Intra-articular entrapment of the medial collateral ligament: radiographic and MRI findings.
Displacement of the medial collateral ligament (MCL) into the medial knee joint is an extremely rare finding associated with MCL tears, and is easily diagnosed on magnetic resonance imaging. A case of intra-articular interposition of the MCL during a severe knee injury is presented. A radiolucent "fat stripe" sign and adjacent skin dimpling on radiographs may be relatively specific indicators of this injury.
Patel
J J
JJ
Department of Radiology, Baystate Medical Center, 759 Chestnut Street, Springfield, MA 01199, USA.
D001175:Arthrography; D006801:Humans; D007593:Joint Instability / Q000175:diagnosis / Q000209:etiology / Q000601:surgery; D007718:Knee Injuries / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D017888:Medial Collateral Ligament, Knee / Q000293:injuries / Q000473:pathology* / Q000601:surgery; D008875:Middle Aged; D009985:Orthopedics; D012421:Rupture