Background Arthroscopic rotator cuff repair is an effective treatment for patients with symptomatic rotator cuff tears. Ensuring timely and appropriate postoperative access to physical therapy (PT) is paramount to the achievement of optimal patient outcomes. Extended immobility due to a lack of formal rehabilitation can lead to decreased range of motion, continued pain, and potential reoperation for stiffness. The purpose of this study is to evaluate national disparities in access to PT services after rotator cuff repair between patients with private vs. Medicaid insurance. This study will further evaluate differences in access to PT services between states that have previously undergone Medicaid expansion as compared with those states which have not. Methods The American Physical Therapy Association Website was used to identify 10 physical therapy practices from the capital city in every state. Each physical therapy practice was contacted using a mock-patient script for a patient with Medicaid insurance or private (Blue Cross Blue Shield) insurance. To maintain anonymity, calls were made by two separate investigators. Univariate analysis included independent sample t-test for differences between the study groups for continuous variables. Chi square or Fisher's exact test assessed differences in discrete variables between the study groups. Results Contact was made with 465 of 510 (91.2%) physical therapy practices. Overall, 52.7% accepted Medicaid insurance, while 94.9% accepted private insurance ( P < .001). Medicaid insurance was more likely to be accepted in a Medicaid expansion state than a nonexpansion state (56.1% vs. 46.3%, P = .05). Private insurance was also more likely to be accepted in a Medicaid expansion state than a nonexpansion state (96.7% vs. 91.3%, P = .01). The time to first appointment varied more in Medicaid expansion states (private range: 0-43 days, Medicaid range: 0-72 days) than in nonexpansion states (private range: 0-11 days, medicaid range: 0-10 days). Conclusion Significantly fewer PT practices accepted Medicaid insurance nationally compared with private insurance, which suggests that patients with Medicaid insurance have greater difficulty accessing PT after rotator cuff repair in the United States compared with patients with private insurance. While Medicaid insurance was more likely to be accepted in a Medicaid expansion state, this finding was only borderline significant, which indicates that patients in Medicaid expansion states are still having difficulty accessing PT, despite efforts to expand government insurance coverage to improve access to care. Orthopedic surgeons should counsel their patients with Medicaid insurance to seek out PT as early as possible in the postoperative period to avoid delays in rehabilitation.

Background: The purpose of the present study was to perform the first examination of the utility of p values and the degree of statistical fragility in the hip arthroscopy literature by applying both the Fragility Index (FI) and the Fragility Quotient (FQ) to dichotomous comparative trials. We hypothesized that dichotomous comparative trials evaluating categorical outcomes in the hip arthroscopy literature are statistically fragile. Methods: The PubMed and MEDLINE databases were queried from 2008-2018 for comparative studies evaluating dichotomous data in the hip arthroscopy literature. The present analysis included both randomized controlled trials (RCTs) and non-RCTs in which dichotomous data and associated p values were reported. Fragility analysis was performed with use of the Fisher exact test until an alteration of significance was determined. Results: Of the 5,836 studies screened, 4,156 met the search criteria, with 52 comparative studies included for analysis. One hundred and fifty total outcome events with 33 significant (p < 0.05) outcomes and 117 nonsignificant (p ≥ 0.05) outcomes were identified. The final FI incorporating all 150 outcome events from 52 comparative studies was only 3.5 (interquartile range, 2 to 6), with an associated FQ of 0.032 (interquartile range, 0.017 to 0.063). Twenty-two studies (42.3%) either failed to report loss to follow-up (LTF) data or reported LTF greater than the overall FI of 3.5. Conclusions: The peer-reviewed hip arthroscopy literature may not be as stable as previously thought, as the sole reliance on a threshold p value has proven misleading. We therefore recommend reporting of the FI and FQ, in conjunction with p values, to aid in the evaluation and interpretation of statistical robustness and quantitative significance in future comparative hip arthroscopy studies.

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Background: Arthrofibrosis after anterior cruciate ligament reconstruction (ACLR) is a notable but uncommon complication of ACLR. To improve range of motion after ACLR, aggressive physical therapy, arthroscopic/open lysis of adhesions, and revision surgery are currently used. Manipulation under anesthesia (MUA) is also a reasonable choice for an appropriate subset of patients with inadequate range of motion after ACLR. Recently, the correlation between anticoagulant usage and arthrofibrosis after total knee arthroplasty has become an area of interest. The purpose of this study was to determine whether anticoagulant use has a similar effect on the incidence of MUA after ACLR. Methods: The Mariner data set of the PearlDiver database was used to conduct this retrospective cohort study. Patients with an isolated ACLR were identified by using Current Procedural Terminology codes. Patients were then stratified by MUA within 2 years of ACLR, and the use of postoperative anticoagulation was identified. In addition, patient demographics, medical comorbidities, and timing of ACLR were recorded. Univariate and multivariable analyses were used to model independent risk factors for MUA. Results: We identified 216,147 patients who underwent isolated ACLR. Of these patients, 3,494 (1.62%) underwent MUA within 2 years. Patients who were on anticoagulants after ACLR were more likely to require an MUA (odds ratio [OR]: 2.181; P , 0.001), specifically low-molecular-weight heparin (OR: 2.651; P , 0.001), warfarin (OR: 1.529; P , 0.001), and direct factor Xa inhibitors (OR: 1.957; P , 0.001). Discussion: In conclusion, arthrofibrosis after ACLR is associated with the use of preoperative or postoperative thromboprophylaxis. Healthcare providers should be aware of increased stiffness among these patients and treat them aggressively.

Dehumanization is routinely invoked in social science and law as the primary factor in explaining how propaganda encourages support for, or participation in, violence against targeted outgroups. Yet the primacy of dehumanization is increasingly challenged by the apparent influence of revenge on collective violence. This study examines critically how various propaganda influence audiences. Although previous research stresses the dangers of dehumanizing propaganda, a recently published study found that only revenge propaganda significantly lowered outgroup empathy. Given the importance of these findings for law and the behavioral sciences, this research augments that recent study with two additional samples that were culturally distinct from the prior findings, showing again that only revenge propaganda was significant. To explore this effect further, we also conducted a facial electromyography (fEMG) among a small set of participants, finding that revenge triggered significantly stronger negative emotions against outgroups than dehumanization.