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Posture in Advanced Ankylosing Spondylitis

Normal posture compared to the posture of advanced ankylosing spondylitis.

As severe ankylosing spondylitis advances:

  • The head moves forward and the neck becomes stiff.
  • The upper back curves forward (kyphosis).
  • The normal curve in the low back flattens.
  • The hips may become stiff and not straighten completely.
  • People often keep their knees bent a little to make up for the changed curves in their back and stiffness in their hips. This bending of the knees causes the body to shift back a little so it's easier to balance and to see straight ahead.

Current as of: November 9, 2022

Author: Healthwise Staff
Medical Review:
E. Gregory Thompson MD - Internal Medicine
Martin J. Gabica MD - Family Medicine
Kathleen Romito MD - Family Medicine
Richa Dhawan MD - Rheumatology

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

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