抄録
A case of saphenous nerve entrapment was reported.
Man, 19, had suddenly paresthesia in the medial aspect of the right knee, leg and foot while doing “shodo” (Japanese calligraphy).
The paresthesia became progressively worse with development of pain and limitation of flexion of the knee joint.
Some conservative therapy such as nerve block with predonisolon and the use of other anti-inflammatry agent prodused no relief.
In the bloodless field the saphenous nerve was showed constriction at its emergence through the subsartorial fascia. After the nerve was released through a wide incision in the fascia, pain and paresthesia rapidly disappered.
