Sanders T G, Morrison W B, Singleton B A, Miller M D, Cornum K G
Department of Radiology, Wilford Hall Medical Center, Lackland Air Force Base, TX 78236-5300, USA.
J Comput Assist Tomogr. 2001 Nov-Dec;25(6):957-62. doi: 10.1097/00004728-200111000-00021.
The purpose of this study was to determine the accuracy of MRI in determining both the extent and the location of injury to the medial patellofemoral ligament (MPFL).
MR findings were compared to the surgical results of 14 consecutive patients who experienced transient patellar dislocation. Two musculoskeletal radiologists, blinded to the surgical results, retrospectively reviewed the MR studies, and a consensus reading was obtained.
Surgery demonstrated complete disruption of the MPFL in 7 of 14 patients (50%), with stretching or partial tearing of the MPFL in the remaining 7 (50%) patients. MRI was 85% sensitive and 70% accurate in detecting MPFL disruption. Vastus medialis obliquus muscle elevation was present in 12 of 14 (85%).
MRI accurately depicts both the extent and the location of MPFL injury following transient patellar dislocation and can therefore play a significant role in directing surgical management of these patients.
本研究的目的是确定磁共振成像（MRI）在确定髌股内侧韧带（MPFL）损伤范围和位置方面的准确性。
将14例经历过短暂髌骨脱位患者的MRI检查结果与手术结果进行比较。两位肌肉骨骼放射科医生在不知晓手术结果的情况下，对MRI研究进行回顾性审查，并达成共识性解读。
手术显示14例患者中有7例（50%）的MPFL完全断裂，其余7例（50%）患者的MPFL有拉伸或部分撕裂。MRI检测MPFL断裂的敏感性为85%，准确性为70%。14例中有12例（85%）存在股内侧斜肌抬高。
MRI能够准确描绘短暂髌骨脱位后MPFL损伤的范围和位置，因此在指导这些患者的手术治疗中可发挥重要作用。
