Simultaneous Bilateral Distal Biceps Musculotendinous and Distal Avulsion Injuries: A Case Report.

Case: A patient presented with simultaneous left-sided distal biceps tendon rupture and a right-sided distal biceps complete musculotendinous junction tear after lifting a motorcycle. The left upper extremity was treated operatively with acute repair, and the right upper extremity was managed nonoperatively. At the final follow-up, the patient reported full strength and motion with Disabilities of the Arm, Shoulder and Hand (DASH) and QuickDASH scores of 14.

Is Diagnostic Arthroscopy at the Time of Medial Patellofemoral Ligament Reconstruction Necessary?

Background: Although medial patellofemoral ligament (MPFL) reconstruction is well described for patellar instability, the utility of arthroscopy at the time of stabilization has not been fully defined.

Purpose: To determine whether diagnostic arthroscopy in conjunction with MPFL reconstruction is associated with improvement in functional outcome, pain, and stability or a decrease in perioperative complications.

Study Design: Cohort study; Level of evidence, 3.

Decreased Osteogenic Activity of Mesenchymal Stem Cells in Patients With Corticosteroid-Induced Osteonecrosis of the Femoral Head.

Background: Osteonecrosis (ON) of the femoral head occurs when cells of trabecular bone spontaneously die. Mesenchymal stem cells (MSCs) have been introduced into the femoral head in an attempt to halt progression of the disease. The purpose of this study was to functionally compare MSCs in patients with ON of the femoral head with patients without.