Arthroscopic reduction and repair of a locked posterior shoulder dislocation.

Locked posterior shoulder dislocations are an uncommon but difficult problem for the orthopaedic clinician. Furthermore, they are often missed on initial presentation, resulting in significant delays in treatment. Traditional treatment has involved formal open reduction, most commonly from an anterior approach, followed by transfer of the lesser tuberosity or subscapularis tendon into the anterior humeral head defect.

Femoral aimer deformation: Potential cause for altered femoral tunnel placement in anterior cruciate ligament surgery.

In this case observational study, a standard commercially available femoral aimer used for endoscopic anterior cruciate ligament (ACL) reconstruction was found to have an abnormal bend in the offset tongue that is normally placed in the over-the-top position for ACL femoral aiming using an endoscopic technique. A standard 3/32-inch Steinmannn pin was placed through the aimer, and the offset distance measured 13 mm instead of the normal 7 mm. If this device had been used, significant error would have occurred, placing the anterior tunnel much more anterior than intended, thus potentially contributing to a surgical failure.

Chondral injuries.

Chondral injures are present in up to 10 to 12% of all individuals. When symptomatic, chondral lesions manifest in knee pain, swelling, and loss of function. Cartilage loss may be partial or complete, and it may affect one or multiple locations.