Changes in U.S. girls' participation in high school sports: implications for injury awareness.

Context: The number of female athletes has grown exponentially since Title IX. However, little data exists on the proportion of women and girls who play each sport.

Objective: To quantify changes in female sports participation in high school sports from 1973 to 2018.

Supplemental tibial fixation for anterior cruciate ligament reconstruction.

This report describes transosseous backup suture fixation for anterior cruciate ligament (ACL) grafts of all varieties, used to distally augment proximal screw fixation in the tibia. Using a simple suture configuration, this method secures the ACL graft to the tibial cortex in conjunction with a proximal interference screw. The technique is applicable for all graft configurations, including allograft, autograft, bone, and both 2- and 4-strand soft-tissue grafts.

Focal anatomic patellofemoral inlay resurfacing: theoretic basis, surgical technique, and case reports.

Prosthetic patellofemoral inlay resurfacing is a novel treatment concept for degenerative and focal arthrosis of the patellofemoral joint. The theoretic basis of this type of arthroplasty entails recreating ambient anatomy based upon intraoperative topographic mapping. The implant is intrinsically stable by virtue of the inset position relative to the surrounding joint surface.

Clinical, histologic, and radiographic outcomes of distal femoral resurfacing with hypothermically stored osteoarticular allografts.

Background: Fresh osteoarticular allograft transplantation has a long history of clinical success. These grafts have typically been implanted less than 1 week from donor asystole.

Hypothesis: Osteoarticular allografts stored 4 to 6 weeks represent a viable alternative to treat full-thickness cartilage and osteochondral defects of the distal femur as measured by clinical, histologic, and magnetic resonance imaging (MRI) criteria.

Mobile superior glenoid labrum: a normal variant or pathologic condition?

Background: Arthroscopic differentiation between a pathologic superior labrum anterior posterior lesion and a normal anatomic variant may be difficult.

Hypothesis: Various anatomic patterns exist that systematically characterize superior biceps-labral configurations. One variant involves a mobile superior labrum with exposed articular cartilage on the superior glenoid tubercle.