| Not yet recruiting | N/A | 150 | RoW | Guided cartilage regeneration membrane, Microfracture | Peking University Third Hospital, Zhongnan Hospital, Second Hospital of Shanxi Medical University, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, The First Affiliated Hospital of Kunming Medical College, Zunyi Medical College, The First Affiliated Hospital of Zhengzhou University, Chinese PLA General Hospital, Xi'an Honghui Hospital | Articular Cartilage Injury, Knee Ligament Injury | 08/22 | 08/23 | | |