Sans N, Richardi G, Fourcade D, Assoun J, Chiavassa H, Giron J, Jarlaud T, Paul J L, Railhac J J
Service Central d'Imagerie Médicale, CHU Purpan, Toulouse.
J Radiol. 1996 Feb;77(2):117-23.
To define the normal patterns of gleno-humeral joint, with kinematic MR imaging in asymptomatic volunteers.
Twenty asymptomatic volunteers (39 shoulders) were studied with a 1.5 Tesla imager. Successive acquisitions Flash (99, 18, 15 degrees) were obtained in the axial plane, from full internal to full external rotation, at the superior, mid and inferior glenoid level.
Free edge of the anterior labrum was noted slightly mobile, its base was always immobile. The anterior labrum exhibited modification of shape and increased signal intensity in internal rotation (54%). The posterior labrum remained motionless in 97% and neither shape or signal intensity changes were noted in internal rotation. Inferior labro-capsular ligamentous complex was visualised in all cases. The anterior capsular joint was taut in external rotation and exhibited a slack (51%) or folded (13.5%) pattern during internal rotation.
Kinematic MR imaging allows a dynamic assessment of the different anatomic components which may be implicated in shoulder instability. It provides information about the labro-capsular ligamentous complex.
通过对无症状志愿者进行肩关节运动磁共振成像，确定盂肱关节的正常模式。
对20名无症状志愿者（39个肩部）使用1.5特斯拉成像仪进行研究。在轴向平面上，从完全内旋到完全外旋，于肩胛盂上、中、下水平依次进行快速小角度激发序列（99°、18°、15°）采集。
发现前盂唇游离缘略有活动，其基部始终固定不动。前盂唇在97%的情况下保持静止，在内旋时其形状和信号强度均无变化。所有病例均可见下盂肱韧带复合体。前关节囊在肩外旋时绷紧，在内旋时呈松弛（51%）或折叠（13.5%）状态。
肩关节运动磁共振成像可对可能与肩关节不稳相关的不同解剖结构进行动态评估。它提供了有关盂肱韧带复合体的信息。
