Clinical evaluation of a resurfacing device implant for femoral osteochondral defects greater than 1 cm with a minimal follow-up of 4 years: a prospective cohort study.

Purpose: Osteochondral defects have a limited capacity to heal and can evolve to an early osteoarthritis. A surgical possibility is the replacement of the affected cartilaginous area with a resurfacing device BioPoly™ RS Partial Resurfacing Knee Implant. The aim of this study was to report the clinical and survival outcomes of the BioPoly™ after a minimum follow-up of 4 years.