Purpose.Medial meniscal extrusion (MME) has attracted attention as an index of knee pain in conjunction with clinical symptoms\nthat could bemore useful than the diagnosis of knee osteoarthritis on X-ray. However, the size ofMME that would cause knee pain\nhas not been clarified. The aim of the present study was to investigate the cut-off value of MME for knee pain. Methods. A total of\n318 knees were evaluated. The presence of current or past knee pain was confirmed by interview. Next, MME was measured using\nvertical sonographic images of themedial joint spaces during weightbearing. Results. Overall, 71 knees were painful (P-group), and\n247 knees were not (N-group). MME was 5.9 �± 1.8mm in the P-group and 2.9 �± 1.5mm in the N-group (
Loading....