Document Detail

Measurement of exercise tolerance on the treadmill in patients with symptomatic lumbar spinal stenosis: a useful indicator of functional status and surgical outcome.
MedLine Citation:
PMID:  7782845     Owner:  NLM     Status:  MEDLINE    
A prospective study of patients with neurogenic claudication and lumbar spinal stenosis was undertaken to determine whether measurement of exercise tolerance on the treadmill would be useful in defining baseline functional status and response to surgical treatment. Twenty patients with an average age of 73 years, all of whom had intractable neurogenic claudication and radiographically confirmed severe lumbar spinal stenosis, were studied. Lumbar decompressive laminectomy was performed in all patients. Preoperatively and 2 months postoperatively, quantitative assessment of ambulation was conducted on a treadmill at 0 degree ramp incline at two different speeds: 1.2 mph and the patient's preferred walking speed. The following information was recorded: time to first symptoms, time to severe symptoms, and nature of symptoms (leg pain, back pain, or generalized fatigue). The examination was stopped after 15 minutes or at the onset of severe symptoms. In the preoperative 1.2-mph trial, the mean time to first symptoms was 2.68 minutes (median 1.31) and the mean time to severe symptoms was 5.47 minutes (median 3.42). In the postoperative trial at the same speed, 13 patients (65%) were able to walk symptom free for 15 minutes. The mean time to first symptoms was 11.12 minutes (median 15) and the mean time to severe symptoms was 11.81 minutes (median 15). Similar findings were recorded in the preferred walking-speed trials. There were no complications from the treadmill testing procedure. These findings indicate that exercise stress testing on a treadmill is a safe, easily administered, and quantifiable means of assessing baseline functional status and outcome following laminectomy in patients with symptomatic lumbar spinal stenosis.
H G Deen; R S Zimmerman; M K Lyons; M C McPhee; J L Verheijde; S M Lemens
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Journal of neurosurgery     Volume:  83     ISSN:  0022-3085     ISO Abbreviation:  J. Neurosurg.     Publication Date:  1995 Jul 
Date Detail:
Created Date:  1995-07-20     Completed Date:  1995-07-20     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0253357     Medline TA:  J Neurosurg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  27-30     Citation Subset:  AIM; IM    
Department of Neurosurgery, Mayo Clinic Scottsdale, Arizona, USA.
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MeSH Terms
Aged, 80 and over
Exercise Test
Exercise Tolerance / physiology*
Laminectomy / rehabilitation*
Lumbar Vertebrae / radiography,  surgery
Middle Aged
Postoperative Period
Prospective Studies
Spinal Stenosis / physiopathology*,  rehabilitation,  surgery*
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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