Navigation in hip resurfacing: report of initial results

摘要

Introduction: Use of the Birmingham Hip Resurfacing implant system was approved in the United States by the FDA in May of 2006. A computer assisted surgery (CAS) software program has been developed to enable navigation of the hip resurfacing procedure, primarily the placement of the pin which secures the hip resurfacing implant into the femoral head. That software is the Brain-LAB Vector Vision Hip SR package. The goal of navigation in hip resurfacing is to overcome some of the challenges associated with conventional hip resurfacing and improve patient outcomes by preventing femoral neck notching. With the BrainLAB Vector Vision Hip SR software package, the surgeon uses a pre-calibrated CAS drill guide to navigate the central pin directly to the planned position with millimeter precision. The software provides the surgeon with real-time risk information, warning the surgeon if the implant position does not correspond to the treatment plan. The optimal position of the head implant can be easily defined by controlling in varus/valgus position and depth of the femur component in real-time.