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 TKA). Patients who underwent revision were significantly younger. After a mean eight (2–20) years of follow-up, mean anterior pain, the IKS and AKP scores improved significantly.