BACKGROUND: Obesity is a risk factor for end-stage hip osteoarthritis (OA). While total hip arthroplasty (THA) is commonly performed to reduce pain and improve function associated with OA, obesity has been associated with an increased risk of complications after THA. Although bariatric surgery may also be utilized to reduce weight, the impact of bariatric surgery on THA outcomes remains inadequately understood.
METHODS: This retrospective cohort analysis utilized multicenter electronic medical record data ranging from 2003 to 2023. Patients who have obesity who underwent THA were stratified based on prior bariatric surgery. The final bariatric cohort comprised 451 patients after propensity score matching. Complication rates and revision risks were compared between cohorts at six, 24, and 72 months. Additional analysis stratified patients by interval between bariatric surgery and THA.
RESULTS: At six-month follow-up, the bariatric cohort had significantly lower risks of surgical site infection (SSI), wound dehiscence, and deep vein thrombosis (DVT). At 24 months, the bariatric cohort had a lower risk of DVT. At 72 month follow-up, the bariatric cohort had reduced rates of revision, mortality, cardiac morbidity, and Clavien-Dindo grade IV complications.
CONCLUSIONS: Obese patients who underwent bariatric surgery prior to THA experienced reduced medical complications at all time points and reduced rates of revision at 72 months relative to a matched cohort who did not undergo bariatric surgery.

Femoral nerve injury is a rare but devastating complication of direct anterior approach total hip arthroplasty that occurs in about 1% of the cases and could potentially lead to debilitating loss of knee extension. In this case report, we present a case of femoral nerve injury following direct anterior approach hip arthroplasty with an inability to extend the affected knee, gait instability, and multiple falls. For this patient, an innovative functional adductor magnus muscle transfer was performed to restore knee extension. At 6 months after surgery, the patient\'s knee extension was partly restored, and ambulation was significantly improved.

Despite the societal progress made in recent years, gender discrimination is still common in healthcare, especially in some surgical specialties such as orthopaedics. In Brazil, where the participation of women in the medical profession has been increasing, little is known about women\'s perceptions on the issue of gender discrimination. This study aims to examine women orthopaedic surgeons\' experiences in dealing with conflict in the workplace and contextualize the impact that gender discrimination has had or currently has on their careers and well-being. As a secondary objective, the work seeks to understand whether there are differences in the perception of the issue among practicing women orthopaedic surgeons and those in training. For a cross-sectional qualitative study, a survey was distributed exclusively to 300 practicing orthopaedic surgeons and orthopaedists in training (residents and fellows). A total of 99 women participated in the survey, of whom 66 were practicing orthopaedic surgeons and 33 were orthopaedists in training. The study showed that women orthopaedic surgeons in training in Brazil have a lower number of publications and a moderate level of involvement in academic society activity. In addition, orthopaedic surgeons in training experience a statistically significantly higher number of conflicts in the workplace. The comments from the questionnaires highlighted the physical and psychological consequences arising from these situations of professional conflict, most frequently occurring with orthopaedic surgeons who are men. Our findings indicate that respondents expressed a feeling of inequality towards women in the workplace, ultimately reducing the level of job satisfaction among female orthopaedic surgeons, which may contribute to disinterest and abandonment of the specialty. The results of this work support recent evidence that there is an implicit and often overlooked bias against the participation of women and ethnic minorities in the orthopaedic community in Brazil.

BACKGROUND: Anaemia, blood loss, and blood transfusion are critical aspects of patient care in major orthopaedic surgery. We assessed hospital adherence to guideline-recommended Patient Blood Management (PBM) care, analysed variations between hospitals, and validated two composite indicators of hospital PBM performance in patients undergoing total knee arthroplasty (TKA) or total hip arthroplasty (THA).
METHODS: This retrospective cohort study included all primary TKA and THA procedures performed during 2021 across 39 hospitals in Spain. We assessed hospital adherence to key guideline-recommended PBM interventions using nine individual quality indicators and two types of composite quality indicators (cQIs): opportunity-based (cQI1) and all-or-none (cQI2). We validated these cQIs by analysing their associations with the adjusted total transfusion index using linear regression.
RESULTS: We included 8561 patient episodes from 33 hospitals in the analysis. Delivery of PBM care was similar for TKA and THA. Patients received 62% of the analysed PBM interventions and only 12% of patients underwent the full PBM pathway. Higher hospital cQIs scores were associated with a lower adjusted total transfusion index, both in TKA and THA. The greatest association was found for cQI1 in THA patients (β=-1.18 [95% confidence interval -2.00 to -0.36]; P=0.007).
CONCLUSIONS: Hospital adherence to guideline-recommended patient blood management care in total hip and knee arthroplasty was suboptimal and varied across centres. Using data that are widely available in hospitals, quality indicators and composite scores could become valuable tools for patient blood management monitoring and comparisons between healthcare organisations.

