St John J N, Palmaz J C
Radiology. 1986 Jan;158(1):119-23. doi: 10.1148/radiology.158.1.3940367.
Anteroposterior radiographs of the fully flexed and slightly externally rotated elbow were obtained in 122 cases of cubital tunnel syndrome (CUTS) and in 33 normal elbows. Medial trochlear lip osteophytes were not found in the studies of normal elbows but were noted in 20% of ulnar nerve entrapment cases. Medial incongruity between the trochlea and the olecranon greater than or equal to 5 mm was found in 29% of CUTS cases and in 6% of normal elbows. The presence of posttraumatic elbow-joint deformities seen on radiographs correlated significantly with the degree of clinical involvement. Depth and area measurements of ulnar nerve compression, performed using a line-art representation of the radiographs, showed a significant (P less than .0001) correlation between decrease in the area of the cubital tunnel and ulnar innervated muscle atrophy. These findings confirm the importance in this syndrome of both osteoarthritis and incongruity of the medial structures of the elbow joint.
对122例肘管综合征（CUTS）患者及33例正常肘部进行了完全屈曲并轻度外旋位的肘关节前后位X线片检查。在正常肘部研究中未发现内侧滑车唇骨赘，但在20%的尺神经卡压病例中发现有此情况。在29%的肘管综合征病例及6%的正常肘部中发现滑车与鹰嘴之间的内侧不协调大于或等于5mm。X线片上所见的创伤后肘关节畸形与临床受累程度显著相关。使用X线片的线条图对尺神经受压的深度和面积进行测量，结果显示肘管面积减小与尺神经支配肌肉萎缩之间存在显著相关性（P<0.0001）。这些发现证实了骨关节炎及肘关节内侧结构不协调在该综合征中的重要性。
