Hermes patellofemoral arthroplasty: Annual revision rate and clinical results after two to 20 years of follow-up

The Knee
Yoann BohuSerge Herman

Abstract

Patellofemoral arthroplasty (PFA) is an alternative to a total knee arthroplasty (TKA) in patients with severe isolated patellofemoral osteoarthritis. The main goal of this study was to determine the revision rate of the Hermes™ (Ceraver) anatomical unconstrained PFA. A retrospective single surgeon study was performed including all patients operated for PFA between 1997 and 2015. A standardized procedure was used to perform PFA with one type of prosthesis. All patients in the study were contacted at the final follow-up. The main judgment criterion was the annual rate of revision. Secondary criteria were the severity of anterior knee pain on a numerical scale (0-10) and functional scores (IKS and AKP scores). During this period, PFA was performed in 64 patients (74 PFA), 52 women/12 men, mean age at surgery 59.6 ± 11.8 (31.3-82.1) years old. Four patients (5.4% of PFA) were lost to follow-up. Mean follow-up for the remaining 70 PFA was 7.5 ± 7.1 (2-20) years. TKA was required in 10 (14.3%) patients after a mean 5.4 ± 3.4 (1-9.3) years. The annual rate of revision was two-percent CI95% [1.1-3.7%] if TKA was considered to be the defining event and 3.1% CI95% [1.9-5.1%] for all types of revision (partial/total PFA replacement or TK...Continue Reading

Citations

Apr 3, 2021·The Journal of Arthroplasty·Jordan C VillaKatharine D Harper
Nov 19, 2021·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Guillaume DemeyNanne Kort

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