Concurrent (tandem) cervical and lumbar spinal stenosis - A 10-yr review of 54 hospitalized patients

Objective: To determine the frequency of concurrent cervical and lumbar spinal stenosis (i.e., "tandem spinal stenosis" [TSS]) in a 10-yr review of hospital admissions. Design: In a retrospective study of 460,964 hospital admissions to our 1,000-bed academic community hospital, we identified a base population of 54 patients with TSS. These patients presented with multiple complaints, including neurogenic claudication, progressive gait disturbances, and neurologic signs of both upper and lower motor neuron dysfunction, among others. Since 1964 when TSS was first described, estimates of its frequency have varied widely, ranging from a low of 5% to a high of 28%. Results: Of the 54 cases of TSS identified among the 460,964 patient admissions during a 10-yr period, 36 were men and 18 were women. A total of 51 were >51 yrs of age. For all ages, the frequency rate of TSS in this series was 12 per 100,000 admissions. Conclusion: With TSS, the symptoms of either the cervical or the lumbar type initially predominate. Often, only after the primary pathology is treated does the secondary problem become evident. Although TSS occurred relatively infrequently in this series, its potential presence should not be overlooked.