A simple mathematical standardized measurement of acetabulum anteversion after total hip arthroplasty
type: Item
instance of: scholarly article
title: A simple mathematical standardized measurement of acetabulum anteversion after total hip arthroplasty
zbMATH Open document ID: 1145.92324
DOI: 10.1080/17486700701865265
author: Chen-Kun Liaw
author: Rong-Sen Yang
author: Sheng-Mou Hou
author: Tai-Yin Wu
author: Chiou-Shann Fuh
published in: Computational \& Mathematical Methods in Medicine
publication date: 2008-08-15T00:00:00Z
full work available at URL: https://eudml.org/doc/228697
review text: Summary: We invented a standardization method to measure the cup's anteversion after total hip arthroplasty without the influence of the patient's position. We measured 68 radiographs of 10 patients after total hip replacement (THR) and calculated the error of each measurement, defined as the difference with the average of the same measuring method on the same patient. We also calculated the repeatability standard deviation (RSD) of each method according to the American Society for Testing and Materials, ASTM E691. The mean absolute inter-examination angle error, defined as the average of the absolute deviations, was \(0.75^\circ \) for standardized anteversion (range 0.03--2.51\(^\circ \)), as compared with those without standardization, \(2.30^\circ \) (range 0.04--13.04\(^\circ )\). The inter-examination measurement reliability (precision), defined as one RSD, was \(0.99^\circ \) for standardized anteversion, as compared with those without standarization, \(3.50^\circ \). There is no difference between patients four and five without \((p = 0.097)\). There is a significant difference with standardization \((p < 0.0001)\). Our study demonstrated that this mathematical method is a precise tool to measure the anteversion of the acetabular cup. We hope that it can be used widely in the future.
Mathematics Subject Classification ID: 92C50
Mathematics Subject Classification ID: 90-08
Mathematics Subject Classification ID: 62P10
zbMATH DE Number: 5312716
MaRDI profile type: Publication
OpenAlex ID: W2121512747
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description: scientific article; zbMATH DE number 5312716