Pressure profile changes after cartilage biopsy at the postero-medial rim of the talar dome

Introduction Autologous chondrocytes implantation is a promising technique to treat joint surface defects of the talar dome, especially when it is considered that a complete arthroscopic procedure is available yet [1]. However, the exact biopsy site as source of the cells to be expanded remains an issue of debate. Recently we showed that a limited biopsy can be harvested reliably and consistently at the postero-medial rim of the talar dome by arthroscopy [2]. Further research must establish if this location is indeed a "lesser weight bearing area". This study aims to determine the changes occurring in the pressure profile across the aforementioned site after a biopsy has been harvested.