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F wave studies of neurogenic intermittent claudication in lumbar spinal stenosis
BAL S; CELIKER R; PALAOGLU S; CILA A
AM J PHYS MED REHABIL , 2006, vol. 85, n° 2, p. 135-140 Doc n°: 123981 Localisation : Documentation IRR Descripteurs : CE55 - CANAL LOMBAIRE ETROIT, DF231 - CLAUDICATION Lumbar spinal stenosis (LSS) may result in neurogenic which is thought to be a result of transient ischemia claudication (NC), during exercise. In this study we evaluated the changes in F wave studies before and immediately after walking stress in patients with NC. Design: Twenty-six patients with LSS who had signs and symptoms of NC and 20 healthy volunteers were included in this study. Routine motor and sensory nerve conduction studies and tibial F wave studies were performed in both groups. Immediately after walking stress test, tibial F wave studies were repeated. Exercise treadmill protocol was used for ambulation. Time to first symptoms and total ambulation time were recorded. Results: After completion of the baseline electrophysiological examination, a walking stress test was performed using a treadmill, and 16 patients (61.5%) experienced neurogenic claudication during the trial. The mean time to first symptoms was 2.0 +/- 3.5 mins (minimum = 0, maximum = 14). In the control group 18 subjects (90%) completed the trial without any symptoms, and 2 (10%) subjects had to stop at an average of 10 mins because of generalized fatigue. Within 5 mins after the walking stress test, tibial F wave studies were repeated in both groups. There were significant increases in F latency values bilaterally in the patient group (P = 0.001 for both sides) but not in control subjects (P = 0.435 for right side and P = 0.122 for left side). Conclusion: Our data suggest that F wave studies after walking stress test provide more information for the diagnosis of NC. Langue : ANGLAIS |
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