A Vertical Measurement System to Predict the Change in Leg Length in Total Hip Arthroplasty

The management of leg lengths in total hip arthroplasty continues to challenge orthopaedic surgeons. The aim of this study is to test the reliability of a measuring device used to measure the resected femoral head and how the resulting intra operatively calculated change in leg length compares to th...

Full description

Bibliographic Details
Main Authors: Garth Grobler, MBChB, FRCS(Edin), FC Orth, MMed(UCT), Marc Nortje, MBChB, FC Orth, Brendan Dower, MBChB, FC Orth, Dave Chivers, MBChB, FC Orth
Format: Article
Language:English
Published: Elsevier 2020-09-01
Series:Arthroplasty Today
Subjects:
Hip
Online Access:http://www.sciencedirect.com/science/article/pii/S2352344120300728
id doaj-3963be5d6bac48b0be580ba7329ce38a
record_format Article
spelling doaj-3963be5d6bac48b0be580ba7329ce38a2020-11-25T03:32:31ZengElsevierArthroplasty Today2352-34412020-09-0163330337A Vertical Measurement System to Predict the Change in Leg Length in Total Hip ArthroplastyGarth Grobler, MBChB, FRCS(Edin), FC Orth, MMed(UCT)0Marc Nortje, MBChB, FC Orth1Brendan Dower, MBChB, FC Orth2Dave Chivers, MBChB, FC Orth3Life Orthopaedic Hospital at Vincent Pallotti, Cape Town, South AfricaUniversity of Cape Town Orthopaedic Department, Cape Town, South Africa; Corresponding author. Groote Schuur Hospital, H49 Old Main Building, Observatory 7925, Western Cape, South Africa. Tel.:+27 21 4045108.Life Orthopaedic Hospital at Vincent Pallotti, Cape Town, South AfricaUniversity of Cape Town Orthopaedic Department, Cape Town, South AfricaThe management of leg lengths in total hip arthroplasty continues to challenge orthopaedic surgeons. The aim of this study is to test the reliability of a measuring device used to measure the resected femoral head and how the resulting intra operatively calculated change in leg length compares to the radiographically measured change in leg length. Four orthopaedic surgeons measured 20 femoral heads and the intra class coefficients of the raters were between 0.955 and 0.990 with a mean difference less 1 mm, indicating the reliability of the device. The ‘actual’ radiographic leg length correction of 50 patients and the ‘predicted’ intra operatively calculated correction was analysed with a linear regression model and 47 measurements were within 2 mm and the remaining 3 within 4 mm.http://www.sciencedirect.com/science/article/pii/S2352344120300728HipArthroplastyLeg length
collection DOAJ
language English
format Article
sources DOAJ
author Garth Grobler, MBChB, FRCS(Edin), FC Orth, MMed(UCT)
Marc Nortje, MBChB, FC Orth
Brendan Dower, MBChB, FC Orth
Dave Chivers, MBChB, FC Orth
spellingShingle Garth Grobler, MBChB, FRCS(Edin), FC Orth, MMed(UCT)
Marc Nortje, MBChB, FC Orth
Brendan Dower, MBChB, FC Orth
Dave Chivers, MBChB, FC Orth
A Vertical Measurement System to Predict the Change in Leg Length in Total Hip Arthroplasty
Arthroplasty Today
Hip
Arthroplasty
Leg length
author_facet Garth Grobler, MBChB, FRCS(Edin), FC Orth, MMed(UCT)
Marc Nortje, MBChB, FC Orth
Brendan Dower, MBChB, FC Orth
Dave Chivers, MBChB, FC Orth
author_sort Garth Grobler, MBChB, FRCS(Edin), FC Orth, MMed(UCT)
title A Vertical Measurement System to Predict the Change in Leg Length in Total Hip Arthroplasty
title_short A Vertical Measurement System to Predict the Change in Leg Length in Total Hip Arthroplasty
title_full A Vertical Measurement System to Predict the Change in Leg Length in Total Hip Arthroplasty
title_fullStr A Vertical Measurement System to Predict the Change in Leg Length in Total Hip Arthroplasty
title_full_unstemmed A Vertical Measurement System to Predict the Change in Leg Length in Total Hip Arthroplasty
title_sort vertical measurement system to predict the change in leg length in total hip arthroplasty
publisher Elsevier
series Arthroplasty Today
issn 2352-3441
publishDate 2020-09-01
description The management of leg lengths in total hip arthroplasty continues to challenge orthopaedic surgeons. The aim of this study is to test the reliability of a measuring device used to measure the resected femoral head and how the resulting intra operatively calculated change in leg length compares to the radiographically measured change in leg length. Four orthopaedic surgeons measured 20 femoral heads and the intra class coefficients of the raters were between 0.955 and 0.990 with a mean difference less 1 mm, indicating the reliability of the device. The ‘actual’ radiographic leg length correction of 50 patients and the ‘predicted’ intra operatively calculated correction was analysed with a linear regression model and 47 measurements were within 2 mm and the remaining 3 within 4 mm.
topic Hip
Arthroplasty
Leg length
url http://www.sciencedirect.com/science/article/pii/S2352344120300728
work_keys_str_mv AT garthgroblermbchbfrcsedinfcorthmmeduct averticalmeasurementsystemtopredictthechangeinleglengthintotalhiparthroplasty
AT marcnortjembchbfcorth averticalmeasurementsystemtopredictthechangeinleglengthintotalhiparthroplasty
AT brendandowermbchbfcorth averticalmeasurementsystemtopredictthechangeinleglengthintotalhiparthroplasty
AT davechiversmbchbfcorth averticalmeasurementsystemtopredictthechangeinleglengthintotalhiparthroplasty
AT garthgroblermbchbfrcsedinfcorthmmeduct verticalmeasurementsystemtopredictthechangeinleglengthintotalhiparthroplasty
AT marcnortjembchbfcorth verticalmeasurementsystemtopredictthechangeinleglengthintotalhiparthroplasty
AT brendandowermbchbfcorth verticalmeasurementsystemtopredictthechangeinleglengthintotalhiparthroplasty
AT davechiversmbchbfcorth verticalmeasurementsystemtopredictthechangeinleglengthintotalhiparthroplasty
_version_ 1724567752869412864