Drop foot due to lumbar degenerative disease: Painless drop foot is difficult to recover.

Objective: To evaluate the improvement of drop foot following lumbar decompression surgery and determine the prognostic factors that might influence the recovery of drop foot.

Summary And Background Date: Drop foot is a common but serious problem that can lead to deteriorate patient's daily activities. There are numerous studied regarding the prognostic factors for the recovery of drop foot.

Combined measurement of nerve root blood flow and electrophysiological values: intraoperative straight-leg-raising test for lumbar disc herniation.

Study Design: A total of 15 patients with lumbar disc herniation at the L5-S1 disc level who underwent microendoscopic discectomy were examined. The nerve root blood flow and electrophysiological values were measured during an intraoperative straight-leg-raising (SLR) test.

Objective: To investigate the relationships between nerve root blood flow changes and the electrophysiological values during an intraoperative SLR test.

Neurogenic intermittent claudication in lumbar spinal canal stenosis: the clinical relationship between the local pressure of the intervertebral foramen and the clinical findings in lumbar spinal canal stenosis.

Study Design: The clinical relationship between the local pressure of the intervertebral foramen and the clinical findings in lumbar spinal canal stenosis were evaluated.

Objective: To investigate the pathogenesis of neurogenic intermittent claudication in lumbar spinal canal stenosis.

Summary Of Background Data: The genesis of neurogenic intermittent claudication is generally considered to result from nerve root ischemia; however, the exact pathogenesis of neurogenic intermittent claudication remains uncertain.