Ankylosing spondylosis - calcified sacrotuberous ligament

Case contributed by Dr Praveen Jha

Presentation

Chronic back, hip, and perineal pain. HLA-B27 positive. Previous diagnosis of ankylosing spondylitis.

Patient Data

Age: 60 years
Gender: Male
  • sclerosed bilateral sacroiliac joints
  • pencil-like calcifications extending from sacrum to ischial tuberosities, suggesting sacrotuberous ligament calcification
  • bilateral hip arthropathy

Case Discussion

One of the significant complications, apart from sacroilitis, in cases of ankylosing spondylosis is calcification of sacrotuberous and sacrospinous ligaments. This can cause pudendal canal entrapment, resulting in chronic perineal pain. It is important to recognizs and mention this finding if demonstrated.

Case courtesy: Dr. Abhijit Yadav, Dr. BL Yadav Imaging and Research Center, Satna

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Case information

rID: 29973
Published: 8th Jul 2014
Last edited: 2nd Oct 2018
Inclusion in quiz mode: Included

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