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European Journal of Orthopaedic Surgery & Traumatology

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01-05-2020 | Osteoarthritis of the Hip | Original Article

A new method for intraoperative assessment of leg length, sizing and placement of the components in total hip replacement

Authors: Ioannis P. Stathopoulos, Nicolaos Andrianopoulos, Dimitrios Paschaloglou, Kalliopi Lampropoulou-Adamidou, Maria Spetsaki, Ioannis K. Tsarouchas

Published in: European Journal of Orthopaedic Surgery & Traumatology | Issue 4/2020

Abstract

Background

Intraoperative radiograph of the pelvis is a well-established way to avoid misplacement/undersizing of the components and leg length discrepancy (LLD) in total hip replacement (THR). We describe a method for the obtainment and the evaluation of intraoperative radiographs with a sophisticated wireless radiographic system and a computerized digital tool originally used for preoperative templating.

Methods

In this retrospective case–control study, 60 patients with unilateral hip osteoarthritis who underwent THR with intraoperative radiographic check with the conventional method (n = 30, control group) or the new method (AGFA flat panel DR14eG™/Orthosize™, n = 30, case group) were evaluated and compared for operation time, intraoperative changes in size/placement of the components and final radiological outcome (LLD, acetabular inclination and femoral offset) based on postoperative radiographs of the pelvis.

Results

Mean operation time was lower in case group (85.3 min vs. 103.3 min, p value < 0.005), as well as mean absolute LLD (1.93 mm vs. 2.94 mm, p value = 0.242). There was a higher percentage of intraoperative changes in the offset of the prostheses’ head (70% vs. 40%, p value = 0.018) and a significantly lower percentage of patients with LLD > 5 mm in the case group (0% vs. 27%, p value = 0.002).

Conclusions

This new method for the obtainment and assessment of intraoperative radiographs proved to be fast and assuring for keeping LLD below 5 mm in all patients.

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Title: A new method for intraoperative assessment of leg length, sizing and placement of the components in total hip replacement
Authors: Ioannis P. Stathopoulos
Nicolaos Andrianopoulos
Dimitrios Paschaloglou
Kalliopi Lampropoulou-Adamidou
Maria Spetsaki
Ioannis K. Tsarouchas
Publication date: 01-05-2020
Publisher: Springer Paris
Keywords: Osteoarthritis of the Hip
Hip-TEP
Hip-TEP
Osteoarthritis of the Hip
Published in: European Journal of Orthopaedic Surgery & Traumatology / Issue 4/2020
Print ISSN: 1633-8065
Electronic ISSN: 1432-1068
DOI: https://doi.org/10.1007/s00590-019-02621-1

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

A new method for intraoperative assessment of leg length, sizing and placement of the components in total hip replacement

Abstract

Background

Methods

Results

Conclusions

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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