PAO 20-year follow-up

Mean 20-year followup of Bernese periacetabular osteotomy.

Steppacher SD, Tannast M, Ganz R, et al. Clinical orthopaedics and related research 2008 · PMID 18449617 · doi:10.1007/s11999-008-0242-3

Question

What is the long-term hip survivorship after Bernese periacetabular osteotomy for dysplasia?

Design

Long-term follow-up of the original Bern PAO case series.

Patients

The first patients who underwent PAO for hip dysplasia in Bern.

Intervention

Bernese periacetabular osteotomy

Comparison

None

Primary outcome

Survivorship free of conversion to total hip arthroplasty at around 20 years

Key result

Roughly 60% of hips were preserved at 20 years, and older age, poorer preoperative function and pre-existing arthritis predicted failure.

Limitations

Single-centre series including the surgeons' learning curve, with no comparison group.

Impact on practice

Supports offering PAO for dysplasia mainly to younger patients without established osteoarthritis, and informs counselling on long-term outcomes.