International Orthopaedics最新文献

{"title":"Validation of a novel system to quantify authorship diversity in orthopaedic surgery literature","authors":"Maryam Salimi, Benjamin D. Pesante, Carrington W. Junior, Cyril Mauffrey","doi":"10.1007/s00264-024-06297-z","DOIUrl":"https://doi.org/10.1007/s00264-024-06297-z","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Purpose</h3><p>The diversity of authors in orthopaedic literature is fundamental to the distribution of unique discoveries, innovations, and advancements. The purpose of the current study was to create and validate a comprehensive Author Diversity Scoring System (ADSS) to quantify authorship diversity in orthopaedic manuscripts.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>Six items were included in the initial ADSS. The ADSS and associated survey were sent to 120 experts to evaluate the clarity, simplicity, and relevancy its components. Responses were used to validate the ADSS using Content Validity Ratio (CVR) and Content Validity Index (CVI).</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>The initial ADSS contained author gender, ethnicity, academic rank/title, country of origin of the article, affiliated institution, and the publication history of the senior/corresponding author as representative items. Subsequently, 21 experts completed the survey (response rate 17.5%). Following validation, the final ADSS included author gender, ethnicity, and region of article origin, scored cumulatively on a 0–30 point scale with increasing scores indicating greater author diversity.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>The validated ADSS scoring system quantitatively assesses manuscript author diversity.</p>","PeriodicalId":14450,"journal":{"name":"International Orthopaedics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lumbar fusion efficacy with local bone grafting and platelet-rich plasma: a clinical investigation in treating degenerative lumbar spinal stenosis in the elderly","authors":"Chaojun Wang, Fengzhou Xu, Lisha Jia, Yongqiang Liu, Shuangwei Zhang","doi":"10.1007/s00264-024-06294-2","DOIUrl":"https://doi.org/10.1007/s00264-024-06294-2","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Purpose</h3><p>The focus of this study was to comprehensively assess the clinical outcomes of lumbar fusion utilizing autogenous bone grafting and platelet-rich plasma (PRP) for the management of degenerative lumbar spinal stenosis (DLSS) in elderly individuals.</p><h3 data-test=\"abstract-sub-heading\">Method</h3><p>A cohort of 40 senior individuals diagnosed with DLSS, who underwent treatment at our hospital between January 2020 and March 2022. The control group consisted of 20 participants who underwent local bone grafting for intervertebral fusion, while the observation group comprised 20 individuals who received a combination of local bone grafting and PRP for lumbar fusion. MRI imaging was employed for a comprehensive assessment of spinal structure. The efficacy of spinal fusion was evaluated through MRI imaging. Clinical treatment outcomes were assessed using the Japanese Orthopaedic Association (JOA) and Oswestry Disability Index (ODI) scoring systems. Postoperative low back pain was quantified using a Visual Analog Scale (VAS).</p><h3 data-test=\"abstract-sub-heading\">Result</h3><p>During the final follow-up, the observation group demonstrated a significant increase in the inner diameter of the spinal canal and the height of the disc space compared to the control group (<i>P</i> &lt; 0.05).Moreover, the observation group displayed a larger spinal canal than the control group (<i>P</i> &lt; 0.05).A reduced lesion score in the bone grafting region was observed in the observation group compared to the control group during the final follow-up (<i>P</i> &lt; 0.05). Furthermore, the observation group displayed a higher intervertebral fusion continuity score than the control group (<i>P</i> &lt; 0.05).The JOA score in the observation group was significantly higher than in the control group (<i>P</i> &lt; 0.05), while the ODI score was significantly lower (<i>P</i> &lt; 0.05). Of note, the back pain VAS score in the observation group was lower than in the control group at both the three months post-surgery mark and the final follow-up (<i>P</i> &lt; 0.05).The satisfaction rate and overall satisfaction rate in the observation group were significantly higher than those in the control group (<i>P</i> &lt; 0.05), while the dissatisfaction rate in the observation group was evidently lower than in the control group (<i>P</i> &lt; 0.05).</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>In the management of DLSS in elderly individuals, the utilization of local bone grafting and PRP in lumbar spinal fusion yields notable outcomes.</p>","PeriodicalId":14450,"journal":{"name":"International Orthopaedics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the impact of surgery sequence on infection rates in hip or knee arthroplasty: does sequence matter?","authors":"Pakpoom Ruangsomboon, Onlak Ruangsomboon, Sebastian Tomescu, Cristal Rahman, Daniel Pincus, Bheeshma Ravi","doi":"10.1007/s00264-024-06317-y","DOIUrl":"https://doi.org/10.1007/s00264-024-06317-y","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Purpose</h3><p>The potential influence of surgical sequence of elective hip-and-knee reconstructive surgery in relation to an infection-related procedure on postoperative infection rates is not clearly understood. Therefore, we aimed to examine the impact of surgical sequence on the incidence of postoperative infections within one-year and the longest available follow-up period in patients undergoing hip-and-knee reconstructive surgery.