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Leg length measures appear inaccurate in the early phase following total hip arthroplasty

The aims of this study were to (1) assess reliability of leg length discrepancy (LLD) measurements at different anatomical landmarks, (2) longitudinally investigate LLD in patients within the first year following total hip arthroplasty (THA) and to (3) correlate changes in LLD with functional outcom...

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Autores principales: Smolle, Maria Anna, Fischerauer, Stefan Franz, Maier, Michael, Reinbacher, Patrick, Friesenbichler, Jörg, Ruckenstuhl, Paul, Grandesso, Maria, Leithner, Andreas, Maurer-Ertl, Werner
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8636479/
https://www.ncbi.nlm.nih.gov/pubmed/34853409
http://dx.doi.org/10.1038/s41598-021-02684-3
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author Smolle, Maria Anna
Fischerauer, Stefan Franz
Maier, Michael
Reinbacher, Patrick
Friesenbichler, Jörg
Ruckenstuhl, Paul
Grandesso, Maria
Leithner, Andreas
Maurer-Ertl, Werner
author_facet Smolle, Maria Anna
Fischerauer, Stefan Franz
Maier, Michael
Reinbacher, Patrick
Friesenbichler, Jörg
Ruckenstuhl, Paul
Grandesso, Maria
Leithner, Andreas
Maurer-Ertl, Werner
author_sort Smolle, Maria Anna
collection PubMed
description The aims of this study were to (1) assess reliability of leg length discrepancy (LLD) measurements at different anatomical landmarks, (2) longitudinally investigate LLD in patients within the first year following total hip arthroplasty (THA) and to (3) correlate changes in LLD with functional outcome. Ninety-nine patients with short stem THA (53.3% males, mean age: 61.0 ± 8.1 years) were prospectively included. Upright pelvic anteroposterior (a.p.) radiographs taken at 6 timepoints (preoperatively, discharge, 6, 12, 24, 52 weeks postoperatively) were used to assess LLD at 5 anatomical landmarks (iliac crest, upper sacroiliac joint, lower sacroiliac joint, tear drop figure, greater trochanter). WOMAC and Harris Hip Score (HHS) were obtained preoperatively and at 6 and 52 weeks. LLD measures significantly increased in the initial phase following THA, from discharge to 6 weeks postoperatively and remained constant thereafter. Documentation of LLDs is dependent on measurement site: LLDs varied significantly between trochanter and iliac crest to tear drop figure (p < 0.001). Functional assessments did not correlate with the occurrence of LLDs [WOMAC (p = 0.252); HHS (p = 0.798)]. Radiographic assessment of LLD following THA may not be performed early postoperatively, as measurements appear to inaccurately reflect actual LLDs at this time, potentially due incomplete leg extension and/or inhibited weight-bearing.
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spelling pubmed-86364792021-12-03 Leg length measures appear inaccurate in the early phase following total hip arthroplasty Smolle, Maria Anna Fischerauer, Stefan Franz Maier, Michael Reinbacher, Patrick Friesenbichler, Jörg Ruckenstuhl, Paul Grandesso, Maria Leithner, Andreas Maurer-Ertl, Werner Sci Rep Article The aims of this study were to (1) assess reliability of leg length discrepancy (LLD) measurements at different anatomical landmarks, (2) longitudinally investigate LLD in patients within the first year following total hip arthroplasty (THA) and to (3) correlate changes in LLD with functional outcome. Ninety-nine patients with short stem THA (53.3% males, mean age: 61.0 ± 8.1 years) were prospectively included. Upright pelvic anteroposterior (a.p.) radiographs taken at 6 timepoints (preoperatively, discharge, 6, 12, 24, 52 weeks postoperatively) were used to assess LLD at 5 anatomical landmarks (iliac crest, upper sacroiliac joint, lower sacroiliac joint, tear drop figure, greater trochanter). WOMAC and Harris Hip Score (HHS) were obtained preoperatively and at 6 and 52 weeks. LLD measures significantly increased in the initial phase following THA, from discharge to 6 weeks postoperatively and remained constant thereafter. Documentation of LLDs is dependent on measurement site: LLDs varied significantly between trochanter and iliac crest to tear drop figure (p < 0.001). Functional assessments did not correlate with the occurrence of LLDs [WOMAC (p = 0.252); HHS (p = 0.798)]. Radiographic assessment of LLD following THA may not be performed early postoperatively, as measurements appear to inaccurately reflect actual LLDs at this time, potentially due incomplete leg extension and/or inhibited weight-bearing. Nature Publishing Group UK 2021-12-01 /pmc/articles/PMC8636479/ /pubmed/34853409 http://dx.doi.org/10.1038/s41598-021-02684-3 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Smolle, Maria Anna
Fischerauer, Stefan Franz
Maier, Michael
Reinbacher, Patrick
Friesenbichler, Jörg
Ruckenstuhl, Paul
Grandesso, Maria
Leithner, Andreas
Maurer-Ertl, Werner
Leg length measures appear inaccurate in the early phase following total hip arthroplasty
title Leg length measures appear inaccurate in the early phase following total hip arthroplasty
title_full Leg length measures appear inaccurate in the early phase following total hip arthroplasty
title_fullStr Leg length measures appear inaccurate in the early phase following total hip arthroplasty
title_full_unstemmed Leg length measures appear inaccurate in the early phase following total hip arthroplasty
title_short Leg length measures appear inaccurate in the early phase following total hip arthroplasty
title_sort leg length measures appear inaccurate in the early phase following total hip arthroplasty
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8636479/
https://www.ncbi.nlm.nih.gov/pubmed/34853409
http://dx.doi.org/10.1038/s41598-021-02684-3
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