The American journal of sports medicine
-
Injuries to the shoulder are common in collegiate football, and injuries to the acromioclavicular (AC) joint have previously accounted for up to 41% of all shoulder injuries. ⋯ AC joint injuries in NCAA football players are predominantly low-grade sprains, leading to approximately 12 days of lost competition. The few severe sprains that occurred often resulted in surgery or required approximately 5 weeks of rehabilitation.
-
Understanding the acute response of healthy knee cartilage to running may provide valuable insight into functional properties. In recent years, quantitative magnetic resonance (MR) imaging techniques (T1(ρ) and T2 relaxation measurement) have shown tremendous potential and unique ability to noninvasively and quantitatively determine cartilage response to physiologic levels of loading occurring with physiologic levels of exercise. ⋯ Shorter T1(ρ) and T2 values after running suggest alteration in the water content and collagen fiber orientation of the articular cartilage. Greater changes in relaxation times of the medial compartment and patellofemoral joint cartilage indicate greater load sharing by these areas during running.
-
In a single arthroscopic surgery for rotator cuff tears with a stiff shoulder, closed manipulation with or without arthroscopic capsular release has been combined with the repair. Few studies have reported functional results after this surgery, and a clinical comparison has not been reported. ⋯ Overall satisfactory results could be achieved by either method, whereas rapid recovery and improvement of range of motion could be achieved by using a single arthroscopic repair and concomitant release for patients with rotator cuff tears with stiff shoulder.
-
This is an analysis of the prospective Study of the Treatment of Articular Repair (STAR) to evaluate the effectiveness of autologous chondrocyte implantation (ACI) in a subset of adult patients with osteochondritis dissecans (OCD) knee lesions. ⋯ Patients with OCD of the knee had statistically significant pain reduction and functional improvement for up to 48 months after ACI, despite the complexity and severity of the osteochondral lesions.
-
Rotator cuff tears are common injuries that are often treated with surgical repair. Because of the high concentration of growth factors within platelets, platelet-rich plasma (PRP) has the potential to enhance healing in rotator cuff repairs. ⋯ The decreased tendon tissue stiffness acutely and failure to enhance tendon-to-bone healing of repairs should be considered before augmenting rotator cuff repairs with PRP. Further studies will be necessary to determine the role of PRP in clinical practice.