Allopathic and Osteopathic Residents Perform Similarly on the Orthopedic In-Training Examination (OITE).

INTRODUCTION: There is a bias in the medical community that allopathic training is superior to osteopathic training, despite the lack of substantiation. The orthopedic in-training examination (OITE) is a yearly exam evaluating educational advancement and orthopedic surgery resident\u27s scope of knowledge. The purpose of this study was to compare OITE scores between doctor of osteopathic medicine (DO) and medical doctor (MD) orthopedic surgery residents to determine whether any appreciable differences exist in the achievement levels between the 2 groups. METHODS: The American Academy of Orthopedic Surgeons 2019 OITE technical report, which reports the scores from the 2019 OITE for MDs and DOs, was evaluated to determine OITE scores for MD and DO residents. The progression of scores obtained during various postgraduate years (PGY) for both groups was also analyzed. MD and DO scores throughout PGY 1-5 were compared with independent t-tests. RESULTS: PGY-1 DO residents outperformed MD residents on the OITE (145.8 vs 138.8, p \u3c 0.001). The mean scores achieved by DO and MD residents during PGY-2 (153.2 vs 153.2), 3 (176.2 vs 175.2), and 4 (182.0 vs 183.7) did not differ (p = 0.997, 0.440, and 0.149, respectively). However, for PGY-5, the mean scores for MD residents (188.6) were higher than those of DO residents (183.5, p \u3c 0.001). Both groups had trends of improvement seen throughout PGY 1 to 5 years, with both groups showing an increase in average PGY scores when compared to each preceding PGY. CONCLUSION: This study provides evidence that DO and MD orthopedic surgery residents perform similarly on the OITE within PGY 2 to 4, thus displaying equivalencies in orthopedic knowledge within the majority of PGYs. Program directors at allopathic and osteopathic orthopedic residency programs should take this into account when considering applicants for residency

Comparing Sex-Specific Outcomes After Rotator Cuff Repair: A Meta-analysis

A grant from the One-University Open Access Fund at the University of Kansas was used to defray the author's publication fees in this Open Access journal. The Open Access Fund, administered by librarians from the KU, KU Law, and KUMC libraries, is made possible by contributions from the offices of KU Provost, KU Vice Chancellor for Research & Graduate Studies, and KUMC Vice Chancellor for Research. For more information about the Open Access Fund, please see http://library.kumc.edu/authors-fund.xml.Background: Rotator cuff repair (RCR) is a well-studied procedure. However, the impact of patient sex on outcomes after RCR has not been well studied. Purpose: To conduct a systematic review and meta-analysis of sex-based differences in outcomes after RCR and to record what proportion of studies examined this as a primary or secondary purpose. Study Design: Systematic review; Level of evidence, 4. Methods: A systematic review was performed using multiple databases according to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Studies were included if they were written in English, performed on humans, consisted of patients who underwent RCR, evaluated at least 1 of the selected outcomes based on patient sex, and had statistical analysis available for their sex-based claim. Excluded were case reports, review studies, systematic reviews, cadaveric studies, and studies that did not report at least 1 sex-specific outcome or included certain other injuries associated with a rotator cuff injury. Results: Of 9998 studies screened and 1283 full-text studies reviewed, 11 (0.11%) studies with 2860 patients (1549 male and 1329 female) were included for quantitative analysis. None of these 11 studies examined the impact of patient sex on outcomes after RCR as a primary outcome. Postoperative Constant-Murley scores were analyzed for 7 studies. Male patients had a postoperative Constant-Murley score of 76.77 ± 15.94, while female patients had a postoperative Constant-Murley score of 69.88 ± 17.02. The random-effects model showed that male patients had significantly higher scores than female patients, with a mean difference of 7.33 (95% CI, 5.21-9.46; P < .0001). Analysis of retear rates in 5 studies indicated that there was no difference in the retear rate between sexes (odds ratio, 0.91 [95% CI, 0.49-1.67]). Conclusion: Female patients had lower postoperative Constant-Murley scores compared with male patients, but there was no difference in the retear rate. However, these results were based on an analysis of only 11 studies. The paucity of studies examining the impact of sex suggests that more research is needed on the impact of patient sex on outcomes after RCR

Return to Sport After Turf Toe Injuries: A Systematic Review and Meta-analysis

A grant from the One-University Open Access Fund at the University of Kansas was used to defray the author's publication fees in this Open Access journal. The Open Access Fund, administered by librarians from the KU, KU Law, and KUMC libraries, is made possible by contributions from the offices of KU Provost, KU Vice Chancellor for Research & Graduate Studies, and KUMC Vice Chancellor for Research. For more information about the Open Access Fund, please see http://library.kumc.edu/authors-fund.xml.Background: The prevalence of turf toe injuries has increased in recent years. However, uncertainty remains as to how to optimally treat turf toe injuries and the implications that the severity of the injury has on outcomes, specifically return to sport (RTS). Purpose: To determine RTS based on treatment modality and to provide clinicians with additional information when comparing operative versus nonoperative treatment of turf toe injuries in athletes. Study Design: Systematic review; Level of evidence, 4. Methods: A systematic review and meta-analysis was performed using the PubMed/Ovid MEDLINE/PubMed Central databases (May 1964 to August 2018) per PRISMA-IPD (Preferred Reporting Items for Systematic Reviews and Meta-Analyses of Individual Participant Data) guidelines. RTS, treatment, severity of injury, athletic position, and sport were recorded and analyzed. Results: Of 858 identified studies, 12 met the criteria for the final meta-analysis. The studies included 112 athletes sustaining a total of 121 turf toe injuries; 63 (52.1%) of these injuries were treated surgically, while 58 (47.9%) were treated nonoperatively, and 53.7% were classified by the grade of injury (grade I, n = 1; grade II, n = 9; grade III, n = 55). Overall, 56 (46.3%) injuries could not be classified based on the data provided and were excluded from the final analysis. The median time to RTS for patients treated nonoperatively was 5.85 weeks (range, 3.00-8.70 weeks) compared with 14.70 weeks (range, 6.00-156.43 weeks) for patients treated surgically (P < .001); however, there was variability in the grade of injury between the 2 groups. Similarly, patients who sustained grade II injuries returned to sport more quickly (8.70 weeks) than patients who had a grade I (13.04 weeks) or grade III injury (16.50 weeks) (P = .016). The amount of time required to RTS was significantly influenced by the athlete’s level of play (16.50 weeks for both high school and college levels; 14.70 weeks for professional level) (P = .018). Conclusion: The time to RTS for an athlete who suffers from a turf toe injury is significantly influenced by the severity of injury and the athlete’s level of competition. Professional athletes who suffer from turf toe injuries RTS sooner than both high school and college athletes. However, there are a limited number of high-level studies evaluating turf toe injuries in the athletic population. Further research is necessary to clearly define the appropriate treatment and RTS protocols based on sport, position, and level of play

Sex-Specific Outcomes After Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-analysis

A grant from the One-University Open Access Fund at the University of Kansas was used to defray the author's publication fees in this Open Access journal. The Open Access Fund, administered by librarians from the KU, KU Law, and KUMC libraries, is made possible by contributions from the offices of KU Provost, KU Vice Chancellor for Research & Graduate Studies, and KUMC Vice Chancellor for Research. For more information about the Open Access Fund, please see http://library.kumc.edu/authors-fund.xml.Background: Despite the significant difference between men and women in incidence of anterior cruciate ligament (ACL) injuries, there is a paucity of consistent information on the influence of patient sex on outcomes after ACL reconstruction. A previous meta-analysis has demonstrated that female patients have worse outcomes with regard to laxity, revision rate, Lysholm score, and Tegner activity score and are less likely to return to sports (RTS). Purpose: To conduct a systematic review and meta-analysis to evaluate and compare sex-specific outcomes after ACL reconstruction. Study Design: Systematic review; Level of evidence, 4. Methods: A systematic review was performed using PubMed, PubMed Central, Embase, OVID, and Cochrane databases per PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. The following search terms were used: “anterior cruciate ligament reconstruction” OR “ACL reconstruction” OR “anterior cruciate ligament” OR “ACL” AND “gender” OR “sex” OR “male” OR “female” AND “outcome” AND “2015-Present” to gather all relevant articles between 2015 and 2020. A risk-of-bias assessment and quality assessment was conducted on included studies. Results: Of 9594 studies initially identified, 20 studies with 35,935 male and 21,455 female patients were included for analysis. The 7 studies reporting International Knee Documentation Committee (IKDC) scores showed that male patients had statistically significantly higher postoperative scores (mean difference, 3.02 [95% CI, 1.19-4.84]; P< .01; I 2 = 66%), and 7 studies that reported the rate of ACL revision showed there was no significant difference between male and female patients (odds ratio, 0.85 [95% CI, 0.45-1.60]; P = .61; I 2 = 94%). The 7 studies that reported rates of rerupture showed that males were significantly more likely than females to have a graft rerupture (odds ratio, 1.35 [95% CI, 1.22-1.50]; P < .01; I 2 = 0%). Male patients reported a higher RTS rate than did their female counterparts (59.82% compared with 42.89%); however, no formal statistical analysis could be done because of the variability in reporting techniques. Conclusion: Male and female patients with ACL injuries demonstrated similar outcomes regarding their rates of revision; however, male patients were found to have statistically significantly higher postoperative IKDC scores but at the same time higher rerupture rates. Our findings suggest that sex-based differences in outcomes after ACL reconstruction vary based on which metric is used. These results must be considered when counseling patients with ACL injuries

Sex-Based Differences in Outcomes After Hip Arthroscopic Surgery for Femoroacetabular Impingement: A Systematic Review

A grant from the One-University Open Access Fund at the University of Kansas was used to defray the author's publication fees in this Open Access journal. The Open Access Fund, administered by librarians from the KU, KU Law, and KUMC libraries, is made possible by contributions from the offices of KU Provost, KU Vice Chancellor for Research & Graduate Studies, and KUMC Vice Chancellor for Research. For more information about the Open Access Fund, please see http://library.kumc.edu/authors-fund.xml.Background: While sex-based differences in outcomes after hip arthroscopic surgery for femoroacetabular impingement syndrome (FAIS) are often recorded, no studies have been dedicated to analyzing the literature as a whole. Purpose: To investigate whether sex is a predictor of outcomes in studies evaluating hip arthroscopic surgery for FAIS. Study Design: Systematic review; Level of evidence, 4. Methods: A systematic review was conducted following PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. We searched the PubMed, Embase, Cochrane, Ovid, and PubMed Central databases for English-language studies that evaluated sex-specific outcomes in human populations. The search terms used were as follows: (“Hip Arthroscopy”) AND (“Femoroacetabular Impingement” OR “FAI”) AND (“Sex” OR “Gender” OR “Male” OR “Female”). Studies with evidence levels 2 through 4 were included. The studies were then screened, followed by data extraction. Modified Harris Hip Score (mHHS) outcomes and return-to-sport (RTS) rates were recorded. These were analyzed using random-effects meta-analysis. Heterogeneity was calculated using the I2 statistic. Results: Of 256 full-text articles screened, 48 articles were included in this analysis; of these, 14 studies (29%) concluded that female sex was a negative predictor of postoperative outcomes, while 6 studies (13%) found female sex to be positive predictor. The remaining 28 studies (58%) found no sex-based differences in postoperative outcomes. Of 7 studies (416 male and 519 female) included in the mHHS analysis, 2 studies concluded that male patients had significantly higher postoperative mHHS scores. Of 6 studies (502 male and 396 female) included in the RTS analysis, 1 study concluded that male patients had a significantly higher RTS rate. Conclusion: Almost one-third of the included studies determined that female sex was a negative predictor of postoperative outcomes, 13% found female sex to be a positive predictor, and 58% found no sex-based differences. Our study illustrates an insufficiency of high-level evidence supporting sex-specific differences in outcomes after hip arthroscopic surgery, but findings indicated that the postoperative mHHS score and RTS rate may be influenced by sex

Orthopedic in-training examination question metrics and resident test performance

First administered in November 1963, the orthopedic in-training examination (OITE) is now distributed to more than 4000 residents in over 20 countries and has become important for evaluation of resident fund of knowledge. Several studies have assessed the effect of didactic programs on resident performance, but only recently has it become possible to assess detailed testtaking metrics such as time spent per question. Here, we report the first assessment of resident OITE performance utilizing this full electronic dataset from two large academic institutions. Full 2015 OITE score reports for all orthopedic surgery residents at two institutions were anonymized and compiled. For every question answered by each resident, the resident year, question content or domain, question result (correct or incorrect), and answer speed were recorded. Data were then analyzed to determine whether resident year, result, or domain affected answer speed and whether performance in each subspecialty domain varied based on resident year in training. Data was available for 46 residents and 12,650 questions. Mean answer speed for questions answered correctly, 54.0±48.1 s, was significantly faster than for questions answered incorrectly, 72.2±61.2 s (P&lt;0.00001). When considering both correct and incorrect answers, PGY-1s were slower than all other years (P&lt;0.02). Residents spent a mean of nearly 80 seconds on foot and ankle and shoulder and elbow questions, compared to only 40 seconds on basic science questions (P&lt;0.05). In education, faster answer speed for questions is often considered a sign of mastery of the material and more confidence in the answer. Though faster answer speed was strongly associated with correct answers, this study demonstrates that answer speed is not reliably associated with resident year. While answer speed varies between domains, it is likely that the majority of this variation is due to question type as opposed to confidence. Nevertheless, it is possible that in domains with more tiered experience such as shoulder, answer speed correlates strongly with resident year and percentage correct

Part I: Background and Clinical Considerations for Stress Fractures in Female Military Recruits.

