PMID: 3383490Jul 1, 1988Paper

Stress analyses of glenoid component designs

Clinical Orthopaedics and Related Research
T E OrrD J Schurman

Abstract

Metal backing of glenoid components for total shoulder replacements and the use of bony ingrowth surfaces on these components have recently been introduced. In this study, finite element analyses were performed to determine the stress fields in the natural glenoid and to calculate the change in bone stresses after implantation of glenoid components of various designs. The effects of metal backing, keel geometry, and superior constraint on bone stresses indicate that stress distributions on the natural glenoid corresponded to bone morphology. Metal-backing the glenoid component may cause slight improvement in stress transfer to cortical bone. Altered fin geometry better stabilized the glenoid component. Superior restraints on the component intending to prevent subluxation increase stresses and may cause earlier loosening than encountered with unconstrained components.

Citations

Dec 17, 2011·Journal of Shoulder and Elbow Surgery·Stephen B GuntherAndrew Rodenhouse
Jan 10, 2012·Clinical Biomechanics·Alexandre TerrierAlain Farron
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Jan 19, 2010·Clinical Biomechanics·Ibrahim KaloucheOlivier Gagey
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