Polyethylene glenoid component fixation geometry influences stability in total shoulder arthroplasty

Nikolas K. Knowles, G. Daniel G. Langohr, George S. Athwal and Louis M. Ferreira

Computer Methods in Biomechanics and Biomedical Engineering, 2019, vol. 22, issue 3, 271-279

Abstract: Glenoid component stability is essential to ensure successful long-term survivability following total shoulder arthroplasty. As such, this computational study assessed the stability of five all-polyethylene glenoid components (Keel, Central-Finned 4-Peg, Peripheral 4-Peg, Cross-Keel, and Inverted-Y), using simulated joint loading in an osteoarthritic patient cohort. Stability was assessed on the basis of component micromotion in the tangential and normal directions. Maximum tangential micromotion occurred in the Cross-Keel (146 ± 46 µm), which was significantly greater (p

Date: 2019
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DOI: 10.1080/10255842.2018.1551526

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