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>A case-control study with propensity matching was utilized to examine elective surgeries conducted at Sunnybrook Holland Orthopaedic &amp; Arthritic centre, Toronto, Canada between 2015 and 2018. We determined and categorized them based on their operating room (OR) sequence in relation to an infected case; the cases were those performed right after (post-infection cohort), and the controls were those performed before an infection-related procedure in the same OR (pre-infection cohort). We employed survival analysis to compare the infection incidence within one year and at the longest available follow-up among the propensity-matched cohort.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>A total of 13,651 cases were identified during the four year period. We successfully matched 153 cases (21 post-infection and 132 pre-infection) using propensity scores. Demographic and clinical characteristics were balanced through matching. Kaplan-Meier survival analysis showed no significant difference in infection-free survival within one year and at a median follow-up of 2.2 years [interquartile range 0.9-5.0] between surgeries conducted before and after infected cases (both log-rank p-values = 0.4). The hazard ratios for infection within one year and the longest follow-up period were both 0.37 [95%Confidence Interval 0.03–4.09, <i>p</i> = 0.418], as no more events occurred after one year.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>The sequence of surgical procedures, whether or not an elective arthroplasty or lower limb reconstructive procedure occurs before or after an infection-related case in the same OR, does not significantly affect postoperative infection rates. This finding supports the efficacy of the current infection control measures and suggests a reconsideration of surgical scheduling standards.</p>","PeriodicalId":14450,"journal":{"name":"International Orthopaedics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing functional and radiological outcomes: open reduction and internal fixation vs. minimally invasive plate osteosynthesis for humerus shaft fractures - a prospective comparative study","authors":"Natarajan Sugumar, Naveen Sathiyaseelan, J. Raja Purushothaman, S. Natarajan","doi":"10.1007/s00264-024-06307-0","DOIUrl":"https://doi.org/10.1007/s00264-024-06307-0","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Purpose</h3><p>To analyse and compare the functional and radiological outcome of different methods of surgical management of humerus shaft fractures in 30 patients treated by conventional open reduction and internal fixation (ORIF) or minimally invasive plate osteosynthesis (MIPO).</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>This prospective interventional study was conducted among 30 patients by dividing into two equal groups over one year and six months. All patients were followed up for a minimum of at least six months. Radiological outcome was assessed using fracture union in serial radiographs and functional outcome was measured using DASH scoring.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>The majority of patients (26.7%) were between 18 to 30 years, overall mean age was 44.4 years, most of the patients (50%) had 12A3 AO type fractures, and 73.3% of patients had injuries following two-wheeler road traffic accidents. On comparing multiple factors, we found a statistically significant reduction of intra-operative blood loss in MIPO compared to ORIF. Though time taken for fracture union, functional outcome and complication rate were better in MIPO when compared to ORIF, these differences were not statistically significant. two patients in the MIPO group and one patient in the ORIF group had a peri-implant fracture following slip and fall again within the study period and underwent Revision plating. Excluding cases of peri-implant fractures, out of 13 patients in the MIPO group, only one patient developed fracture non-union. Of 14 patients in the ORIF group, three developed fracture non-union.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>MIPO is a safe, reproducible, efficient and good if not a better alternative to ORIF as it offers good radiological and functional outcomes with advantages of minimal soft tissue damage, minimal blood loss, better cosmesis, no incidence of radial nerve palsy and with few concerns such as the need for fluoroscopy, and a learning curve.</p>","PeriodicalId":14450,"journal":{"name":"International Orthopaedics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Injection therapy in professional footballers","authors":"Arwa Jader, Rafael José Melo Cué, Iacopo Romandini, Bashir A. Zikria, Emmanouil Papakostas, Theodorakys Marín Fermín","doi":"10.1007/s00264-024-06301-6","DOIUrl":"https://doi.org/10.1007/s00264-024-06301-6","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Background</h3><p>Injection therapy offers a minimally invasive approach for symptomatic relief that allows concurrent training, limiting time loss and providing a faster recovery. However, there is a lack of scientific evidence to support it, and there are controversies about its use. The present narrative review aims to present the available scientific literature on injection therapies in professional footballers (PF), highlighting the advantages and disadvantages of its use in the most common injuries.