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viagra 800mg reviews Tion. Katz jn, dalgas m, stucki g, katz np, bayley j, fossel ah, chang lc, lipson sj. Source brigham and women's hospital, boston, massachusetts 02115, usa. Abstract objective: to assess the value of the history and physical examination findings in the diagnosis of symptomatic degenerative lumbar spinal stenosis (lss). Methods: the study was performed in 3 specialty clinics, and included patients with low back pain who were at least age 40. Findings from a standardized history and physical examination were compared with the diagnostic impression of expert attending clinicians. Imaging studies were available in 88% of those with lss, and the findings further supported the diagnosis of lss in each case. The sensitivity, specificity, and likelihood ratio associated with each history and physical examination finding were calculated in bivariate analyses, and independent correlates of lss were identified with multivariate analyses. Results: ninety-three patients were evaluated. History findings most strongly associated with the diagnosis of lss (likelihood ratio > or = 2) were greater age, severe lower-extremity pain, and absence of pain when seated. Physical examination findings most strongly associated with the diagnosis were wide-based gait, abnormal romberg test result, thigh pain following 30 seconds of lumbar extension, and neuromuscular deficits. Independent correlates of lss included advanced age (p = 0. viagra for sale buy cheap viagra cheap viagra generic viagra online viagra without a doctor prescription cheap viagra online buy viagra online buy generic viagra viagra without a doctor prescription 0001), absence of pain when seated (p = 0. 006), wide-based gait (p = 0. 013), and thigh pain following 30 seconds of lumbar extension (p = 0. 002). Conclusion: specific history and physical examination findings are useful in the diagnosis of lss and should be ascertained routinely in older patients with low back pain. Pmid: 7575718 [pubmed - indexed for medline] publication types, mesh terms, grant support publication types research support, non-u. S. Gov't research support, u. S. Gov't, p. H. S. Mesh terms adult aged aged, 80 and over female humans lumbosacral region male medical records* middle aged multivariate analysis physical examination* predictive value of tests sensitivity and specificity spinal stenosis/diagnosis* spinal stenosis/epidemiology grant support ar-36308/ar/niams nih hhs/united states linkout - more resources full text sources ovid technologies, inc. Medical health checkup - medlineplus health information spinal stenosis - medlineplus health information supplemental content save items add to favorites loading related citations in pubmed a diagnostic support tool for lumbar spinal stenosis: a self-administered, self-reported history question.