IntroductionStress fractures (SFx) represent a significant proportion of musculoskeletal injuries in military recruits internationally. Incidence rates as high as 40% have been reported, varying by country and branch of military cohorts. Tibial SFx are the most common, followed by other lower extremity sites, and are related to the emphasis on running during training. SFx disproportionately affect female recruits, similarly to a disparity demonstrated in female athletes.MethodsA literature review of articles relevant to our review was conducted using PubMed, utilizing keywords stress fracture, military, recruits, diagnosis, management, treatment, prevention, epidemiology, background, and/or female. Articles older than 10 years old (prior to 2010) were not considered. Review articles were considered, but if a research article was cited by a review, the research was included directly. Articles with primary military data, members of the military as subjects, especially when female recruits were included, were strongly considered for inclusion in this review.ResultsSFx can cause medical morbidity and financial burden and can require discharge from military service. SFx management in the military has cost the United States approximately $100 million annually, which may be underestimated due to lost duty hours or medical discharge with resulting compensation. However, SFx incidence rates have been demonstrated to be reducible with concerted efforts in military cohorts.ConclusionThis review, Part I of a two-part series, provides updated information for multidisciplinary management of SFx in female military recruits. There are many similarities to management in athletes, but unique nuances of the military recruit require specific knowledge to reduce the high incidence rates of injury

Part II: Risk Factors for Stress Fractures in Female Military Recruits.

IntroductionStress fractures (SFx) represent a significant proportion of injuries in military recruits internationally. Stress fractures disproportionately affect female recruits, a disparity that has similarly been consistently demonstrated in female athletes. Stress fractures result in medical morbidity, financial burden, and medical discharge from military service. This review presents current literature regarding SFx risk factors to identify and/or mitigate in this high-risk population.MethodsA literature review was conducted using PubMed to find relevant articles. We utilized keywords stress fracture, military, recruits, female, risk factors, modifiable, non-modifiable, overuse, nutrition, and/or prevention. Articles older than 10 years (published before 2010) were not considered. Review articles were considered, but if a research article was cited by a review, the research was included directly. Articles with primary military data, members of the military as subjects, especially when female recruits were included, were strongly considered for inclusion in this review.ResultsModifiable risk factors for SFx include nutritional deficiency, especially of iron, vitamin D, and possibly calcium, poor physical fitness, suboptimal training programming for injury development and recovery, load carriage, and military footwear. Non-modifiable risk factors include female sex, greater height, lower weight and body mass index in females but lower or higher weight and body mass index in males, lower body fat percentage, and lower bone mineral density. In addition, menstrual dysfunction, low energy availability, later age at menarche, and iron deficiency pose unique risks to female recruits. Preventive measures include leadership education, programs with recovery considerations, and risk factor screening.ConclusionThis review, Part II of a two-part series, guides multidisciplinary management of military recruits, especially females, who are at risk for developing SFx. Unique nuances of the military recruit require specific knowledge to reduce high incidence rates of injury internationally

Rehabilitation and Return to Sport of Female Athletes

The increase in female participation in athletics over the past decade has been accompanied by an increase in injury rates as a result of higher demands placed on athletes. Although previous studies have shown that anatomic, biomechanical, hormonal, and psychological factors may play a role in differences between men and women that can influence injury risk in athletes, there is still a lack of understanding of sex-related mechanisms of injury, guidelines, and prevention strategies. This article provides an overview of common injuries affecting female athletes. We present guidelines for upper- and lower-extremity injury rehabilitation, focusing on considerations specific to the female athlete with the goal to facilitate a safe return to sports. Level of Evidence: Level V, expert opinion

Rehabilitation and Return to Sport of Female Athletes

The increase in female participation in athletics over the past decade has been accompanied by an increase in injury rates as a result of higher demands placed on athletes. Although previous studies have shown that anatomic, biomechanical, hormonal, and psychological factors may play a role in differences between men and women that can influence injury risk in athletes, there is still a lack of understanding of sex-related mechanisms of injury, guidelines, and prevention strategies. This article provides an overview of common injuries affecting female athletes. We present guidelines for upper- and lower-extremity injury rehabilitation, focusing on considerations specific to the female athlete with the goal to facilitate a safe return to sports. Level of Evidence: Level V, expert opinion