The Incidence of Concussion and Symptom Non-Reporting Among Professional Women's Ice Hockey Players.

Background: Female ice hockey players have rates of sports-related concussion that are similar to male participants at various levels of play, despite differences in the rules that do not allow for body checking in the women's game. At the elite level, there are limited data regarding concussion rates and concussion symptom reporting. Therefore, it was hypothesized that there would be a high incidence of concussion and concussion symptom-reporting in professional women's ice hockey players.

Surgeon Energy Expenditure and Substrate Utilization During Simulated Spine Surgery.

Introduction: Orthopaedic surgery can be a physically demanding occupation with high rates of fatigue and burnout. Fatigue has been shown to affect surgeon performance with higher rates of errors in fatigued surgeons. The metabolic cost of performing surgery has yet to be quantified.

Relationship Between the Risk of Suffering a First-Time Noncontact ACL Injury and Geometry of the Femoral Notch and ACL: A Prospective Cohort Study With a Nested Case-Control Analysis.

Background: The morphometric characteristics of the anterior cruciate ligament (ACL) and the femoral intercondylar notch within which it resides have been implicated as risk factors for injuries to this important stabilizer of the knee. Prior research has produced equivocal results with differing methodologies, and consequently, it is unclear how these characteristics affect the injury risk in male and female patients.

Hypothesis: The morphometric characteristics of the ACL and femoral intercondylar notch are individually and independently associated with the risk of suffering a noncontact ACL injury, and these relationships are different in male and female patients.