Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Shoulder 153 articles

Articles

Hemiarthroplasty for Proximal Humerus Fractures in Patients with Parkinson’s Disease

Thomas J. Kryzak MD, John W. Sperling MD, MBA, Cathy D. Schleck BSc, Robert H. Cofield MD

Parkinson’s disease is a relatively common problem in geriatric patients with an annual incidence rate of 20.5 per 100,000. These patients are at increased risk for falls and resultant fractures. Several reports suggest total shoulder arthroplasty in patients with fractures has a relatively high rate of complications. Whether hemiarthroplasty reduces the rate of complications or improves pain or function is not known.

Radiographic Stability of Ingrowth Humeral Stems in Total Shoulder Arthroplasty

Thomas W. Throckmorton MD, Peter C. Zarkadas MD, John W. Sperling MD, Robert H. Cofield MD

Cemented and uncemented stem types are available for TSA. An early uncemented stem designed for bone ingrowth had radiographic loosening of approximately 10% at intermediate followup (mean 4.6 years). Subsequent stem modifications included circumferential metaphyseal porous coating to enhance ingrowth and reduce loosening rates.

Case Reports: Two Cases of Glenohumeral Chondrolysis after Intraarticular Pain Pumps

Okechukwu A. Anakwenze MD, Harish Hosalkar MD, MBMS(Orth), FCPS(Orth), DNB(Orth), G. Russell Huffman MD, MPH

Acute idiopathic chondrolysis in young adults is rare. The etiology often is unknown and outcomes can be devastating owing to rapid development of painful secondary osteoarthritis. There have been some recent reports of chondrolysis after arthroscopic shoulder procedures. Animal and laboratory data suggest chondrolysis is related to the use of intraarticular pain pumps, although there is no conclusive evidence that this is causative in patients.