Embody Orthopaedic Ltd.

The goal of this randomised controlled trial is to compare the success of two types of hip replacement in patients with hip arthritis. The main question it aims to answer is whether a new type of hip replacement (called a hip resurfacing) can be as successful as an existing hip replacement (called a total hip replacement). Patients will be given either the new hip resurfacing or the existing total hip replacement and researchers will compare their function, complication rate and physical activity.

This is a prospective, non-randomized, consecutive series, multicentre, observational study to evaluate the clinical outcome of ceramic-on- ceramic hip resurfacing arthroplasty using the ceramic, non-porous, non-cemented H1 Hip Resurfacing Arthroplasty. It includes a safety study followed by an efficacy study. Patients will be followed up for 10-years postoperatively.
The primary aim is to confirm the safety of the H1 hip resurfacing prosthesis by demonstrating non-inferiority of the H1 device in terms of survivorship.
The secondary is to evaluate superiority of the ceramic-on-ceramic H1 hip resurfacing prosthesis compared to Metal-on-Metal (MoM) hip resurfacing in terms of absence of metal ion release.The primary end point is revision for any reason.