Outcomes in patients with osteoarthritis treated with minimally invasive surgery vs a conventional posterior approach in total hip arthroplasty (hip replacement)

INTERVENTION: Patients presenting with primary hip osteoarthritis and requiring arthroplasty will be randomized to one of two groups. Randomization will be done using a random number generator and sealed envelopes. Patients will not be aware of which type of approach they will receive. Group 1 will receive the supercapsular percutaneously‐assisted total hip surgery SuperPath), a minimally invasive approach. Group 2 will be treated with a conventional posterior approach (Moore). Prior to surgery, every patient will be broadly informed about the course of the study, the possible risks and the right to withdraw at any moment. Harris hip score and Hip disability and osteoarthritis outcome score will be examined pre‐operative, 6 weeks postoperative and up to 6 months postoperative. Perioperative parameters (Hb, operation time, length of stay, NRS‐score) will also be investigated. One day after surgery, a routine X‐ray will be taken to measure prosthesis positioning. During data collection, the investigators will be blinded for the type of surgery that was administered. CONDITION: Total hip arthroplasty ; Musculoskeletal Diseases PRIMARY OUTCOME: Harris hip score and Hip disability and osteoarthritis outcome score at baseline, 6 weeks and up to 6 months postoperatively SECONDARY OUTCOME: ; 1. Radiograpic prosthesis positioning (cup abduction angle, stem alignment) measured using X‐ray one day after operation; 2. Perioperative parameters (Hb, transfusion rate, length of stay, NRS score, operation time) at the time of operation; INCLUSION CRITERIA: Symptomatic primary osteoarthritis severe enough to warrant total hip arthroplasty