Purpose: The purpose of the present study was to evaluate the outcomes related to cartilage repair tissue after microfracture
Summary: Second-look arthroscopic results revealed that 36% of lesions were incompletely healed and had inferior quality of repair tissue compared with that of native cartilage at a mean of 3.6 years, although arthroscopic microfracture provided functional improvements.
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Hong-Yeol Yang, Keun-Bae Lee. "Arthroscopic Microfracture for Osteochondral Lesions of the Talus". The Journal of Bone and Joint Surgery (JBJS). January 2020.