Scaling Marker Position Determines the Accuracy of Digital Templating for Total Hip Arthroplasty.

ABSTRACT:

Background

Digital templating systems foster patient-specific measurements for preoperative planning.

Questions/purposes

We aim (1) to verify the accuracy of a templating system, (2) to describe the effects of scaling marker position on the accuracy of digital templating of the hip, and (3) to provide a practical guide for scaling marker position using patient body mass index (BMI).

Methods

A scaling sphere was placed in five positions along the anterior-posterior axis of an acetabular implant and pelvis phantom, and x-rays were obtained. Each radiograph was templated for the acetabular component and recorded. A retrospective review identified CT scans of preoperative hip arthroplasty cases. The center of the greater trochanter was calculated from these CT scans as th

SUBMITTER: Ramme AJ 

PROVIDER: S-EPMC5786590 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature