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Knee. 2003 Mar;10(1):55-60.

The effect of component malalignment on the clinical and radiological outcome of the Kinemax total knee replacement.

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  • 1Royal National Orthopaedic Hospital, Brockley Hill, Stanmore HA7 4LP, UK. marcus@bankes.org.uk


Component angles of 198 Kinemax total knee replacements were measured from standard short leg radiographs. An ideal tibio-femoral angle of between 4 and 10 degrees of valgus was achieved in 64.6% of patients. After an average follow-up of 6.5 years (range 4.5 to 9.5), there was no significant difference between knees in acceptable and suboptimal alignment in terms of pre- and post-operative knee and function scores and prevalence of radiolucent lines. Varus placement of the tibial component was significantly more common by trainee surgeons (P<0.001).

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