Keywords:
Bones, Artificial Intelligence, Pelvis, CT, Computer Applications-Virtual imaging, Surgery, Prostheses, Trauma
Authors:
M. Feeney1, M. Galea1, K. Phan2, A. Hardidge1; 1VIC/AU, 2NSW/AU
DOI:
10.26044/ranzcr2019/R-0093
Purpose
Computer-navigated total hip arthroplasty (THA) is an increasingly common surgical procedure. One of the current iterations of computer navigation requires temporary intra-osseous pins to be drilled into the iliac crest in order to attach reference arrays to the iliac crest to allow for digital mapping and planning. Currently there is no formal approach for selecting the point along the iliac crest, or the angles and depth when drilling these pins.
This study aimed to use 3D reconstructions of CT pelvis studies in order to formally define the ‘safe zone’ for pin insertion. This ‘safe zone’ will provide the optimal location along the iliac crest, angle(s), and depth of insertion to maximise pin containment within the iliac wing. The definition of the 'safe zone' should be relative to palpable landmarks in order to facilitate intra-operative localisation.
Primary hypothesis: there is a ’safe zone’ for the drilling of intraosseous pins into the iliac crest that will differ between male and female patients.