Efficacy of periacetabular osteotomy followed by progressive resistance training compared to progressive resistance training as non-surgical treatment in patients with hip dysplasia (PreserveHip) - a protocol for a randomised controlled trial

Lisa Cecilie Urup Reimer, Stig Storgaard Jakobsen, Louise Mortensen, Ulrik Dalgas, Julie Sandell Jacobsen, Kjeld Soballe, Tone Bere, Jan Erik Madsen, Lars Nordsletten, May Arna Risberg, Inger Mechlenburg, Lisa Cecilie Urup Reimer, Stig Storgaard Jakobsen, Louise Mortensen, Ulrik Dalgas, Julie Sandell Jacobsen, Kjeld Soballe, Tone Bere, Jan Erik Madsen, Lars Nordsletten, May Arna Risberg, Inger Mechlenburg

Abstract

Introduction: Periacetabular osteotomy (PAO) is an established treatment for adolescent and adult patients with hip dysplasia. However, the efficacy of PAO has not been tested against another surgical intervention or conservative treatment in a randomised controlled trial before. We suggest that progressive resistance training (PRT) could be an alternative to PAO. The primary aim of this trial is therefore to examine the efficacy of PAO followed by 4 months of usual care followed by 8 months of PRT compared to 12 months of solely PRT in patients with hip dysplasia eligible for PAO in terms of patient-reported pain measured by The Copenhagen Hip and Groin Outcome Score (HAGOS).

Methods and analysis: This trial is a single-blinded multicentre randomised controlled clinical trial, where patients with hip dysplasia, who are eligible for PAO, will be randomised to either PAO followed by usual care and PRT or PRT only. Primary outcome is patient-reported pain, measured on the subscale pain on the HAGOS questionnaire 12 months after initiation of PAO or PRT. The key secondary outcomes are the other subscales of the HAGOS, adverse and serious adverse events, usage of painkillers (yes/no) and type of analgesics. Based on the sample size calculation, the trial needs to include 96 patients.

Ethics and dissemination: The trial is approved by the Central Denmark Region Committee on Biomedical Research Ethics (Journal No 1-10-72-234-18) and by the Danish Data Protection Agency (Journal No 1-16-02-120-19). The trial is also approved by The Regional Committee for Medical and Health Research Ethics, Region South-East Norway (Ref. 2018/1603). All results from this trial will be published in international peer-reviewed scientific journals regardless of whether the results are positive, negative or inconclusive.

Trial registration number: NCT03941171.

Keywords: PAO; hip; hip dysplasia; osteoarthritis; periacetabular osteotomy; progressive resistance training.

Conflict of interest statement

Competing interests: None declared.

© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

Figures

Figure 1
Figure 1
Patient flow through the trial.

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