Reliability of various observers in determining common radiographic parameters of adult hip structural anatomy.

Background: Radiographic evaluation of the hip is extremely important in the diagnosis and treatment decisionmaking process for pre-arthritic hip disease. Many different radiographic measurements have been described as indicators of underlying structural hip deformity. The purpose of this study was to determine the interobserver and intraobserver reliability of various musculoskeletal physicians in performing selected measurements of adult structural hip anatomy.

The relationship between scapular notching and reverse shoulder arthroplasty prosthesis design.

Background: Inferior scapular notching is a common radiographic complication of reverse shoulder arthroplasty. The purpose of this study is to determine the impact of prosthesis design on the incidence and severity of notching.

Materials And Methods: Eighty-eight patients (mean age, 72 years) who underwent reverse shoulder arthroplasty with a minimum of 12 months' follow-up (mean, 31 months) were retrospectively reviewed.

Arthroscopic treatment of isolated type II SLAP lesions: biceps tenodesis as an alternative to reinsertion.

Background: Overhead athletes report an inconsistent return to their previous level of sport and satisfaction after arthroscopic SLAP lesion repair.

Hypothesis: Arthroscopic biceps tenodesis offers a viable alternative to the repair of an isolated type II SLAP lesion.

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

THA with highly cross-linked polyethylene in patients 50 years or younger.

Unlabelled: Highly cross-linked polyethylene has been associated with low in vitro wear, but also has decreased in vitro ultimate yield strength. We therefore asked whether highly cross-linked polyethylene would result in lower outcome scores, wear, or early failure in a young patient population. Seventy THAs in 64 patients were performed using a highly cross-linked (electron beam-irradiated to 9 Mrads) acetabular liner and a cobalt-chrome femoral head.

Troublesome stress fractures of the foot and ankle.

Athletes engaged in repetitive activity with recent increases in training or competition are at risk for stress fractures of the foot and ankle. Physical and radiographic findings are often unremarkable and diagnosis may be difficult. Although many of these injuries may be managed symptomatically, certain types of stress fractures are at higher risk for delayed union, nonunion, or refracture without aggressive immobilization or surgical fixation.