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>The authors searched and reviewed contemporary literature on injection therapies in PF in electronic databases, summarizing them in a narrative review.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Injection therapies such as hyaluronic acid and PRP have shown an adequate safety profile that allows their use. Current evidence suggests that hyaluronic acid injections are a valid option for managing symptomatic cartilage injuries. At the same time, PRP injections have failed to prove beneficial in treating muscle injuries and should be avoided until further evidence proves the opposite. Yet, PRP may have potential use in partial ACL injuries, anterior inferior tibiofibular ligament injuries (ankle syndesmosis), and fifth metatarsal fractures and needs further study. Due to the long-term health repercussions, other injection therapies should be preferred over corticosteroids in PF.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>There is a paucity of evidence on the use and benefits of injection therapies in PF despite its extensive use among physicians. Viscosupplementation may have a role in improving symptomatic cartilage injuries. In contrast, PRP injection therapy needs further high-quality clinical trials to assess its role in PF sports injuries.</p>","PeriodicalId":14450,"journal":{"name":"International Orthopaedics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of interleukin-6 in synovial fluid in periprosthetic joint infection of the elbow.","authors":"Shihong Ren, Zhan Wang","doi":"10.1007/s00264-024-06323-0","DOIUrl":"https://doi.org/10.1007/s00264-024-06323-0","url":null,"abstract":"","PeriodicalId":14450,"journal":{"name":"International Orthopaedics","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142287345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of congenital spinal stenosis on the outcome of three-level anterior cervical discectomy and fusion in patients with cervical spondylotic myelopathy: a retrospective study","authors":"Yibo Liu, Zheng Zeng, Shuanghe Liu","doi":"10.1007/s00264-024-06278-2","DOIUrl":"https://doi.org/10.1007/s00264-024-06278-2","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Purpose</h3><p>To investigate whether congenital cervical spinal stenosis (CCSS) affects the outcome of three-level anterior cervical discectomy and fusion (ACDF) in patients with cervical spondylotic myelopathy (CSM).</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>One hundred seventeen patients with CSM who underwent three-level ACDF between January 2019 and January 2023 were retrospectively examined. Patients were grouped according to presence of CCSS, which was defined as Pavlov ratio ≤ 0.75. The CCSS and no CCSS groups comprised 68 (58.1%) and 49 (41.9%) patients, respectively.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>The Japanese Orthopaedic Association (JOA) score did not significantly differ between the two groups at any postoperative time point (<i>p</i> &gt; 0.05). The JOA improvement rate was lower in the CCSS group 1 month after surgery (41.7% vs. 45.5%, <i>p</i> &lt; 0.05), but showed no difference at any follow-up time point after one month. Multivariate logistic regression identified preoperative age (OR = 10.639), JOA score (OR = 0.370), increased signal intensity (ISI) in the spinal cord on T2-weighted MRI (T2-WI) (Grade 1: OR = 6.135; Grade 2: OR = 29.892), and degree of spinal cord compression (30-60%: OR = 17.919; ≥60%: OR = 46.624) as independent predictors of a poor one year outcome (JOA recovery rate &lt; 50%).</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>Although early JOA improvement is slower in the CCSS group, it does not affect the final neurological improvement at 1 year. Therefore, CCSS should not be considered a contraindication for three-level ACDF in patients with CSM. The main factors influencing one year outcome were preoperative age, JOA score, ISI grade, and degree of spinal cord compression.</p>","PeriodicalId":14450,"journal":{"name":"International Orthopaedics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Induced membrane technique for malignant bone tumours of the humerus","authors":"Tristan Langlais, Coline Ducrot, Pierre Mary, Raphael Vialle, Pierre-Alban Bouche, Malo Le Hanneur, Franck Fitoussi","doi":"10.1007/s00264-024-06313-2","DOIUrl":"https://doi.org/10.1007/s00264-024-06313-2","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Purpose</h3><p>The aim of this study was to report on mid- to long-term results following large humeral tumoral resection and reconstruction with the induced-membrane technique in skeletally immature patients suffering from primary malignant bone tumours.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>A retrospective analysis identified all children who underwent the two stages of a humeral reconstruction using the induced-membrane technique for primary malignant humerus tumours between 2002 and 2020. Functional assessment was conducted by an independent observer using the Musculoskeletal Tumor Society (MSTS) scoring system for the upper limb. Radiological assessment was performed by two independent observers and the healing index was calculated (i.e., months/cm).