Paper 146: Effect of a Biplanar Osteotomy of Primary Stability Following High Tibial Osteotomy

Abstract

Open-wedge high tibial osteotomy (HTO) is becoming increasingly popular for the treatment of varus gonarthrosis in the active patient. Various implants can be used that differ with regard to fixation stability, design and osteotomy technique. The use of a rigid plate fixator in conjunction with a biplanar osteotomy is reported to offer excellent clinical results. Clinically, it is hypothesized that the biplanar osteotomy increases primary stability in the sagittal plane thus promoting bone healing. So far, there are no biomechanical studies that quantify the stabilizing effect of a biplanar versus uniplanar osteotomy.