Large-size hip articulations may improve range of motion (ROM) and function compared to a 28-mm THA, and the low risk of dislocation allows the patients more activity postoperatively. On the other hand, the greater extent of surgery for resurfacing hip arthroplasty (RHA) could impair rehabilitation. We investigated the effect of head size and surgical procedure on postoperative rehabilitation in a randomized clinical trial (RCT). Methods We followed randomized groups of RHAs, large-head THAs and standard THAs at 2 months, 6 months, 1 and 2 years postoperatively, recording clinical rehabilitation parameters.
Arthroplasty, Replacement, Hip; Female; Hip Joint; Hip Prosthesis; Humans; Male; Middle Aged; Osteoarthritis, Hip; Prosthesis Design; Range of Motion, Articular; Recovery of Function; Treatment Outcome