Nt infection in patients with inflammatory arthritis is unknown. Methods: Eight hundred and three patients undergoing 871 consecutive hip and knee arthroplasties (including sixty-one in patients with inflammatory arthritis and 810 in patients with noninflammatory arthritis) were prospectively evaluated for periprosthetic joint infection. The erythrocyte sedimentation rate, C-reactive protein level, and synovial fluid white blood-cell count with differential were obtained routinely. Receiver operating characteristic curves were used to establish optimal thresholds for the diagnosis of periprosthetic joint infection, and the area under the curve was calculated to determine the overall accuracy of these tests for patients with inflammatory compared with noninflammatory arthritis. Results: The utility of all serum and synovial tests for predicting chronic periprosthetic joint infection was similar for patients with noninflammatory and inflammatory arthritis. The optimal cutoffs in patients with noninflammatory and inflammatory arthritis were 32 and 30 mm/hr, respectively, for the erythrocyte sedimentation rate; 15 and 17 mg/L, respectively, for the C-reactive protein level; 3450/μL and 3444/μL, respectively, for the synovial fluid white blood-cell count; and 78% and 75%, respectively, for the differential. The areas under the curves were similar for the two groups (84.9% and 85.0%, respectively, for the erythrocyte sedimentation rate; 88.5% and 85.1%, respectively, for the C-reactive protein level; 94.5% and 93.8%, respectively, for the synovial fluid white blood-cell count, and 95.0% and 93.6%, respectively, for the differential). Finally, the sensitivities, specificities, negative predictive values, and positive predictive values for all tests were also comparable in both groups. The rate of periprosthetic joint infection was significantly higher following procedures in patients with inflammatory arthritis than following procedures in patients with noninflammatory arthritis (31% compared with 18%; p = 0.013). Conclusions: The erythrocyte sedimentation rate, C-reactive protein level, and synovial fluid white blood-cell count with differential are useful for diagnosing periprosthetic joint infection in patients with inflammatory as well as noninflammatory arthritis, with similar optimal cutoff values and overall testing performance. The synovial fluid white blood-cell count and differential performed the best for the diagnosis of periprosthetic joint infection. Physicians evaluating patients with a failed or painful total hip or knee arthroplasty should not assume that elevation of the erythrocyte sedimentation rate, C-reactive protein level, and synovial fluid white blood-cell count with differential is secondary to inflammatory arthropathy; rather, elevation of these markers may indicate periprosthetic joint infection, and further evaluation for infection is warranted. Level of Evidence: Diagnostic Level I. See Instructions for Authors for a complete description of levels of evidence....

Background: The concept of social belonging has been shown to be important for retention and student success in collegiate environments and general surgery training. However, this concept has never been explored in relation to medical students’ impressions of orthopaedic surgery careers. Question/purpose: To investigate medical students’ sense of belonging in orthopaedic surgery and how it affects their interest in pursuing orthopaedic surgery careers. Methods: Medical students from four medical schools were invited to participate in telephone interviews aimed to investigate medical students’ reasons for considering (or not considering) orthopaedic surgery as a future career. Students were selected using random sampling and theoretical sampling methods (selecting participants based on specific characteristics) to obtain a diversity of student perspectives across medical school year, gender, race, age, and interest in orthopaedics. Semistructured interviews with open-ended questions and face validity were used to minimize bias in the interview process. Analysis was performed using grounded theory methodology, a rigorous and well-established method for creating conceptual models based on qualitative data. The result seeks to be a data-driven (as opposed to hypothesis-driven) theory that provides perspective on human behavior. Interviews were conducted until the point of thematic saturation, defined as the point when no new ideas occur in subsequent interviews; this was achieved at 23 students (16 self-identified as women, 12 self-identified as underrepresented minorities). Results: Medical students articulated stereotypes about orthopaedic surgeons, in particular, that they were white, male, and athletic. Students derived their sense of belonging in orthopaedic surgery from how closely their identities aligned with these stereotypes about the field. Students who felt a sense of belonging described themselves as being part of a cultural “in-group,” and students who did not feel a sense of belonging felt that they were in a cultural “out-group.” Members of the in-group often reported that orthopaedic experiences further reinforced their positive identity alignment, which typically led to increased interest and continued engagement with the field. Conversely, students in the out-group reported that their exposures to orthopaedics further reinforced their lack of identity alignment, and this typically led to decreased interest and engagement. Many students in the out-group reported pursuing other specialties due to a lack of belonging within orthopaedics. Conclusion: Students derive their sense of belonging in orthopaedics based on how closely their identity aligns with stereotypes about the field. Importantly, there were gender and racial factors associated with orthopaedic stereotypes, and thus with belonging (self-identifying as the in-group). Moreover, out-group students tended not to choose orthopaedic surgery careers because of a lack of belonging in the specialty. Clinical Relevance: With knowledge of the factors that influence students’ sense of belonging, academic orthopaedic departments can focus on interventions that may lead to a more diverse pool of medical students interested in orthopaedic surgery. These might include explicitly addressing stereotypes about orthopaedics and cultivating positive identity alignment for students from diverse backgrounds through targeted mentorship fostering partnerships with affinity organizations, and creating space to talk about barriers. Targeted interventions such as these are needed to interrupt the cycle of in-group and out-group formation that, in this small multicenter study, appeared to deter students with underrepresented identities from pursuing orthopaedic surgery careers.

The treatment of choice for distal femur malignancies in skeletally immature patients remains controversial. An expandable endoprosthesis device (Repiphysis Limb Salvage System; Wright Medical Technology, Arlington, TN, USA) allows for limb preservation and noninvasive lengthening but has been associated with significant complications; however, the extent and implications of bone loss associated with this implant have not been reported. Our goals were to report (1) the 2-year minimum clinical outcomes after placement of the Repiphysis expandable prosthesis for pediatric distal femur malignancies; (2) the complications associated with this prosthesis; (3) the failure rate of this prosthesis; and (4) the revision alternatives available for salvage procedures. Between 2002 and 2010, one surgeon (SG) treated all skeletally immature patients (mean age, 10.1 years; range, 4.7–13.6 years) with distal femoral osteosarcoma using a Repiphysis expandable prosthesis. Of the 12 patients who met these criteria, two were excluded for death from disease before 2 years, and mean followup for the remaining 10 was 72 months (range, 26–119 months). Medical records were retrospectively reviewed for complications and clinical outcomes, as assessed by the Musculoskeletal Tumor Society (MSTS) scoring system. Radiographs at final followup were reviewed for bone loss and analyzed by the two senior authors (SG, WWV) to determine reconstruction options available for future revisions. MSTS scores averaged 67%, and we observed 37 implant-related complications requiring a total of 15 reoperations. Six patients underwent implant revisions with aseptic loosening being the predominant mode of failure; ultimately, four of these were converted to adult modular oncology prostheses, and two underwent total femoral replacements. Bone loss in this series was severe in terms of femoral length, cortical thinning, and metadiaphyseal compromise, and most patients will not have sufficient bone stock to permit future revision using standard stem fixation. The bone loss around the stem of this prosthesis limits subsequent revision options, often resulting in a total femoral prosthesis. Although the decision to use the Repiphysis device must be made on an individual basis, surgeons should recognize the potential for significant bone compromise limiting revision options and consider other options. Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.

Background: Orthopaedic surgery is currently the least diverse medical specialty, and there is little research on the mentorship needs for women and underrepresented minorities (URMs) in orthopaedics. The purpose of this study was to examine the roles and functions of mentorship for women and URMs in orthopaedic surgery, to understand mentorship preferences, and to elucidate barriers to mentorship in orthopaedic surgery. Methods: Members of J. Robert Gladden Orthopaedic Society and Ruth Jackson Orthopaedic Society were invited to participate. An email with an anonymous link to the survey was distributed; the survey was open for responses from September 2020 through February 2021. The survey contained free-response and quantitative items about mentorship and its impact on current activities, career path, and ways to improve mentorship. Descriptive statistics, 1-way analysis of variance, frequencies, and Fisher exact test were used to analyze survey data. Qualitative data were deidentified and analyzed using thematic analysis techniques. Results: A total of 155 participants responded to the survey, of those, 151 (98%) met criteria for analysis. Sixty-four percent of participants were women, 15% identified as Black, 4% identified as Hispanic, and 9% identified as multiracial. Eighty-five percent of respondents had a mentor in orthopaedic surgery. Mentorship was often cited as useful for exposure to role models and skills development. Medical students were most likely to consider gender concordance with their mentor important. URM respondents reported greater importance of sharing race/ethnicity with their mentor (p = 0.005). In qualitative responses, participants commented on identity-specific challenges to mentorship, lack of time and institutional support for mentorship, and the disproportionate burden of mentorship on women and URMs. Conclusions: Mentorship was highly valued among women and URMs in orthopaedic surgery across all career stages. Mentorship attracted students to orthopaedic surgery and allowed residents and surgeons to progress in the field. Sharing racial/ethnic identity in mentor-mentee relationships was important to both trainees and practicing surgeons.

Modular tapered stems have been suggested as the optimal implants for patients with severe femoral bone loss (Paprosky Type IIIB and IV) undergoing revision total hip arthroplasty (THA); however, there are few data describing survivorship and hip scores associated with this treatment. At minimum 2 years, we sought to determine the (1) survivorship of these implants; (2) radiographic evidence of osseointegration; and (3) the Harris hip scores of patients revised with a modular tapered stem for severe femoral bone loss including the complications associated with their use. Between 1999 and 2010, we performed 1124 femoral revisions; of those, 135 (12%) were performed using a modular tapered stem. General indications for use of this device included bone loss, poor quality bone, leg length discrepancy, difficulty adjusting version, proximal femoral remodeling, and ectatic medullary canals in the setting of revision THA. This report reviewed 70 of those that were performed in Type IIIB and IV femurs. Of those 70 patients, 11 had died and one was lost before 2-year followup; the remaining 58 (83%, 33 with a Type IIIB femur and 25 with a Type IV femur) were followed for a minimum of 24 months (average, 67 months; range, 24–151 months). Survivorship free from revision, radiographic analysis for signs of subsidence or stem loosening, and Harris hip scores were tallied. One patient underwent stem revision for early subsidence followed by failure of ingrowth for a survivorship free from repeat revision of 98% (57 of 58 patients). Five other stems (for a total of six [10%]) subsided early but nonetheless achieved radiographic signs of ingrowth and were not revised again. All other stems demonstrated osseointegration without subsidence and remained radiographically well fixed. In patients with surviving implants, the mean Harris hip score improved from 34 (range, 11–49) preoperatively to 74 (range, 14–100; p < 0.001) postoperatively. Overall, 15 of 58 patients (26%) experienced a complication, of whom 10 (17%) underwent reoperation. We found that modular tapered stems resulted in 98% survivorship at a mean of 67 months in patients with Type IIIB and IV femurs undergoing femoral revision, although the overall complication rate in this complex subset of patients is high. Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.