UNASSIGNED: Posterior cruciate ligament (PCL) tears in young children are rare and optimal treatment is poorly described. Diagnosis may prove challenging as young children may not be able to verbalize a complete history of injury, may be difficult to examine, and plane film radiographs often appear within normal limits. Surgical treatment carries a risk of physeal arrest, but non-operative treatment may lead to recurrent instability and pain.
UNASSIGNED: We present a case report of a fouryear- old child with a PCL avulsion off the femoral insertion who received an open reduction and internal fixation (ORIF) with combined arthroscopic synovial debridement. We performed a literature review which compared the mechanism, location, concomitant injuries, work up and management of PCL injuries in children under the age of ten compared to adolescents and adults.
UNASSIGNED: Nineteen months following surgery, physical examination revealed full knee range of motion and return to baseline function. Imaging studies confirmed there was no evidence of physeal arrest.
UNASSIGNED: ORIF with arthroscopy can be an effective method to treat PCL avulsions in children under the age of 10 years. This is similar to other case reports which reported positive outcomes with ORIF in this population. Large studies are needed to best understand optimal treatment modalities for PCL injuries in very young children. Level of Evidence: IV.

UNASSIGNED: Artificial intelligence (AI) in medicine has primarily focused on diagnosing and treating diseases and assisting in the development of academic scholarly work. This study aimed to evaluate a new use of AI in orthopaedics: content generation for professional medical education. Quality, accuracy, and time were compared between content created by ChatGPT and orthopaedic surgery clinical fellows.
UNASSIGNED: ChatGPT and 3 orthopaedic adult reconstruction fellows were tasked with creating educational summaries of 5 total joint arthroplasty-related topics. Responses were evaluated across 5 domains by 4 blinded reviewers from different institutions who are all current or former total joint arthroplasty fellowship directors or national arthroplasty board review course directors.
UNASSIGNED: ChatGPT created better orthopaedic content than fellows when mean aggregate scores for all 5 topics and domains were compared (P ≤ .001). The only domain in which fellows outperformed ChatGPT was the integration of key points and references (P = .006). ChatGPT outperformed the fellows in response time, averaging 16.6 seconds vs the fellows\' 94 minutes per prompt (P = .002).
UNASSIGNED: With its efficient and accurate content generation, the current findings underscore ChatGPT\'s potential as an adjunctive tool to enhance orthopaedic arthroplasty graduate medical education. Future studies are warranted to explore AI\'s role further and optimize its utility in augmenting the educational development of arthroplasty trainees.

An unsung hero of American orthopedic surgery is the largely forgotten Dr. Newton Melman Shaffer (1846-1928). Upon graduating from medical school at New York University, Shaffer began his career training at the Hospital for the Ruptured and Crippled in 1867. Shaffer then went on to practice at St. Luke\'s Hospital and New York Orthopaedic Dispensary and Hospital where he became chief. Here, Shaffer made major contributions to the field in treating clubfoot and tuberculosis. He then declared orthopedics as a separate entity from general surgery at the 10th International Medical Congress. He helped start the American Orthopaedic Association to push for the recognition of American orthopedics to the international community. In 1900, Shaffer opened the first state-run hospital for underprivileged children requiring rehabilitation. During his career, Shaffer advocated for conservative orthopedic treatments, aided in the invention of medical devices, contributed largely to academic orthopedics, and successfully advocated for the inception of the field of orthopedic surgery.

