Wood, P. L. R., Sutton, Carley, Mishra, V. and Suneja, R. (2009) A randomised, controlled trial of two mobile-bearing total ankle replacements. Journal of Bone and Joint Surgery - British Volume, 91-B (1). pp. 69-74. ISSN 0301-620X
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Official URL: http://www.bjj.boneandjoint.org.uk/content/91-B/1/...
We describe the results of a randomised, prospective study of 200 ankle replacements carried out between March 2000 and July 2003 at a single centre to compare the Buechel-Pappas (BP) and the Scandinavian Total Ankle Replacement (STAR) implant with a minimum follow-up of 36 months. The two prostheses were similar in design consisting of three components with a meniscal polyethylene bearing which was highly congruent on its planar tibial surface and on its curved talar surface. However, the designs were markedly different with respect to the geometry of the articular surface of the talus and its overall shape.
A total of 16 ankles (18%) was revised, of which 12 were from the BP group and four of the STAR group. The six-year survivorship of the BP design was 79% (95% confidence interval (CI) 63.4 to 88.5 and of the STAR 95% (95% CI 87.2 to 98.1). The difference did not reach statistical significance (p = 0.09). However, varus or valgus deformity before surgery did have a significant effect) (p = 0.02) on survivorship in both groups, with the likelihood of revision being directly proportional to the size of the angular deformity. Our findings support previous studies which suggested that total ankle replacement should be undertaken with extreme caution in the presence of marked varus or valgus deformity.
|Additional Information:||Public Health and Clinical Sciences|
|Schools:||College of Business, Law & Applied Social Studies > School of Management|
|Deposited By:||Chris J Sutton|
|Deposited On:||27 May 2010 11:20|
|Last Modified:||09 Aug 2016 15:12|
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