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Variations in lower limb alignments indicate pelvic tilt after total hip arthroplasty

OBJECTIVE: We sought to correlate various spinopelvic and lower limb alignments, and to examine the current spinopelvic theories on a Chinese cohort. METHODS: We retrospectively reviewed 166 patients undergoing THA. Among them, 138 patients with unilateral THA met the inclusion criteria. Sagittal al...

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Autores principales: Chen, Kangming, Wu, Jinyan, Huang, Gangyong, Liu, Changquan, Shen, Chao, Zhu, Junfeng, Li, Yang, Li, Tao, Xiao, Fei, Peng, Jianping, Han, Xiuguo, Zhang, Xinhai, Xia, Jun, Chen, Xiaodong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9773480/
https://www.ncbi.nlm.nih.gov/pubmed/36544147
http://dx.doi.org/10.1186/s12891-022-06032-y
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author Chen, Kangming
Wu, Jinyan
Huang, Gangyong
Liu, Changquan
Shen, Chao
Zhu, Junfeng
Li, Yang
Li, Tao
Xiao, Fei
Peng, Jianping
Han, Xiuguo
Zhang, Xinhai
Xia, Jun
Chen, Xiaodong
author_facet Chen, Kangming
Wu, Jinyan
Huang, Gangyong
Liu, Changquan
Shen, Chao
Zhu, Junfeng
Li, Yang
Li, Tao
Xiao, Fei
Peng, Jianping
Han, Xiuguo
Zhang, Xinhai
Xia, Jun
Chen, Xiaodong
author_sort Chen, Kangming
collection PubMed
description OBJECTIVE: We sought to correlate various spinopelvic and lower limb alignments, and to examine the current spinopelvic theories on a Chinese cohort. METHODS: We retrospectively reviewed 166 patients undergoing THA. Among them, 138 patients with unilateral THA met the inclusion criteria. Sagittal alignments and cup orientations were measured on standing and sitting lateral EOS images. Patients were categorized into two groups with a scoring system for lumbar spine degeneration. Patients’ demographics including age, sex, lumbar spine degeneration and radiographic measurements were studied. RESULTS: PT, SS, LL and TK differed significantly between standing and sitting within each group except for TK in degenerative group (32.8 ± 13.9 vs. 32.9 ± 14.2, p = 0.905). Compared with degenerative spine group, non-degenerative spine patients have great pelvic mobility (ΔPT, -24.4 ± 12.5° vs. -17.6 ± 10.7, p = 0.0008), greater lumbar mobility (ΔLL, -34.8 ± 15.2 vs. -21.7 ± 12.2, p = < 0.0001) and compensatory cup orientation changes (ΔRA, -15.5 ± 11.1 vs. -12.0 ± 8.4, p = 0.00920; ΔRI, -10.8 ± 11.5 vs. -5.6 ± 7.5, p = 0.0055). Standing PT and ankle dorsiflexion angle correlated positively (R(2) = 0.236, p = 0.005). CONCLUSION: THA patients in this cohort showed a spinopelvic motion paradigm similar to that from previous studies on Caucasians. Ankle dorsiflexion indicate greater posterior pelvic tilt on standing. Surgeons should beware of risks of instability in patients with lower limb compensations. ADVANCES IN KNOWLEDGE: This study provides new insights into the clinical relevance of lower limb alignments to spinopelvic motion after THA in a relatively young Chinese population. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12891-022-06032-y.
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spelling pubmed-97734802022-12-23 Variations in lower limb alignments indicate pelvic tilt after total hip arthroplasty Chen, Kangming Wu, Jinyan Huang, Gangyong Liu, Changquan Shen, Chao Zhu, Junfeng Li, Yang Li, Tao Xiao, Fei Peng, Jianping Han, Xiuguo Zhang, Xinhai Xia, Jun Chen, Xiaodong BMC Musculoskelet Disord Research OBJECTIVE: We sought to correlate various spinopelvic and lower limb alignments, and to examine the current spinopelvic theories on a Chinese cohort. METHODS: We retrospectively reviewed 166 patients undergoing THA. Among them, 138 patients with unilateral THA met the inclusion criteria. Sagittal alignments and cup orientations were measured on standing and sitting lateral EOS images. Patients were categorized into two groups with a scoring system for lumbar spine degeneration. Patients’ demographics including age, sex, lumbar spine degeneration and radiographic measurements were studied. RESULTS: PT, SS, LL and TK differed significantly between standing and sitting within each group except for TK in degenerative group (32.8 ± 13.9 vs. 32.9 ± 14.2, p = 0.905). Compared with degenerative spine group, non-degenerative spine patients have great pelvic mobility (ΔPT, -24.4 ± 12.5° vs. -17.6 ± 10.7, p = 0.0008), greater lumbar mobility (ΔLL, -34.8 ± 15.2 vs. -21.7 ± 12.2, p = < 0.0001) and compensatory cup orientation changes (ΔRA, -15.5 ± 11.1 vs. -12.0 ± 8.4, p = 0.00920; ΔRI, -10.8 ± 11.5 vs. -5.6 ± 7.5, p = 0.0055). Standing PT and ankle dorsiflexion angle correlated positively (R(2) = 0.236, p = 0.005). CONCLUSION: THA patients in this cohort showed a spinopelvic motion paradigm similar to that from previous studies on Caucasians. Ankle dorsiflexion indicate greater posterior pelvic tilt on standing. Surgeons should beware of risks of instability in patients with lower limb compensations. ADVANCES IN KNOWLEDGE: This study provides new insights into the clinical relevance of lower limb alignments to spinopelvic motion after THA in a relatively young Chinese population. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12891-022-06032-y. BioMed Central 2022-12-22 /pmc/articles/PMC9773480/ /pubmed/36544147 http://dx.doi.org/10.1186/s12891-022-06032-y Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis 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/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research
Chen, Kangming
Wu, Jinyan
Huang, Gangyong
Liu, Changquan
Shen, Chao
Zhu, Junfeng
Li, Yang
Li, Tao
Xiao, Fei
Peng, Jianping
Han, Xiuguo
Zhang, Xinhai
Xia, Jun
Chen, Xiaodong
Variations in lower limb alignments indicate pelvic tilt after total hip arthroplasty
title Variations in lower limb alignments indicate pelvic tilt after total hip arthroplasty
title_full Variations in lower limb alignments indicate pelvic tilt after total hip arthroplasty
title_fullStr Variations in lower limb alignments indicate pelvic tilt after total hip arthroplasty
title_full_unstemmed Variations in lower limb alignments indicate pelvic tilt after total hip arthroplasty
title_short Variations in lower limb alignments indicate pelvic tilt after total hip arthroplasty
title_sort variations in lower limb alignments indicate pelvic tilt after total hip arthroplasty
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9773480/
https://www.ncbi.nlm.nih.gov/pubmed/36544147
http://dx.doi.org/10.1186/s12891-022-06032-y
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