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Related Experiment Video

Updated: May 28, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
09:51

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

Published on: September 7, 2022

Does previous reconstructive surgery influence functional improvement and deformity correction after periacetabular

Gregory G Polkowski1, Eduardo N Novais, Young-Jo Kim

  • 1Department of Orthopaedic Surgery, New England Musculoskeletal Institute, University of Connecticut Health Center, Farmington, CT, USA.

Clinical Orthopaedics and Related Research
|November 2, 2011
PubMed
Summary

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Bernese periacetabular osteotomy (PAO) can improve hip function and correct dysplasia after prior hip surgery. However, these complex procedures carry a significant risk of complications and reoperations.

Area of Science:

  • Orthopedic surgery
  • Hip reconstruction
  • Acetabular dysplasia treatment

Background:

  • Bernese periacetabular osteotomy (PAO) is a standard treatment for acetabular dysplasia.
  • Its effectiveness in patients with prior pelvic or femoral osteotomies and severe deformities remains unclear.

Purpose of the Study:

  • To evaluate hip pain, function, and radiographic correction after PAO in patients with previous reconstructive hip surgery.
  • To assess complications, reoperations, and early failures (conversion to total hip arthroplasty - THA).

Main Methods:

  • Retrospective review of 67 PAOs in 63 patients who had prior reconstructive hip surgery.
  • Comparison of pre- and post-operative hip scores and radiographic parameters.
  • Minimum 2-year follow-up, recording complications and revision surgeries.

Related Experiment Videos

Last Updated: May 28, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
09:51

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

Published on: September 7, 2022

Main Results:

  • Average Harris hip score improved by 11 points; 83% reported minimal pain post-operatively.
  • Significant radiographic improvements observed in lateral center-edge angle, anterior center-edge angle, Tönnis angle, and hip center medialization.
  • 8% of hips were converted to THA; 19% experienced complications, and 10% required reoperation.

Conclusions:

  • PAO effectively improves function and corrects dysplasia in hips with prior reconstructive surgery.
  • These procedures are more complex than primary PAO, with a notable risk of complications, reoperations, and early failures.