement accuracy using the navigation in total hip arthroplasty between three models using inverse probability of treatment weighting","authors":"Shotaro Tachibana,&nbsp;Shinya Hayashi,&nbsp;Yuichi Kuroda,&nbsp;Tomoyuki Kamenaga,&nbsp;Masanori Tsubosaka,&nbsp;Kensuke Wada,&nbsp;Yoshihito Suda,&nbsp;Yuma Onoi,&nbsp;Kemmei Ikuta,&nbsp;Kensuke Anjiki,&nbsp;Naoki Nakano,&nbsp;Tomoyuki Matsumoto,&nbsp;Ryosuke Kuroda","doi":"10.1016/j.jjoisr.2025.01.003","DOIUrl":"10.1016/j.jjoisr.2025.01.003","url":null,"abstract":"<div><h3>Purpose</h3><div>This study compared the accuracy of acetabular cup placement between three portable navigation systems during total hip arthroplasty (THA). Furthermore, factors affecting accuracy were investigated.</div></div><div><h3>Methods</h3><div>A total of 101 patients who underwent THA using accelerometer-based navigation, 3D mini-optical navigation, or augmented reality (AR)-based navigation were analyzed. Post-operative cup placement angles were measured using three-dimensional templates. Propensity scores were calculated based on age, sex, body mass index (BMI), and target placement angle. After adjusting for confounding factors using inverse probability of treatment weighting matching, absolute differences in post-operative and intra-operative inclination and anteversion angles were analyzed using one-way analysis of variance (<em>p</em> ​&lt; ​0.05). The backgrounds of outliers (an absolute difference in inclination or anteversion &gt;5°) and non-outliers were compared using <em>t</em>-test and Fisher's exact test. Additionally, logistic regression analysis was performed to calculate the odds ratios of background outliers.</div></div><div><h3>Results</h3><div>The absolute differences in post-operative and intra-operative inclination angles were 2.8°, 3.0°, and 2.9° for accelerometer-based navigation, 3D mini-optical navigation, and AR-based navigation, respectively, with no significant differences. The mean differences in anteversion angles among the groups were 2.2° for accelerometer-based navigation, 2.7° for 3D mini-optical navigation, and 2.2° for AR-based navigation, with no significant differences. BMI was significantly higher in the outlier group (<em>p</em> ​= ​0.03), and logistic regression analysis results showed an odds ratio of 1.2 (<em>p</em> ​= ​0.02).</div></div><div><h3>Conclusions</h3><div>This study demonstrated no significant differences in cup placement accuracy among the three navigation systems after adjusting for confounding factors. High BMI may have affected accuracy.</div></div>","PeriodicalId":100795,"journal":{"name":"Journal of Joint Surgery and Research","volume":"3 1","pages":"Pages 59-64"},"PeriodicalIF":0.0,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143446132","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}