Ask about any pain before examining.
A patient presents to ED with chest pain and this trace. What would you do?
Interpretation management
Demonstrate movements first.
Schober’s test
Mark midline 10cm above the dimples of Venus and 5cm below while standing, then re-measure distance in flexion (<5cm difference implies lumbar flexion limitation that may be due to ankylosing spondylitis if there are other symptoms/signs)
Femoral nerve stretch test
With patient prone, passively flex knee and extend hip (anterior thigh pain = femoral nerve compression/irritation, usually due to L2-4 disc herniation)
Straight leg raise
With patient supine, lift a leg to full flexion or until significant leg pain, then depress it slightly and passively dorsiflex foot (leg pain radiating down below knee = sciatic nerve irritation, usually due to L4-S1 disc herniation/facet joint impingement)
A patient presents to ED with chest pain and this trace. What would you do?
Interpretation management
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What are the extra-articular features of ankylosing spondylitis?
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You examine a patient with a positive sciatic nerve stretch test. What pathology does this indicate?
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Which investigations may be used to help differentiate the causes of back pain?
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What are the definitions of spondylolysis and spondylolisthesis?
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