Quantification of trunnion damage in a series of intact total hip arthroplasty femoral stems previously identified to be at risk of catastrophic failure.
Brent A LantingOlawale A SogbeinSteven J MacDonaldNirmit ShahTea-Lyn KokRyan WillingMatthew G TeeterPublished in: Hip international : the journal of clinical and experimental research on hip pathology and therapy (2023)
Evidence of trunnion damage was observed in each stem retrieved for non-trunnionosis revision. Fretting occurred more frequently about the inferior quadrants. However, digitised trunnion shapes were similar between compared stems exhibiting no material loss. Therefore, it is possible that previous reports of trunnion failures for this implant are not a systemic issue, and that further investigation is required.