Development and validation of a navigational guidance system for acetabular implant placement

During the past year our group has been developing HipNav, a system which helps surgeons determine optimal, patient-specific acetabular implant placement and accurately achieve the desired implant placement during surgery. HipNav includes three components: a pre-operative planner, a range of motion simulator, and an intra-operative tracking and guidance system. The goals of the current HipNav system are to: 1) reduce dislocations following total hip replacement surgery due to acetabular malposition; 2) determine and potentially increase the “safe” range of motion; 3) reduce wear debris resulting from impingement of the implant’s femoral neck with the acetabular rim; and 4) track in real-time the position of the pelvis and acetabulum during surgery. The original implementation of the HipNav system was a proof-of-concept prototype which was useful for demonstrating the efficacy of this technology in-vitro. As the HipNav system progressed towards a clinical implementation, our effor...

• Type: Conference
• Year: 1997
• Where: CVRMED
• Authors: David A. Simon, Branislav Jaramaz, Mike Blackwell, F. Morgan, Anthony M. DiGioia, E. Kischell, Bruce Colgan, Takeo Kanade
• Keywords: Computer Vision, CVRMED 1997, Implant Placement, Patient-specific Acetabular Implant, Proof-of-concept Prototype