Introduction Osteoarthritis (OA) is an age-related degenerative joint disease. There is a 25% risk of symptomatic hip OA in patients who live up to 85 years of age. It can impair a person\'s daily activities and increase their reliance on healthcare services. It is primarily managed with education, weight loss and exercise, supplemented with pharmacological interventions. Poor health literacy is associated with negative treatment outcomes and patient dissatisfaction. A literature search found there are no previously published studies examining the readability of online information about hip OA. Objectives To assess the readability of healthcare websites regarding hip OA. Methods The terms \"hip pain\", \"hip osteoarthritis\", \"hip arthritis\", and \"hip OA\" were searched on Google and Bing. Of 240 websites initially considered, 74 unique websites underwent evaluation using the WebFX online readability software (WebFX®, Harrisburg, USA). Readability was determined using the Flesch Reading Ease Score (FRES), Flesch-Kincaid Reading Grade Level (FKGL), Gunning Fog Index (GFI), Simple Measure of Gobbledygook (SMOG), Coleman-Liau Index (CLI), and Automated Readability Index (ARI). In line with recommended guidelines and previous studies, FRES >65 or a grade level score of sixth grade and under was considered acceptable. Results The average FRES was 56.74±8.18 (range 29.5-79.4). Only nine (12.16%) websites had a FRES score >65. The average FKGL score was 7.62±1.69 (range 4.2-12.9). Only seven (9.46%) websites were written at or below a sixth-grade level according to the FKGL score. The average GFI score was 9.20±2.09 (range 5.6-16.5). Only one (1.35%) website was written at or below a sixth-grade level according to the GFI score. The average SMOG score was 7.29±1.41 (range 5.4-12.0). Only eight (10.81%) websites were written at or below a sixth-grade level according to the SMOG score. The average CLI score was 13.86±1.75 (range 9.6-19.7). All 36 websites were written above a sixth-grade level according to the CLI score. The average ARI score was 6.91±2.06 (range 3.1-14.0). Twenty-eight (37.84%) websites were written at or below a sixth-grade level according to the ARI score. One-sample t-tests showed that FRES (p<0.001, CI -10.2 to -6.37), FKGL (p<0.001, CI 1.23 to 2.01), GFI (p<0.001, CI 2.72 to 3.69), SMOG (p<0.001, CI 0.97 to 1.62), CLI (p<0.001, CI 7.46 to 8.27), and ARI (p<0.001, CI 0.43 to 1.39) scores were significantly different from the accepted standard. One-way analysis of variance (ANOVA) testing of FRES scores (p=0.009) and CLI scores (p=0.009) showed a significant difference between categories. Post hoc testing showed a significant difference between academic and non-profit categories for FRES scores (p=0.010, CI -15.17 to -1.47) and CLI scores (p=0.008, CI 0.35 to 3.29). Conclusions Most websites regarding hip OA are written above recommended reading levels, hence exceeding the comprehension levels of the average patient. Readability of these resources must be improved to improve patient access to online healthcare information which can lead to improved patient understanding of their own condition and treatment outcomes.

Venous thromboembolism (VTE) is a serious complication that can arise during and after hospitalization, particularly following surgery under general anaesthesia. Particularly at risk are major orthopaedic surgical procedures such as elective knee or hip replacement and the treatment of hip fractures. In these patients, current guidelines recommend (low or low-moderate level of evidence) aspirin as a possible alternative to anticoagulant therapy for the prophylaxis of long-term venous thromboembolism after an initial period with anticoagulant drugs. Several randomized trials and meta-analyses demonstrate no significant differences in the risk of VTE when comparing aspirin with anticoagulants. However, it must be considered that most recommendations are based on elective orthopaedic surgery and that trials after fractures have excluded patients at high thrombotic risk. Consequently, the overall incidence of major clinical events (death and pulmonary embolism) was ∼1% with wide confidence margins in even large non-inferiority studies. The incidence of asymptomatic VTE, especially distal, appears to be higher with aspirin. Patient preference and lower costs could play an important role in the choice in favour of aspirin.

Total ankle arthroplasty is the gold standard surgical treatment for severe ankle arthritis and fracture. However, revision surgeries due to the in vivo failure of the ankle implant are a serious concern. Extreme bone density loss due to bone remodelling is one of the main reasons for in situ implant loosening, with aseptic loosening of the talar component being one of the primary reasons for total ankle arthroplasty revisions. This study is aimed at determining the performance and potential causes of failure of the talar component. Herein, we investigated the stress, strain, and bone density changes that take place in the talus bone during the first 6 months of bone remodelling due to the total ankle arthroplasty procedure. Computed tomography scans were used to generate the 3D geometry used in the finite element (FE) model of the Intact and implanted ankle. The Scandinavian Total Ankle Replacement (STAR™) CAD files were generated, and virtual placement within bone models was done following surgical guidelines. The dorsiflexion physiological loading condition was investigated. The cortical region of the talus bone was found to demonstrate the highest values of stress (5.02 MPa). Next, the adaptive bone remodelling theory was used to predict bone density changes over the initial 6-month post-surgery. A significant change in bone density was observed in the talus bone due to bone remodelling. The observed quantitative changes in talus bone density over 6-month period underscore potential implications for implant stability and fracture susceptibility. These findings emphasise the importance of considering such biomechanical factors in ankle implant design and clinical management.