Nutton, R. W. and van der Linden, Marietta and Rowe, P J and Gaston, P. and Wade, F. A. (2008) A prospective randomised double-blind study of functional outcome and range of flexion following total knee replacement with the NexGen standard and high flexion components. Journal of Bone and Joint Surgery - British Volume, 90-B (1). pp. 37-42. ISSN 0301-620X
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Official URL: http://dx.doi.org/10.1302/0301-620X.90B1.19702
Modifications in the design of knee replacements have been proposed in order to maximise flexion. We performed a prospective double-blind randomised controlled trial to compare the functional outcome, including maximum knee flexion, in patients receiving either a standard or a high flexion version of the NexGen legacy posterior stabilised total knee replacement. A total of 56 patients, half of whom received each design, were assessed pre-operatively and at one year after operation using knee scores and analysis of range of movement using electrogoniometry. For both implant designs there was a significant improvement in the function component of the knee scores (p < 0.001) and the maximum range of flexion when walking on the level, ascending and descending a slope or stairs (all p < 0.001), squatting (p = 0.020) and stepping into a bath (p = 0.024). There was no significant difference in outcome, including the maximum knee flexion, between patients receiving the standard and high flexion designs of this implant.
|Additional Information:||This study was supported by a grant from Zimmer Ltd.|
|Deposited On:||18 Sep 2009 12:00|
|Last Modified:||26 Aug 2011 12:30|
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