Fig. 4From: The clinical efficacy of arthroscopic therapy with knee infrapatellar fat pad cell concentrates in treating knee cartilage lesion: a prospective, randomized, and controlled studyWOMAC scores were evaluated pre-operation, 6 weeks, 12 weeks, 24 weeks, and 48 weeks after intervention. a WOMAC total scores. b WOMAC pain scores. c WOMAC stiffness scores. d WOMAC function scores. Experiment group = cell concentrates injection + knee arthroscopy; control group = knee arthroscopy (*p < 0.05)Back to article page