Erratum to “Basic biomechanics of human joints: Hips, knees and the spine” [Current Orthopaedics (2006) 20, 23–31

Abstract

The Authors regret that some errors appeared in the published version of the above article. The paragraph on page 28 of the article entitled ‘‘Varus/valgus positioning and lift-off’’ should read as follows. In the natural knee, it is generally considered that 60% of the load is transferred through the medial condyle while 40% is transferred through the lateral condyle. In a knee with valgus deformity (knock-kneed), the biomechanics and of the knee have changed significantly so that the majority of the load is transferred through the lateral condyle. In contrast in a knee with a varus deformity (bow-legged), the majority of the load is transferred through the medial condyle. Following knee replacement the loading on the tibial insert should be restored to as normal as possible. Edge loading of the polyethylene tibial insert caused by a varus/valgus deformity or by condylar lift-off has been shown in in vitro studies to cause accelerated wear of the polyethylene and should, therefore, be avoided. A