Cohort Studyhigh evidence
Polyethylene glenospheres in reverse total shoulder arthroplasty have greater long-term implant survivorship than metallic glenospheres: A New Zealand Joint Registry Study.
Journal of shoulder and elbow surgery·October 23, 2026·PMID 42918537
Why it mattersPolyethylene glenospheres may reduce revision burden in reverse shoulder arthroplasty, potentially due to less polyethylene-induced osteolysis and scapular notching. This registry evidence supports their use as a viable bearing option with comparable functional outcomes.
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