Prostheses for reverse total shoulder arthroplasty.

Introduction: Historically, patients with rotator cuff arthropathy had limited reconstructive options. The early generations of reverse total shoulder arthroplasty (rTSA) designs had increased failure rates due to loosening of glenoid baseplates secondary to excessive torques. In 1985, Paul Grammont introduced a prosthetic design changing the center of rotation that addressed this major complication.

An atypical presentation of heterotopic ossification following pelvic ring injury.

Disruption of the pelvic ring is associated with great morbidity and mortality. The high-energy blunt trauma that often leads to these injuries is also responsible for the head, chest, spine, extremity, and genitourinary trauma seen concurrently. Urethral and bladder injuries have been reported in up to 25% of patients with pelvic fractures and can lead to a plethora of urogenital problems.

Biomechanical effects of harvesting bone graft with the Reamer/Irrigator/Aspirator on the adult femur: a cadaver study.

Objectives: Test the biomechanical properties of femurs that have undergone reaming with the Reamer Irrigator Aspirator (RIA) device with an aim to prove no difference in torsional strength between matched pairs.

Methods: Intact femurs were harvested from embalmed cadavers, representing 19 matched pairs. One femur from each pair was randomly selected to undergo reaming using the RIA to 15 mm.