Ensuring Accurate Component Placement in Glenoid Bone Loss.

Glenoid component malposition has important implications for implant wear and longevity after shoulder arthroplasty. Although not confirmed by long-term clinical studies, multiple biomechanical studies have identified altered wear forces, increased contact pressures, decreased contact area, eccentric loading, and potential for loosening associated with inaccurate component placement. Accurate placement is especially challenging with glenoid bone loss.

Repair and reconstruction of the lateral ulnar collateral ligament.

Lateral ulnar collateral ligament repair and reconstruction are techniques used to treat posterolateral rotatory instability of the elbow. The choice to perform repair versus reconstruction is typically dependent on the chronicity of the injury and the quality of tissue available at the time of surgery.

Differentiating cervical spine and shoulder pathology: common disorders and key points of evaluation and treatment.

Accurately diagnosing patients with self-described pain in the shoulder or cervical spine (neck) remains a challenge for the orthopaedic surgeon. The overlapping presentations of shoulder disorders with those of the cervical spine, along with a lack of precision in physical examination testing, can create a confusing clinical picture and may result in disorganized or ineffective diagnostic and treatment regimens. A careful physical examination combined with judicious use of adjunctive tests, including selective corticosteroid injections, may help clarify the diagnosis.

Patient reported activities after shoulder replacement: total and hemiarthroplasty.

Hypothesis/background: The indication to perform a shoulder arthroplasty is guided in part by a patient's intended level of activity after surgery. What level of activity should be safely recommended, and, presently, patient reported activity level is unknown. The purpose of this study was to define and compare the self-reported activities of patients following shoulder arthroplasty either total (TSA) or hemiarthroplasty (HA).