Patellar tracking abnormalities: clinical experience with kinematic MR imaging in 130 patients.
Patellar tracking abnormalities: clinical experience with kinematic MR imaging in 130 patients.
复制标题
髌骨跟踪异常：130 名患者的运动 MR 成像临床经验。
DOI：
10.1148/radiology.172.3.2772191
复制
发表时间：
1989
期刊：
影响因子：
19.7
通讯作者：
J. Fox
中科院分区：
文献类型：
--
作者：
F. Shellock;J. Mink;A. Deutsch;J. Fox
一种用于评估髌骨对线不良的运动磁共振（MR）成像技术，包括在被动膝关节屈曲的早期增量期间采集髌股关节的多个连续轴向图像，用于评价130例患者（235个有症状的髌股关节），这些患者显示有髌骨轨迹异常的临床证据。其中23例髌股关节既往接受过髌骨重新排列手术。此外，研究了14例（28个髌股关节）无症状对照受试者。在所有无症状受试者和患者人群中260个髌股关节中的43个（17%）中观察到正常髌骨轨迹，其中18个（7%）有症状。69例（26%）髌股关节有髌骨外侧半脱位，106例（41%）髌骨内侧半脱位，21例（8%）髌骨外侧压力过大综合征，19例（7%）髌骨外侧至内侧半脱位，2例（1%）髌骨脱位。在235个疑似异常的髌股关节中，217个（93%）髌骨对线不良。在23例既往接受过手术的髌股关节中，20例（87%）髌骨轨迹异常。13/14例（93%）髌股关节接受了关节镜下外侧支持带松解，髌骨内侧移位。
A kinematic magnetic resonance (MR) imaging technique for assessment of malalignment of the patella, involving the acquisition of multiple sequential axial images of the patellofemoral joint during the early increments of passive knee flexion, was used to evaluate 130 patients (235 symptomatic patellofemoral joints) showing clinical evidence of having patellar tracking abnormalities. Twenty-three of the patellofemoral joints had undergone previous surgical procedures for patellar realignment. In addition, 14 (28 patellofemoral joints) asymptomatic control subjects were studied. Normal patellar tracking was observed in all of the asymptomatic subjects and in 43 (17%) of the 260 patellofemoral joints in the patient population, 18 (7%) of which were symptomatic. Sixty-nine (26%) of the patellofemoral joints had lateral subluxation of the patella, 106 (41%) had medial subluxation of the patella, 21 (8%) had excessive lateral pressure syndrome, 19 (7%) had lateral-to-medial subluxation of the patella, and two (1%) had dislocation of the patella. Of the 235 patellofemoral joints with suspected abnormalities, 217 (93%) had patellar malalignment. Of the 23 patellofemoral joints that had undergone prior surgery, 20 (87%) had abnormal patellar tracking. Thirteen of 14 (93%) patellofemoral joints that had undergone a prior arthroscopic lateral retinacular release had a medially displaced patella.