High tibial osteotomy and external fixator. ESSKA 1035-6. Epub 2006 Sep 2.

摘要

Dear EditorWe would like to comment on the article 'Primary stability of four different implants for opening wedge high tibial osteotomy' by Ag-neskirchner et al. . We would like to congratulate the authors for their contribution to the relevant literature.High tibial osteotomy (HTO) is an established method for treating varus gonarthrosis. Medial opening wedge techniques for HTOs have become popular in recent years. Various systems of internal fixation of medial HTO with the different but comparable success rate have reported in the current literature. One of the potential technical pitfalls of opening wedge procedure is inadvertent disruption of the lateral tibial cortex during distraction at the osteotomy site . Disruption of the lateral cortex resulted in increased micromation at the osteotomy site, and instability at the osteotomy site may contribute to the high rate of delayed union or nonunion associated with medial opening wedge HTO 7 Unharmed lateral hinge largely dictates the stability after HTO regardless of implant design . But orthopedic surgeons have always under the risk of lateral disruption during the open wedge HTO regardless of the implant design.