</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Eight adolescents (5 osteosarcomas and 3 Ewing sarcoma), with a mean age of 14.2 years (SD = 2.7), were included. The mean length of the bone resection was 17.4 cm (SD = 3.8), and the mean delay of the resection and reconstruction stages was 9.4 months (SD = 4). The mean follow-up was 6.6 years (SD = 4.3). The mean MSTS score was 77.4% and the global average healing index was 1.04 months/cm (SD = 2.2). Four complications (i.e., prominence device, fracture, aseptic pseudarthrosis, radial palsy) and one local recurrence were observed in four patients, requiring four unplanned surgical procedures in three patients. One patient died fourteen years after the initial treatment due to a lung recurrence.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>The induced-membrane technique is an effective and safe alternative for reconstructing large humeral bone defects after tumour resection in adolescents. Although this is a two-stage technique, it gives good functional results comparable to other strategies found in the literature.</p><h3 data-test=\"abstract-sub-heading\">Level of evidence</h3><p>IV.</p>","PeriodicalId":14450,"journal":{"name":"International Orthopaedics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trend, disparities, and projection analysis of public data on shoulder fractures in Sweden: a retrospective analysis of two hundred and sixty two thousand, four hundred and forty four fractures","authors":"Martin Magnéli, Michael Axenhus","doi":"10.1007/s00264-024-06287-1","DOIUrl":"https://doi.org/10.1007/s00264-024-06287-1","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Purpose</h3><p>We aimed to identify temporal trends, seasonal changes and regional differences in shoulder fractures in Sweden during 2008–2022.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>Data from the Swedish National Board of Health and Welfare were used to assess incidence rates per 100,000 people, categorized by sex, age, and month.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Results showed an average of 17,496 fractures annually, with a decline in 2020 followed by a resurgence in 2021–2022. Elderly women, especially those over 65, had higher rates. Winter months exhibited increased incidence.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>Projection analysis indicated a gradual decrease in fractures over the next 15 years. Understanding these patterns can inform preventive strategies and resource allocation for shoulder fractures in Sweden.</p>","PeriodicalId":14450,"journal":{"name":"International Orthopaedics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of Tibetan ethnicity and residence altitude on complications during total knee arthroplasty and difficulties of measurement of perioperative blood loss","authors":"Wenyu Jiang, Hong Xu, Xing Liu, Huansheng Liu, Yucan Ju, Jinwei Xie, Qiang Huang, Zeyu Huang, Fuxing Pei","doi":"10.1007/s00264-024-06312-3","DOIUrl":"https://doi.org/10.1007/s00264-024-06312-3","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Purpose</h3><p>Tibetan patients undergoing total knee arthroplasty (TKA) have greater fluctuations in perioperative haemoglobin levels and blood hypercoagulability. This study was to investigate whether ethnicity and altitude affect perioperative blood loss and the risk of complications after TKA.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>We retrospectively enrolled 1,116 patients undergoing TKA for knee osteoarthritis at our hospital between January 2016 and September 2021. We divided patients into four groups according to whether they were of Tibetan or Han ethnicity and whether they lived above or below 2500 m above sea level. Primary outcomes were total, intraoperative, and hidden blood losses, while secondary outcomes were complications and homologous transfusion. Factors associated with increased blood loss were analyzed by multivariate regression.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Total blood loss was higher among patients residing at high altitude compared with lower altitude, whether they were of Han (794.6 mL vs. 667.2 mL, <i>P</i> = 0.020) or Tibetan (904.4 mL vs. 663.8 mL, <i>P</i> &lt; 0.001). Total blood loss was similar between the two ethnic groups at the same altitude. Altitude, but not Tibetan ethnicity, remained associated with increased blood loss after being analyzed by multivariate regression. Complications among the four groups were generally similar, although the frequency of calf muscular venous thrombosis was higher among Tibetan patients, while the frequency of blood transfusion was higher among Han subjects.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>Our findings indicate that residence at high altitude, but not ethnicity, may contribute to increased total blood loss during TKA. Thrombotic complications were more frequent among Tibetan than Han patients.</p>","PeriodicalId":14450,"journal":{"name":"International Orthopaedics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142204691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}