EP1.37 Quantifying Wait Times from Referral to Reconstruction in Periacetabular Osteotomy Pathways: A Retrospective Cohort Study

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ID: 331289
2026
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Abstract
Abstract Introduction Periacetabular osteotomy (PAO) is an effective joint-preserving procedure for symptomatic acetabular dysplasia. Timely surgical intervention is critical to optimise outcomes and prevent progression of secondary osteoarthritis which can require total hip replacement (THR). However, limited surgical capacity and increasing demand have contributed to prolonged wait times which can lead to worsened quality of life for patients (QoL). This study aims to characterise current PAO wait times and patients journey from referral onwards. We also sought to identify patient outcomes; whether PAO or another procedure. Methods A retrospective review was conducted of patients waitlisted for PAO between September 2012-August 2022 at a national, tertiary referral hip preservation centre. Clinical and referral data was collected, including time intervals from referral to surgery and any subsequent interventions. Results 192 hips in 175 patients were identified as waitlisted for PAO on institutional database over a 10-year period. Of these 159 PAOs were performed in 142 patients up to September 2025. Patients waited an average of 739 days from referral date to date of first PAO with wait times increasing since 2020. While on the waiting list, 42 patients underwent another procedure: 34 hip arthroscopies and 8 hip injections. 19 patients were removed from the waiting list: 1 patient passed away while awaiting surgery, 3 patients underwent PAO in the private sector, 12 underwent THR and the others declined surgery. Likelihood of THR was correlated with waiting time. Following PAO, 9 patients underwent hip arthroscopy at 6.1 years (0.6-12.1 years) and 8 patients THR at 6.9 years post PAO (3.5-12.5 years). Length of wait did not correlate with duration of surgery, length of stay or further surgery. Conclusion Lengthy wait times for PAO may compromise clinical outcomes and patient QoL. Efforts to streamline referral pathways and expand surgical capacity are warranted to ensure timely access to joint-preserving care.
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Authors
Journal Journal of hip preservation surgery
Year 2026
DOI
10.1093/jhps/hnag043.221
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