OBJECTIVES A tailored accelerated physiotherapy (AP) program following Resurfacing Hip Arthroplasty (RHA) has been shown to be effective in improving hip function and range of motion in young male patients; however no evidence has been provided on its cost-effectiveness.  The aim of this UK trial-based economic evaluation was to assess the cost-effectiveness of AP versus a standard rehabilitation protocol (SRP). METHODS Trial participants were randomized post-RHA to AP or SRP. The experimental arm followed an 8-week programme with no hip precautions, full-weight bearing from day one, tailored exercises and an additional physiotherapy session. The control group received the standard 8-week course of rehabilitation.  At 6, 16, and 52 weeks, patients reported primary and secondary health care contacts, use of equipment, and private health care contacts.  These data were valued using 2012/2013 national average unit costs. The 3-level EuroQol EQ-5D questionnaire was completed by patients at baseline, 6, 16 and 52 weeks and used to calculate Quality Adjusted Life Years (QALYs) to 12 months. RESULTS