Dreyfuss U, Kessler I
J Bone Joint Surg Br. 1978 Feb;60(1):56-7. doi: 10.1302/0301-620X.60B1.627579.
Two cases of unusual snapping at the elbow are described. In both, the medial head of the triceps was found to be separated from the main muscle belly. During flexion of the elbow, the medial head dislocated over the medial epicondyle, producing a characteristic snapping phenomenon. Both cases were of long standing and had been asymptomatic for years. The first clinical symptoms were those of an ulnar neuropathy. In order to restore the normal position of the medial head of the triceps, its tendon was detached from the olecranon, passed under the central tendon and interlaced to it. The ulnar nerve was left in the epicondylar groove in one case and transposed anteriorly in the other. At the end of the procedure flexion of the elbow was unobstructed and the snapping phenomenon had disappeared.
本文描述了两例肘部罕见弹响的病例。在这两例病例中，均发现肱三头肌内侧头与主要肌腹分离。在肘关节屈曲时，内侧头在内上髁上方脱位，产生特征性的弹响现象。两例均病程较长，多年来一直无症状。首发临床症状为尺神经病变症状。为恢复肱三头肌内侧头的正常位置，将其肌腱从鹰嘴处分离，穿过中央肌腱下方并与之交织。其中一例尺神经留在髁上沟，另一例则向前移位。手术结束时，肘关节屈曲不受阻碍，弹响现象消失。
