Read Complete Study Here Results of Conserve Plus Hip Resurfacing: prospective clinical, radiographic and ion study.  Somers JF, Vanbiervliet J, Lefevere F. We report the 3- to 5-year clinical results of 42 hip resurfacing arthroplasties using the Conserve Plus from one surgeon series… …This independent series of Conserve Plus HRA confirms good results at short- to mid-term with excellent wear characteristics. Results for avascular necrosis were equal to those for osteoarthritis…