3D-CT: A better map for hip surgery

Professor Alister Hart and colleagues explore the 3D-CT planning software available to surgeons in the context of hip and knee arthroplasties.

Introduction
When was the last time you consulted a road atlas? Nowadays we use Global Positioning Systems (GPS) for navigation. Similarly, in orthopedics, more and more surgeons are using specialized 3D-CT software to plan hip and knee arthroplasties, as the benefits of using such systems are becoming more recognized and CT technologies continue to improve. Some examples of commercially available CT- based 3D planning software include ZedHip (LEXI), mediCAD (HecTec), Hip-Plan (Symbios) and Ortoma Plan.
Although CT itself has been used for planning joint replacements for over 30 years [1], preoperative planning with 3D-CT is a more recent concept in orthopedics. The surgical planning potential of 3D-CT was first explored for craniofacial surgery in the 1980s after it was found that 3D reconstructions could be generated from CT data [2,3].
Since then, two main surgical applications of 3D-CT in orthopedics have been described. The first is 3D printing, where 3D-CT models can be used to create physical models that surgeons can hold in their hands and inspect [4,5]. These models may even be used to simulate surgery and for training purposes. The second is dedicated planning software that surgeons can feed patients‘ CT data into and produce detailed 3D-based surgical plans; these computed plans can then be modified and adjusted by surgeons according to … read more in the PDF Article!