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Spinal claudication versus arterial claudication

M Maher1, D J Hehir, P Neary

  • 1Department of Surgery, University College, Cork, Ireland.

Irish Journal of Medical Science
|April 1, 1996
PubMed
Summary
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Atypical leg pain during exercise may indicate spinal stenosis, not just vascular issues. Treadmill stress tests can help differentiate, revealing spinal canal disorders as a common cause.

Area of Science:

  • Vascular Medicine
  • Neurology
  • Orthopedics

Background:

  • Peripheral vascular function is often assessed using treadmill exercise stress tests.
  • Atypical claudication-like symptoms can present diagnostic challenges.

Purpose of the Study:

  • To evaluate the utility of treadmill exercise stress tests in diagnosing peripheral vascular function.
  • To investigate the differential diagnosis of atypical leg pain, particularly differentiating vascular disease from spinal stenosis.

Main Methods:

  • Ninety-three treadmill exercise stress tests were conducted.
  • Thirty-one patients with atypical claudication-like symptoms were specifically analyzed.
  • Diagnostic outcomes were compared with final clinical diagnoses.

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Main Results:

  • Twenty-five patients (81%) with atypical symptoms had negative stress tests, indicating a non-vascular origin.
  • Spinal stenosis was diagnosed in 13 of these 31 patients (42%).
  • Four patients had combined peripheral occlusive arterial disease and spinal stenosis, with spinal stenosis being predominant.

Conclusions:

  • Atypical presentations of intermittent claudication warrant consideration of spinal canal disorders.
  • Treadmill stress tests can be valuable in identifying non-vascular causes like spinal stenosis.
  • Further investigation for spinal stenosis is recommended in patients with atypical claudication symptoms.