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Orthopaedic Proceedings
Vol. 102-B, Issue SUPP_1 | Pages 29 - 29
1 Feb 2020
Abe I Shirai C
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Background

Accurate acetabular cup positioning is considered to be essential to prevent postoperative dislocation and improve the long-term outcome of total hip arthroplasty (THA). Recently various devices such as navigation systems and patient-specific guides have been used to ensure the accuracy of acetabular cup positioning.

Objectives

The present study evaluated the usefulness of CT-based three-dimensional THA preoperative planning for acetabular cup positioning.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_7 | Pages 5 - 5
1 May 2016
Abe I Shirai C
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Background

The femoral head center shift on reduction time in total hip arthroplasty (THA) causes alteration of the muscle tension around the hip joint. Many studies about the shift of the femoral head in the cranio-caudal direction or medio-lateral direction on coronal plane have been reported. It has been known widely that the shift on these directions influence tension of the abductor muscle around the hip joint. Nevertheless few studies about the three-dimensional shift including the antero-posterior direction have been reported.

Purpose

The purpose of this study is to evaluate the three-dimensional shift of the femoral head center in THA using three-dimensional THA templating software.