Descriptive Epidemiology From the Research in Osteochondritis Dissecans of the Knee (ROCK) Prospective Cohort.

Background: Osteochondritis dissecans (OCD) occurs most commonly in the knees of young individuals. This condition is known to cause pain and discomfort in the knee and can lead to disability and early knee osteoarthritis. The cause is not well understood, and treatment plans are not well delineated.

Exploring Vestibular/Ocular and Cognitive Dysfunction as Prognostic Factors for Protracted Recovery in Sports-Related Concussion Patients Aged 8 to 12 Years.

Objective: To explore the prognostic ability of the vestibular/ocular motor screening (VOMS), King-Devick (K-D) Test, and C3 Logix Trails A and B to identify protracted recovery from sports-related concussion (SRC) in patients aged 8 to 12 years.

Design: Retrospective cohort analysis.

Setting: Specialty pediatric sports concussion clinic.

A Biomechanical Assessment of Biceps Femoris Repair Techniques.

Background: Knee injuries encountered in clinical practice can involve avulsions of the biceps femoris from the fibula and proximal tibia. Advances in tendon repair methods now allow for repairs with increased surface areas using modern suture anchor techniques. Despite descriptions of repair techniques, there are no biomechanical studies on the biceps femoris for comparison.

Sonographically Guided Posterior Cruciate Ligament Injections: Technique and Validation.

Objective: To describe and validate a technique for sonographically guided posterior cruciate ligament (PCL) injections.

Design: Prospective, cadaveric laboratory investigation.

Setting: Procedural skills laboratory.

Use of ultrasonography as a diagnostic and therapeutic tool in sports medicine.

Ultrasonography has many important advantages over other imaging modalities and many important applications in sports medicine. This article presents an evidence-based discussion of the use of ultrasound technology to diagnose and treat common musculoskeletal disorders, with emphasis on the shoulder, elbow, hip, knee, and foot and ankle. Topics include basic principles, scan artifacts, the appearance of musculoskeletal structure characteristics and pathologies, and various diagnostic and therapeutic applications in sports medicine.

Carpal coalition with radioscaphoid synostosis and hypoplastic thumb.

Carpal coalition is an anomaly that is usually discovered as an incidental finding on roentgenograms. The most common site is between the lunate and the triquetrum, though fusion of almost every combination of carpal bones has been reported. Carpal coalition can be isolated but has also been associated with numerous congenital malformation syndromes.

The effect of modern total knee arthroplasty on muscle balance at the knee.

Total Knee Arthroplasty (TKA) may affect the muscles operating at the flexion/extension (FE) or internal /external rotation (IE) axes. This study tested the hypothesis that a modern posterior stabilizing TKA will change the mechanical balance of the knee joint by altering the moment arms of muscles acting about two separate axes of rotation. Moment arms were determined for the normal knee, the knee after resection of the Anterior Cruciate Ligament (the ACL - knee) and the knee after a PCL-sacrificing TKA.