People with ankylosing spondylitis have low dislocation rate after hip replacement

Dislocations after total hip replacement in people with ankylosing spondylitis were infrequent and less than expected at 20-year follow-up, according to findings presented at a meeting of surgeons in the US.

A team looked at 337 hips from 238 people with ankylosing spondylitis who had a hip replacement.

Five years after the surgery the incidence of revision or removal was 3%, reoperation for any reason was 5% and dislocation was 2.5%. Then, 20 years after the surgery the incidence was 20% for revision or removal for any reason, 23% for reoperation for any reason and 3.3% for dislocation.

The surgery generally had a great impact on quality of life, the researchers explain:

“Pain levels significantly improved at final follow-up in nearly all patients with 90% of patients reporting no pain or slight pain.”

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