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General Orthopaedics

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Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_4 | Pages 41 - 41
1 Apr 2019
Vigdorchik J Cizmic Z Elbuluk A Bradley M Miranda M Watson D Dennis D Kreuzer S
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Introduction

The purpose of this study was to compare pre-operative acetabular cup parameters using this novel dynamic imaging sequence to the Lewinnek safe zone

Methods

We retrospectively reviewed 350 consecutive primary THAs that underwent dynamic pre-operative acetabular cup planning utilizing a pre-operative CT scan to capture the individual's hip anatomy, followed by standing (posterior pelvic tilt), sitting (anterior pelvic tilt), and supine X-rays. Using these inputs, we modeled an optimal cup position for each patient. Radiographic parameters including inclination, anteversion, pelvic tilt, pelvic incidence, and lumbar flexion were analyzed.