Journal of Orthopaedic Science最新文献

{"title":"Comparison of clinical outcome between surgical treatment and particle beam therapy for pelvic bone sarcomas: A retrospective multicenter study in Japan","authors":"Toshiyuki Takemori ,&nbsp;Hitomi Hara ,&nbsp;Teruya Kawamoto ,&nbsp;Naomasa Fukase ,&nbsp;Ryoko Sawada ,&nbsp;Shuichi Fujiwara ,&nbsp;Ikuo Fujita ,&nbsp;Takuya Fujimoto ,&nbsp;Masayuki Morishita ,&nbsp;Shunsuke Yahiro ,&nbsp;Tomohiro Miyamoto ,&nbsp;Masanori Saito ,&nbsp;Jun Sugaya ,&nbsp;Katsuhiro Hayashi ,&nbsp;Hiroyuki Kawashima ,&nbsp;Tomoaki Torigoe ,&nbsp;Tomoki Nakamura ,&nbsp;Hiroya Kondo ,&nbsp;Toru Wakamatsu ,&nbsp;Munenori Watanuki ,&nbsp;Toshihiro Akisue","doi":"10.1016/j.jos.2024.06.007","DOIUrl":"10.1016/j.jos.2024.06.007","url":null,"abstract":"<div><h3>Background</h3><div><span>Few studies have compared the clinical outcomes of patients with pelvic bone sarcomas treated surgically and those treated with particle beam therapy. This is a multicenter </span>retrospective cohort study<span> which compared the clinical outcomes of patients with pelvic bone sarcoma who underwent surgical treatment and particle beam therapy in Japan.</span></div></div><div><h3>Methods</h3><div>A total of 116 patients with pelvic bone sarcoma treated at 19 specialized sarcoma centers in Japan were included in this study. Fifty-seven patients underwent surgery (surgery group), and 59 patients underwent particle beam therapy (particle beam group; carbon-ion radiotherapy: 55 patients, proton: four patients).</div></div><div><h3>Results</h3><div><span>The median age at primary tumor diagnosis was 52 years in the surgery group and 66 years in the particle beam group (P &lt; 0.001), and the median tumor size was 9 cm in the surgery group and 8 cm in the particle beam group (P = 0.091). Overall survival (OS), local control (LC), and metastasis-free survival (MFS) rates were evaluated using the Kaplan-Meier method and compared among 116 patients with bone sarcoma (surgery group, 57 patients; particle beam group, 59 patients). After propensity score matching<span>, the 3-year OS, LC, and MFS rates were 82.9% (95% confidence interval [CI], 60.5–93.2%), 66.0% (95% CI, 43.3–81.3%), and 78.4% (95% CI, 55.5–90.5%), respectively, in the surgery group and 64.9% (95% CI, 41.7–80.8%), 86.4% (95% CI, 63.3–95.4%), and 62.6% (95% CI, 38.5–79.4%), respectively, in the particle beam group. In chordoma patients, only surgery was significantly correlated with worse LC in the </span></span>univariate analysis.</div></div><div><h3>Conclusions</h3><div>The groups had no significant differences in the OS, LC, and MFS rates. Among the patients with chordomas, the 3-year LC rate in the particle beam group was significantly higher than in the surgery group.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 3","pages":"Pages 523-528"},"PeriodicalIF":1.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141534632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Percutaneous treatment of type C distal radius fractures using dual-external fixator","authors":"Xiaofei Yu ,&nbsp;Xu Zhang ,&nbsp;Nan Li ,&nbsp;Yadong Yu ,&nbsp;Xiaoliang Yang","doi":"10.1016/j.jos.2024.07.004","DOIUrl":"10.1016/j.jos.2024.07.004","url":null,"abstract":"<div><h3>Background</h3><div>This study aimed to introduce a potential alternative percutaneous treatment for AO types C1, C2, and C3 distal radius fractures using dual-external fixator (a no-bridging cemented-pin frame and a conventional wrist-bridging external fixator).</div></div><div><h3>Materials and methods</h3><div>From January 2018 to January 2021, 52 patients (52 distal radius fractures) were treated with dual-external fixator. For comparison, 61 patients (61 distal radius fractures) were treated with a plate and screw system. Wrist function was assessed using the Mayo Wrist Score. Patient satisfaction was assessed using the Short Assessment of Patient Satisfaction. A P &lt; 0.05 was considered statistically significant.</div></div><div><h3>Results</h3><div>Fracture healing was achieved in all patients. At the final follow-up of 29 months (range, 24–34 months) <em>vs</em> 36 months (range, 26–39 months) (<em>P</em> &gt; 0.05), the patients treated with dual-external fixator and a plate and screw system achieved mean ulnar deviations of 31° <em>vs</em> 29° (<em>P</em> &lt; 0.05), mean Mayo Wrist Scores of 91.12 ± 5.98 <em>vs</em> 88.12 ± 7.54 (P &lt; 0.05), and mean patient satisfaction scores of 23.42 ± 2.47 <em>vs</em> 23.04 ± 2.32 (<em>P</em> &gt; 0.05).</div></div><div><h3>Conclusions</h3><div>AO types C1, C2, and C3 distal radius fractures can be treated successfully using dual-external fixator. The technique is a potential alternative in addition to the conventional treatments.</div></div><div><h3>Level of evidence</h3><div>Level IIa.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 3","pages":"Pages 445-450"},"PeriodicalIF":1.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141759408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Continuous local antibiotic perfusion for deep infection of the foot and ankle","authors":"Hirofumi Nakajima ,&nbsp;Satoshi Yamaguchi ,&nbsp;Seiji Kimura ,&nbsp;Manato Horii ,&nbsp;Yukio Mikami ,&nbsp;Takahisa Sasho ,&nbsp;Seiji Ohtori","doi":"10.1016/j.jos.2024.07.011","DOIUrl":"10.1016/j.jos.2024.07.011","url":null,"abstract":"<div><h3>Background</h3><div>This study aimed to report the outcome of deep infections of the foot and ankle, which are among the most challenging orthopedic conditions to treat, after continuous local antibiotic perfusion.</div></div><div><h3>Methods</h3><div>Eleven patients with deep foot and ankle infections were treated with continuous local antibiotic perfusion between January 2019 and March 2024. After surgical debridement, we performed continuous perfusion of high concentrations of gentamicin (60 mg/50 ml) directly into the infected bone and soft tissue for two weeks using bone marrow needles and double-lumen tubes. Patient characteristics, infection relapse, and adverse events were investigated.</div></div><div><h3>Results</h3><div>The mean age of the patients was 53 years (range 12–79 years), with six males and five females. The infections were controlled without additional surgeries in ten patients with a mean follow-up of 40 months (12–62 months). Two patients developed a fungal infection, of which one required an additional debridement surgery, and the other was treated with oral antifungal medication. No adverse events occurred due to high-concentration gentamicin.</div></div><div><h3>Conclusions</h3><div>Short-term infection control was achieved using continuous local antibiotic perfusion; thus, it can be a treatment option for deep infections of the foot and ankle.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 3","pages":"Pages 548-553"},"PeriodicalIF":1.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141917003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship between frailty and locomotive syndrome in older patients with degenerative cervical myelopathy: A retrospective longitudinal study","authors":"Hiroki Takeda ,&nbsp;Takehiro Michikawa ,&nbsp;Sota Nagai ,&nbsp;Yuki Akaike ,&nbsp;Takaya Imai ,&nbsp;Soya Kawabata ,&nbsp;Kei Ito ,&nbsp;Daiki Ikeda ,&nbsp;Shinjiro Kaneko ,&nbsp;Nobuyuki Fujita","doi":"10.1016/j.jos.2024.07.003","DOIUrl":"10.1016/j.jos.2024.07.003","url":null,"abstract":"<div><h3>Background</h3><div>The management of degenerative cervical myelopathy<span> (DCM), which often impairs lower extremity function and increases the risk of falls, is gaining recognition for its importance in an aging society. Despite the significant overlap between frailty and locomotive syndrome (LS) in older adults, their interaction in older DCM patients remains unclear. We aimed to determine the characteristics of older DCM patients with frailty, focusing on the association between frailty and LS.</span></div></div><div><h3>Methods</h3><div>We retrospectively examined the clinical records and imaging data of consecutive patients aged 65 years and above who underwent surgery for DCM at a single facility. Frailty and LS stage were diagnosed using the modified frailty index-11 and the 25-question Geriatric Locomotive Function Scale (GLFS-25), respectively.</div></div><div><h3>Results</h3><div>A total of 114 subjects were analyzed, among whom approximately 30% were diagnosed with frailty. DCM patients with frailty had significantly worse Japanese Orthopaedic Association Cervical Myelopathy Assessment Questionnaire (JOACMEQ) and GLFS-25 scores at baseline than did those without frailty. Moreover, DCM patients with frailty had significantly more advanced LS stage at baseline than did those without frailty. Meanwhile, no significant difference in the improvement in JOACMEQ and GLFS-25 scores were observed between those with and without frailty after surgery. More precisely, DCM patients with frailty experienced better improvement in lower extremity function based on the JOACMEQ than did those without frailty.</div></div><div><h3>Conclusions</h3><div>Our results demonstrated that older DCM patients had favorable outcomes following surgery regardless of frailty. Despite the significant association between frailty and LS in DCM patients, frailty did not negatively impact the improvement in LS in older DCM patients. These findings provide valuable information for both older DCM patients and their attending physicians that would help guide decisions about cervical spine surgery for DCM.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 3","pages":"Pages 554-559"},"PeriodicalIF":1.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141627027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of lower limb vibration on hip pain and function after total hip arthroplasty: A randomized controlled trial","authors":"Hisashi Ikutomo ,&nbsp;Masatoshi Nakamura ,&nbsp;Kenichi Okamura ,&nbsp;Keiichi Togomori ,&nbsp;Norikazu Nakagawa ,&nbsp;Kensaku Masuhara","doi":"10.1016/j.jos.2024.08.003","DOIUrl":"10.1016/j.jos.2024.08.003","url":null,"abstract":"<div><h3>Background</h3><div>A vibration roller is an effective tool for reducing muscle soreness and improving damaged muscle function. However, its efficacy in reducing hip pain and improving function after total hip arthroplasty is unclear. We investigated the effect of lower limb vibration using a vibration roller on postoperative hip pain and function after total hip arthroplasty in a randomized controlled clinical trial.</div></div><div><h3>Methods</h3><div>Thirty patients scheduled for total hip arthroplasty were randomly assigned to vibration and control groups. The patients in the vibration group performed lower limb vibration using a vibration roller. The patients in the control group performed sham therapy using a hot pack. Patients performed both interventions for 10 min daily on postoperative days 1–7, in addition to regular physical therapy. Primary outcome was hip pain intensity as measured using a visual analog scale. Secondary outcomes were pain-pressure threshold and serum creatine kinase and C-reactive protein levels. We also assessed physical functions, including the Harris Hip Score, range of motion of the hip joint, muscle strength, gait velocity, and timed up-and-go test. The effects of the interventions on outcome measurements in the groups were compared using a split-plot design variance analysis.</div></div><div><h3>Results</h3><div>After one week of the intervention and three weeks of follow-up, the vibration group showed statistically significant improvement in the exercise-induced hip pain, pain-pressure threshold of lateral thigh, and serum creatine kinase compared to the control group (p = 0.006, 0.003, and 0.012, respectively). No statistically significant differences were found between the groups regarding the physical functions.</div></div><div><h3>Conclusions</h3><div>Lower limb vibration using a vibration roller after total hip arthroplasty was an effective intervention to reduce exercise-induced hip pain and improve serum creatine kinase, but there was no synergistic effect on the physical functions.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 3","pages":"Pages 499-506"},"PeriodicalIF":1.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142126056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Does prior rotator cuff surgery influence the outcomes and complications after reverse total shoulder arthroplasty in patients with cuff tear arthropathy or massive rotator cuff tear? A propensity score-matched study","authors":"Chul-Hyun Cho ,&nbsp;Byung-Chan Choi ,&nbsp;Bum-Soon Park ,&nbsp;Yeji Kim ,&nbsp;Soon Gu Kim ,&nbsp;Du-Han Kim","doi":"10.1016/j.jos.2024.06.010","DOIUrl":"10.1016/j.jos.2024.06.010","url":null,"abstract":"<div><h3>Background</h3><div><span>The aim of this study was to compare outcomes and complications in patients with and without a history of prior rotator cuff surgery who underwent </span>reverse total shoulder arthroplasty (RTSA).</div></div><div><h3>Methods</h3><div>Two-hundred and nine consecutive patients who had undergone RTSA for rotator cuff insufficiency with a minimum 12-months follow-up period were reviewed. A total of 35 patients with a history of prior rotator cuff surgery were made the study group (PS group). Using propensity score matching for age and sex, these patients were matched 1:3 with a control group of 105 patients with no history of prior surgery (NPS group). The mean follow-up period was 41.4 months.</div></div><div><h3>Results</h3><div><span>Both groups showed a significant improvement of clinical scores and range of motion after RTSA. The PS group showed a significantly higher final visual analog scale<span> (VAS) pain score compared with the NPS group (P = 0.020). The PS group showed a significantly higher incidence of acromial stress fracture compared with the NPS group (17.1% vs 4.8%, P = 0.018), but no significant difference in the overall complication rate was observed (25.7% vs 13.3%, P &gt; 0.05). The PS group showed a significantly higher </span></span>reoperation rate compared with the NPS group (14.3% vs 1.9%, P = 0.004).</div></div><div><h3>Conclusions</h3><div>Our study demonstrated that a history of prior rotator cuff surgery was associated with a high incidence of acromial stress fracture and reoperation after RTSA as well as a high final VAS pain score, although satisfactory clinical outcomes after RTSA were achieved in both groups.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 3","pages":"Pages 440-444"},"PeriodicalIF":1.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141468959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cartilage thickness in the medial compartment of the knee joint evaluated by MRI three-dimensional analysis correlates with weight-bearing line ratio and joint line convergence angle","authors":"Nobutake Ozeki ,&nbsp;Hideyuki Koga ,&nbsp;Tomomasa Nakamura ,&nbsp;Hiroki Katagiri ,&nbsp;Yusuke Nakagawa ,&nbsp;Takashi Hoshino ,&nbsp;Mai Katakura ,&nbsp;Masaki Amemiya ,&nbsp;Aritoshi Yoshihara ,&nbsp;Hisako Katano ,&nbsp;Mitsuru Mizuno ,&nbsp;Kentaro Endo ,&nbsp;Jun Masumoto ,&nbsp;Ichiro Sekiya","doi":"10.1016/j.jos.2024.07.002","DOIUrl":"10.1016/j.jos.2024.07.002","url":null,"abstract":"<div><h3>Purpose</h3><div>The correlation between cartilage thickness evaluated by 3D MRI and knee alignment has not been elucidated. The study's purpose was to retrospectively verify whether average cartilage thickness calculated by the automatic MRI 3D analysis system for each subregion was correlated with knee alignment.</div></div><div><h3>Methods</h3><div>A total of 53 patients underwent medial meniscus repair or high tibial osteotomy for medial knee osteoarthritis. Cartilage thickness was automatically calculated using 3D MRI software. Knee alignment, weight-bearing line ratio (WBLR), joint line convergence angle (JLCA), medial proximal tibial angle (MPTA), and lateral distal femoral angle (LDFA) were calculated on a weight-bearing long-leg radiograph using digital planning software. The association between knee alignment and the average cartilage thickness at 18 subregions in the medial femoral condyle (MFC) and medial tibial plateau (MTP) was evaluated using Spearman's rank correlation coefficient.</div></div><div><h3>Results</h3><div>Cartilage thickness of the MFC had moderately positive correlations with WBLR at four subregions and weak correlations at two subregions. Cartilage thickness of the MTP had moderately positive correlations with WBLR at four subregions. Cartilage thickness of the MFC had moderately negative correlations with JLCA at six subregions. Cartilage thickness of the MTP had moderately negative correlations with JLCA at four subregions and a weak correlation at one subregion. Conversely, cartilage thickness had weak correlations with MPTA or LDFA.</div></div><div><h3>Conclusions</h3><div>In knees with pathological conditions in the medial compartment, cartilage thicknesses by 3D MRI had positive correlations with WBLR and JLCA at almost all subregions of the MFC and at the anterior-middle and central-external of the MTP. Treatment strategies should be considered in light of these regions.</div></div><div><h3>Level of evidence</h3><div>Cross-sectional study (diagnosis); Level of evidence, 2.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 3","pages":"Pages 462-471"},"PeriodicalIF":1.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141788431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"‘Synchronicity of science, passion and art in orthopedic oncology’","authors":"Kanya Honoki","doi":"10.1016/j.jos.2024.12.002","DOIUrl":"10.1016/j.jos.2024.12.002","url":null,"abstract":"","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 3","pages":"Pages 413-414"},"PeriodicalIF":1.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142895567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radiation therapy improves survival in elderly patients with localized extremity soft tissue sarcoma","authors":"Masatake Matsuoka ,&nbsp;Tomohiro Onodera ,&nbsp;Koji Iwasaki ,&nbsp;Masanari Hamasaki ,&nbsp;Taku Ebata ,&nbsp;Yoshiaki Hosokawa ,&nbsp;Ryuichi Fukuda ,&nbsp;Eiji Kondo ,&nbsp;Norimasa Iwasaki","doi":"10.1016/j.jos.2024.06.014","DOIUrl":"10.1016/j.jos.2024.06.014","url":null,"abstract":"<div><h3>Background</h3><div>This study aims to evaluate the efficacy of radiation therapy in enhancing survival outcomes among elderly patients diagnosed with localized extremity soft tissue sarcomas (STSs). Furthermore, it seeks to explore whether the survival benefits conferred by radiation therapy differ according to tumor characteristics and treatment modalities.</div></div><div><h3>Methods</h3><div>We conducted a retrospective analysis using the Surveillance, Epidemiology, and End Results (SEER) database to identify patients aged 80 years and older diagnosed with localized extremity STSs. The study assessed 1498 eligible patients, analyzing cancer-specific survival (CSS) and overall survival (OS) through Kaplan-Meier survival analysis and Cox proportional hazards modeling. Propensity score matching was employed to adjust for potential confounders.</div></div><div><h3>Results</h3><div>Among the analyzed patients, 773 patients underwent radiation therapy (Radiation group), while 725 patients either did not receive radiation therapy or it was unknown if they had (No-Radiation group). The 5-year OS rate was 40% in the radiation group compared to 38% in the no-radiation group. After propensity score matching, radiation therapy was associated with a significant improvement in OS (P = 0.005, HR = 0.8, 95% CI 0.7–0.9). Subgroup analyses indicated that patients undergoing primary tumor resection benefited most from radiation therapy in terms of OS.</div></div><div><h3>Conclusion</h3><div>Radiation therapy is associated with improved overall survival in elderly patients with localized extremity STSs. These findings suggest that radiation therapy should be considered as a key component of the treatment strategy for this patient population, taking into account individual patient characteristics and comorbidities.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 3","pages":"Pages 529-534"},"PeriodicalIF":1.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141626985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patellar height changes sequentially after medial open wedge high tibial osteotomy: Evaluation using shear wave elastography","authors":"Yuki Kudo,&nbsp;Akira Maeyama,&nbsp;Tetsuro Ishimatsu,&nbsp;Taiki Matsunaga,&nbsp;Shizuhide Nakayama,&nbsp;Takuaki Yamamoto","doi":"10.1016/j.jos.2024.07.008","DOIUrl":"10.1016/j.jos.2024.07.008","url":null,"abstract":"<div><h3>Background</h3><div>This study was performed to evaluate changes in patellar tendon tissue after medial open wedge high tibial osteotomy (MOWHTO) using shear wave elastography (SWE) and to clarify the factors contributing to patellar height changes after MOWHTO.</div></div><div><h3>Methods</h3><div>The study cohort comprised 24 knees of 24 patients. Patellar tendon length, thickness, and elasticity were evaluated using SWE preoperatively, 2 weeks postoperatively, and 3, 6, and 12 months postoperatively. The Caton–Deschamps index (CDI) was also measured at these time points. Lower limb alignment and factors related to sequential changes in patellar height were evaluated.</div></div><div><h3>Results</h3><div>The CDI was significantly different between preoperatively and 2 weeks postoperatively and between 2 week postoperatively and 3, 6, and 12 months postoperatively (p &lt; 0.05 for all) The patellar tendon length at 12 months postoperatively was significantly shorter than that at 2 weeks postoperatively. The postoperative patellar tendon thickness was thicker than preoperative patellar tendon at all sites. The postoperative patellar tendon thickness significantly increased from preoperatively at middle and distal sites. The only factor associated with Δpre-post2WCDI (preCDI − post2WCDI) was ΔMPTA(medial proximal tibial angle) (postoperative MPTA – preoperative MPTA) (p = 0.042). The significant predictor of Δpost2W-post12MCDI was Δpost2W-post12 M distal elasticity (p = 0.022).</div></div><div><h3>Conclusion</h3><div>Patellar height changed sequentially after MOWHTO. The factors that caused patellar height change were related to the change in patellar tendon quality after OWHTO.</div></div>","PeriodicalId":16939,"journal":{"name":"Journal of Orthopaedic Science","volume":"30 3","pages":"Pages 478-485"},"PeriodicalIF":1.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141982553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}