肩甲上神経麻痺に対する知覚検査

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Ajmani and Horiguchi reported on a cutaneous branch of the suprascapular nerve supplying the proximal-lateral one-third of the arm. There is, however, no paper that reports on the relationships between the clinical symptoms and sensory disturbance in patients with suprascapular nerve palsy. We report on the usefulness of the evaluation of sensory function for suprascapular nerve palsy. We treated 60 patients with suprascapular nerve palsy from 1985 to 2005. To study the usefulness of evaluating the sensory function, we investigated the clinical progress and the results of the sensory disturbance in 7 cases with suprascapuar nerve palsy in which the sensory tests were done more than twice. As the sensory function, we evaluated the vibration thresholds, pain, light touch, and the sensation of heat and cold. In all the cases, we found atrophy of the infraspinatus muscle, dullness around the shoulder joint, tenderness at the entrapment point. Three cases had ganglions treated by a puncture. We diagnosed 4cases without a ganglion cyst as neuralgic amyotrophy from the characteristic clinical progress and electromyography. In the tests for evaluating the sensory function, there were no cases with abnormal vibration thresholds. There were 6 cases with hypalgesia and hypothermesthesia in the region of the posterior axilla and 5 cases with hypaesthesia in the same area. The evaluation of the sensory function for patients with suprascapular nerve palsy is useful to follow-up this palsy, because it is non-invasive, inexpensive, and sensitive compared with MRIs and electromyographies.
日本肩関節学会の論文

肩甲上神経麻痺に対する知覚検査

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