• Anne J H Vochteloo, DieuDonné Niesten, Roeland Riedijk, Willard J Rijnberg, Stefan B T Bolder, Sander Koëter, Keetie Kremers-van de Hei, Taco Gosens, and Peter Pilot.
• Department of Orthopaedics, Reinier de Graaf Gasthuis Delft, Delft, The Netherlands. ajhvochteloo@rdgg.nl
• Bmc Musculoskel Dis. 2009 Jan 1;10:56.

BackgroundA discussion is ongoing whether displaced femoral neck fractures in elderly patients should be treated with a non-cemented or a cemented hemiarthroplasty. A recent Cochrane analysis stresses the importance of further research into the relative merits of these techniques. We hypothesise that non-cemented hemiarthroplasty will result in at least the same technical-functional outcome and complication rate, with a shorter operation time.Methods And DesignA randomised controlled multicentre trial will be performed.The study population consists of 200 patients of 70 years and older. Patients with a displaced femoral neck fracture will be allocated randomly to have a cemented or a non-cemented hemiarthroplasty. Data will be collected preoperatively, immediately postoperatively, and 6 weeks, 3 months and 1 year postoperatively.The main outcome measures of this study are technical-functional results of the hemiarthroplasty, duration of surgery, complications, and mid-thigh pain. Secondary outcome measures are living conditions at final follow up, self-reported health-related quality of life, and radiological evaluation of the hemiarthroplasty.ConclusionA recent Cochrane analysis did not find arguments in favour of either non-cemented or cemented hemiarthroplasty. The forthcoming trial will compare treatment for a displaced femoral neck fracture by cemented versus non-cemented hemiarthroplasty. Our results will be published as soon as they become available.Trial RegistrationTrial Registration Number NTR1508.

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