The 20-year results of the first 400 Conserve Plus hip resurfacing arthroplasties.

Aims: Adverse local tissue reactions associated with abnormal wear considerably slowed down the general use of metal-on-metal (MoM) hip resurfacing arthroplasty (HRA), now limited to a few specialized centres. In this study, we provide the clinical results of 400 consecutive MoM HRAs implanted more than 20 years ago in one such centre.

Methods: A total of 355 patients (400 hips) were treated with Conserve Plus HRA between November 1996 and November 2000.

What are the results of revised hip resurfacing arthroplasties?

Aims: Hip resurfacing arthroplasty (HRA) is typically indicated for young and active patients. Due to the longevity of arthroplasty, these patients are likely to undergo revision surgery during their lifetime. There is a paucity of information on the long-term outcome of revision surgeries performed after failed HRA.

Long-term results of metal-on-metal hip resurfacing in patients 65 years of age or older.

Background: Metal-on-metal hip resurfacing arthroplasty (MMHRA) is typically used in young and active patients because they have the most to gain from this bone-preserving procedure. However, there is very little long-term data on the performance of MMHRA in patients 65 years of age or older because of the efficacy of conventional total hip arthroplasty in this patient population.

Methods: 109 patients (124 hips) age ⩾65 years were treated with Conserve Plus MMHRA.

Effects of physical activity on long-term survivorship after metal-on-metal hip resurfacing arthroplasty: is it safe to return to sports?

Aims: In previous studies, we identified multiple factors influencing the survivorship of hip resurfacing arthroplasties (HRAs), such as initial anatomical conditions and surgical technique. In addition, the University of California, Los Angeles (UCLA) activity score presents a ceiling effect, so a better quantification of activity is important to determine which activities may be advisable or detrimental to the recovered patient. We aimed to determine the effect of specific groups of sporting activities on the survivorship free of aseptic failure of a large series of HRA.