proposed by Behrens in 2003. it aims to extend the use of microfracture surgery to larger cartilage lesions > 2.5 cm2. Its clinical efficiency in autologous chondrocyte implantation (ACI), another cartilage repair technique for larger cartilage lesions, has been studied. In general various factors have been identified known to influence the result after cartilage repair regardless of the technique used. Amongst them are the species and age of the individual, the size and localization of the articular cartilage defect, the surgical technique, and the postoperative rehabilitation protocol. The latter has been found especially important for microfracture surgery and therefore for AMIC. The basic procedure of Microfracture surgery was developed by JR Steadman in the late 80’s and early 90’s. It is a well documented cartilage repair technique and first line treatment option for small cartilage lesions. AMIC evolved with the aim to improve some of the shortfalls of microfracture surgery as for instance variable repair cartilage volume and functional deterioration over time. References External links Orthopedic surgical procedures