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Article
June 1976

Division of the Pyriformis Muscle for the Treatment of SciaticaPostlaminectomy Syndrome and Osteoarthritis of the Spine

Author Affiliations

From the Surgical Service, Veterans Administration Hospital, Des Moines, Iowa, and the Department of Orthopedic Surgery, Keio University, School of Medicine, Tokyo.

Arch Surg. 1976;111(6):719-722. doi:10.1001/archsurg.1976.01360240099019
Abstract

• Division of the pyriformis muscle at its tendinous insertion was employed for the treatment of sciatica in 14 patients with postlaminectomy syndrome and osteoarthritis of the spine. Of these patients, 85% had satisfactory results. It is logical that the pyriformis muscle can play an important role in the production of sciatica associated with intraspinal lesions. Tension on the sciatic nerve, which passes in close approximation to the pyriformis muscle anteriorly, can be relieved by division of the pyriformis muscle.

(Arch Surg 111:719-720, 1976)

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