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|Scopus||Web of Science®|
|Title:||The 6-year migration characteristics of a hydroxyapatite-coated femoral stem: a radiostereometric analysis study|
|Citation:||Journal of Arthroplasty, 2012; 27(7):1344-1348|
|Publisher:||Churchill Livingstone Inc Medical Publishers|
|Stuart A. Callary, David G. Campbell, Graham E. Mercer, Kjell G. Nilsson, and John R. Field|
|Abstract:||A prospective cohort of 30 patients undergoing primary total hip arthroplasty for treatment of osteoarthritis was enrolled in a study to characterize the migration behavior of a clinically successful cementless stem. At 6 years, the mean subsidence of the stem was 0.63 mm (range, -0.33 to 3.68 mm); the mean rotation into retroversion was 1.41° (range, -1.33° to 7.48°). No stems had additional subsidence of more than 0.25 mm between 6 months and 6 years. The resultant mean subsidence between 2 and 6 years was 0.03 mm, which is below the limit measurable by radiostereometric analysis. The data demonstrate that subsidence of this cementless stem occurs within the first 6 months, after which there is persistent stabilization.|
|Keywords:||total hip arthroplasty; radiostereometric analysis; subsidence; stabilization.|
|Rights:||Copyright © 2012 Elsevier Inc. All rights reserved.|
|Appears in Collections:||Orthopaedics and Trauma publications|
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