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Polyethylene glenoid component fixation geometry influences stability in total shoulder arthroplasty

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

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

Suggested Citation

  • Nikolas K. Knowles & G. Daniel G. Langohr & George S. Athwal & Louis M. Ferreira, 2019. "Polyethylene glenoid component fixation geometry influences stability in total shoulder arthroplasty," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 22(3), pages 271-279, February.
    • Handle: RePEc:taf:gcmbxx:v:22:y:2019:i:3:p:271-279
    DOI: 10.1080/10255842.2018.1551526
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