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Osteoarthritis progression after rotational acetabular osteotomy not detected for at least 20 years
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In most hips with either preosteoarthritis or initial osteoarthritis, the progression of osteoarthritis after rotational acetabular osteotomy was not detected for at least 20 years, according to researchers’ findings.
Researchers performed 172 rotational acetabular osteotomies in 168 patients with acetabular dysplasia between June 1986 and August 1991. Clinical and radiographic findings were available for 93 hips, including 23 hips with preosteoarthritis (pre-OA), 29 with initial OA and 41 with advanced OA. Mean duration of follow-up was 23 years.
One hip with pre-OA, two hips with initial OA and 14 hips with advanced OA underwent conversion to total hip arthroplasty (THA) by 20 years after surgery. Results showed a significantly higher rate of conversion to THA among hips with advanced OA vs. hips in the other stages.
Ayumi Kaneuji
The researchers found no progression in the disease stage in 74% of hips with pre-OA, 66% with initial OA and 63% with advanced OA at the latest follow-up, or at conversion to THA. – by Casey Tingle
Disclosure: The researchers report no relevant financial disclosures.
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