Tirman P F, Stauffer A E, Crues J V, Turner R M, Nottage W M, Schobert W E, Rubin B D, Janzen D L, Linares R C
Cottage Community Magnetic Resonance Center, Santa Barbara, California.
Arthroscopy. 1993;9(5):550-9. doi: 10.1016/s0749-8063(05)80403-7.
Sixty-five patients underwent magnetic resonance (MR) shoulder arthrography. Forty-eight of these patients underwent examination under anesthesia (EUA). MR images were retrospectively evaluated for signs felt to be imaging indicators of shoulder instability, including evaluation of various capsular measurements and the presence of glenoid labral tears, as well as Hill-Sachs fractures. Statistical analysis of the results showed that no correlation between capsular indicators with EUA-documented instability was found. However, there was a statistically significant correlation between the presence of a Bankart cartilaginous deformity (p = 0.000) and Hill-Sachs fractures (p = 0.022) with EUA-documented instability. Sensitivity to labral tears was 89% and specificity was 98%, whereas Hill-Sachs fracture detection was 69% and 87%, respectively. We believe that MR saline arthrography is of benefit in the evaluation of the anterior labrum when unenhanced MR imaging is inconclusive, and we speculate on the role of MR arthrography as a primary investigative tool.
65例患者接受了肩关节磁共振（MR）关节造影。其中48例患者在麻醉下进行了检查（EUA）。对MR图像进行回顾性评估，以寻找被认为是肩关节不稳定的影像学指标，包括评估各种关节囊测量值、肩胛盂唇撕裂的存在情况以及希尔-萨克斯骨折。结果的统计分析表明，未发现关节囊指标与EUA记录的不稳定之间存在相关性。然而，Bankart软骨畸形的存在（p = 0.000）和希尔-萨克斯骨折（p = 0.022）与EUA记录的不稳定之间存在统计学上的显著相关性。对唇撕裂的敏感性为89%，特异性为98%，而希尔-萨克斯骨折的检测率分别为69%和87%。我们认为，当未增强的MR成像结果不明确时，MR盐水关节造影有助于评估前盂唇，并且我们推测了MR关节造影作为主要检查工具的作用。
