Division of the pyriformis muscle for the treatment of sciatica. Postlaminectomy syndrome and osteoarthritis of the spine
T. Mizuguchi
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 sciatic 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.
