Prevalence of Borderline Acetabular Dysplasia in Symptomatic and Asymptomatic Populations: A Systematic Review and Meta-analysis.

Background: Patients with borderline acetabular dysplasia are a controversial patient population in hip preservation, as some have primarily impingement-based symptoms and others have instability-based symptoms. Borderline dysplasia is most commonly defined as a lateral center-edge angle (LCEA) of 20° to 25°. However, its prevalence has not been well established in the literature.

Demographic changes in US trampoline-related injuries from 1998 to 2017: cause for alarm.

Background: Recreational sports facilities with trampolines have become increasingly popular, and trampoline-related injuries incurred have been increasing. The goal of this study was to determine impact of recreational sports facilities on trampoline-associated injuries.

Methods: An epidemiological study was performed using data from the National Electronic Injury Surveillance System (NEISS).