A Comprehensive Summary of Systematic Reviews on Sports Injury Prevention Strategies.

Background: A large volume of systematic reviews and meta-analyses has been published on the effectiveness of sports injury prevention programs.

Purpose: To provide a qualitative summary of published systematic reviews and meta-analyses that have examined the effectiveness of sports injury prevention programs on reducing musculoskeletal injuries.

Study Design: Systematic review; Level of evidence, 4.

Ability of Medial Patellofemoral Ligament Reconstruction to Overcome Lateral Patellar Motion in the Presence of Trochlear Flattening: A Cadaveric Biomechanical Study.

Background: Medial patellofemoral ligament (MPFL) reconstruction is an established operative procedure to restore medial restraining force in patients with patellar instability. In the setting of a shallow sulcus, it is unclear whether an isolated MPFL reconstruction is sufficient to restore patellofemoral stability.

Hypothesis: Progressively increasing the sulcus angle would have an adverse effect on the ability of an MPFL reconstruction to restrain lateral patellar motion.

An Up-to-Date Review of the Meniscus Literature: A Systematic Summary of Systematic Reviews and Meta-analyses.

Background: A large number of systematic reviews and meta-analyses regarding the meniscus have been published.

Purpose: To provide a qualitative summary of the published systematic reviews and meta-analyses regarding the meniscus.

Study Design: Systematic review; Level of evidence, 4.

High-Grade Partial and Retracted (<2 cm) Proximal Hamstring Ruptures: Nonsurgical Treatment Revisited.

Background: High-grade partial proximal hamstring tears and complete tears with retraction less than 2 cm are a subset of proximal hamstring injuries where, historically, treatment has been nonoperative. It is unknown how nonoperative treatment compares with operative treatment.

Hypothesis: The clinical and functional outcomes of nonoperative and operative treatment of partial/complete proximal hamstring tears were compared.

An effective approach to diagnosis and surgical repair of refractory medial epicondylitis.

Background: Medial epicondylitis of the elbow, an overuse injury characterized by angiofibroblastic tendinosis of the common flexor-pronator origin, generally responds to nonoperative treatment. Refractory cases may require surgical débridement and repair. This study discusses physical examination and imaging findings and an updated surgical technique used in patients with recalcitrant medial epicondylitis.