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Schober's sign

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A rheumatologic test of lower back flexibility mainly used with ankylosing spondylitis (Bekhterev or Marie-Strümpell disease). With the patient standing, the spine is marked in two places, 10 cm above and 5 cm below the fifth lumbar vertebra. The patient is then asked to bend forward as deeply as possible. If the distance between the two points is now <20 cm, there is decreased movement in the spine.

We thank Jacob F. de Wolff for information submitted.


  • P. Schober:
    Lendenwirbelsäule und Kreuzschmerzen.
    Münchener mediziniche Wochenschrift, Stuttgart, 1937, 9: 336-338.

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