Exercise Intervention Targeting Hip Strengthening Compared to Usual Care in Patients Undergoing Revision Hip Replacement

There is sparse evidence on revision total hip replacement (THR), regarding theeffectiveness on pain and function, and no consensus exists on optimal rehabilitationafter revision THR. Revision THR is one of the more technically challenging orthopedicsurgeries and patients undergoing revision THR report improvements in pain and function.Nevertheless, patients undergoing revision THR achieve worse clinical outcomes on hippain and function compared to patients undergoing primary THR. This calls for researchexploring different rehabilitation approaches, in order to improve clinical outcomes forpatients after revision THR.This study aims to compare the clinical effectiveness of a partly tele‐delivered exerciseintervention targeting hip strengthening with the standard community‐based rehabilitation(usual care) in patients undergoing revision THR.This randomized, controlled, assessor‐blinded trial is a multicenter trial involvinghospitals and municipality rehabilitation centers across Denmark. Eligible patientsundergoing revision THR will be randomized into two groups: A partly remotely‐deliveredhip strengthening rehabilitation intervention (strength group) or usual care (controlgroup).The exercise intervention targeting hip strengthening will partly follow theNeuromuscular Exercise (NEMEX) program as described by Eva Ageberg et al., and theintervention is further modified based on expert opinion from patients' experience withrehabilitation from a prior qualitative study. Usual care consists of rehabilitation inthe municipalities, where it is up to the individual physiotherapist and the municipalityto organize the rehabilitation, which is why both type, content, and duration may vary.The primary outcome will be change in functional performance measured by the 30‐secondChair Stand Test. Outcomes will be measured at baseline, after 16 weeks of intervention,and at 12‐month follow‐up.The investigators hypothesize that the exercise intervention targeting hip strengtheningis superior to usual care in improving physical function measured with the 30‐secondChair Stand Test at 16‐week follow‐up.