Harvesting bone graft from the olecranon: a quantitative and biomechanical comparison of proximal and dorsal cortical windows.

We conducted a study to compare 2 techniques of harvesting ulna bone graft from the olecranon, one using a proximal cortical window (PCW), the other using a dorsal cortical window (DCW), in terms of cancellous bone graft quantity and ulna fracture strength after graft harvest. Cancellous bone was harvested from 8 pairs of embalmed cadaver proximal ulna. Each side of a matched pair was randomly assigned to graft harvest using either a PCW or a DCW approach.

Biomechanical evaluation of locking plate fixation with hybrid screw constructs in analogue humeri.

Locking plates are well suited to complex fracture patterns and weak bone. In the study reported here, we compared the structural stability of 3 different locking compression plate (LCP) constructs using composite analogue humeri. Eighteen analogue composite humeri were used as bone models.

Structural properties of a novel design of composite analogue humeri models.

Background: Mechanical analogue composite bone models have been used as cadaveric bone substitutes in a wide variety of biomechanical tests. The objective of this study was to compare the structural properties of two types (Third- and Fourth-Generation) of commercially available composite analogue humeri.

Methods: Eighteen of each generation composite analogue humeri were evaluated for flexural rigidity, torsional rigidity, and failure strength.

Extraskeletal mesenchymal chondrosarcoma of the forearm: a case report.

Mesenchymal chondrosarcomas represent less than 10% of all chondrosarcomas. The majority of these tumors arise from the skeleton; only 22% have an extraosseous origin. Of the extraskeletal locations, the meninges, brain, and thigh are the most common.

Complications of treating distal radius fractures with external fixation: a community experience.

Objective: To analyze the immediate postoperative complications associated with treating distal radius fractures with external fixation.

Design: A retrospective chart review of data obtained from 24 consecutive patients who were treated with small AO external fixators in 1997.

Setting: Two community medical centers.

Role of the coracoacromial ligament as restraint after shoulder hemiarthroplasty.

Patients with an irreparable rotator cuff tear and glenohumeral degeneration often are treated with hemiarthroplasty. This procedure has proven effective as long as the coracoacromial ligament remained intact. The ligament reportedly acts as a restraint against anterosuperior dislocation.