Increased Loading Rates During Gait Correlate With Morphology of Unaffected Hip in Juveniles With Treated Developmental Hip Dysplasia
Long-term follow-up studies on children with surgically treated developmental dysplasia of the hip (DDH) have shown that not only the affected side progresses to premature osteoarthritis, but the unaffected side may also suffer from insidious hip dysplasia or osteonecrosis. The current gait analysis...
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Frontiers Media S.A.
2021-07-01
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| Series: | Frontiers in Bioengineering and Biotechnology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fbioe.2021.704266/full |
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| author | Wei-Chun Lee Wei-Chun Lee Tsan-Yang Chen Li-Wei Hung Li-Wei Hung Ting-Ming Wang Chia-Hsieh Chang Tung-Wu Lu Tung-Wu Lu |
| author_facet | Wei-Chun Lee Wei-Chun Lee Tsan-Yang Chen Li-Wei Hung Li-Wei Hung Ting-Ming Wang Chia-Hsieh Chang Tung-Wu Lu Tung-Wu Lu |
| author_sort | Wei-Chun Lee |
| collection | DOAJ |
| description | Long-term follow-up studies on children with surgically treated developmental dysplasia of the hip (DDH) have shown that not only the affected side progresses to premature osteoarthritis, but the unaffected side may also suffer from insidious hip dysplasia or osteonecrosis. The current gait analysis study identified the loading and unloading rates of the ground reaction forces (GRF) and lower limb joint axial forces during gait, and their correlations with the hip morphology in twenty juvenile patients with surgically treated unilateral DDH during toddlerhood. In a gait laboratory, each subject walked at preferred speed on a 10-m walkway while the kinematics and the GRF were measured. Loading and unloading rates of the vertical GRF and the joint axial forces were obtained as the maximum instantaneous slope of these force curves. Radiographic measurements of the hips were taken, and the correlations between the morphological parameters and the loading and unloading rates were obtained. The patients showed greater-than-normal peak loading rates of the joint axial forces, and the loading rates on both the affected and unaffected sides were strongly correlated to the acetabular index on the unaffected side, which was also significantly correlated with the peak unloading rates on the affected side. These results suggest that apart from regular follow-up of the affected hip, routine assessment of the morphological changes and/or increased loading rates on the unaffected hip is also important for early identification of any signs of insidious hip dysplasia and risk of premature degeneration of the cartilage. |
| first_indexed | 2024-12-19T10:04:26Z |
| format | Article |
| id | doaj.art-67eba92f28384de38831bd9517496981 |
| institution | Directory Open Access Journal |
| issn | 2296-4185 |
| language | English |
| last_indexed | 2024-12-19T10:04:26Z |
| publishDate | 2021-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Bioengineering and Biotechnology |
| spelling | doaj.art-67eba92f28384de38831bd95174969812022-12-21T20:26:34ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852021-07-01910.3389/fbioe.2021.704266704266Increased Loading Rates During Gait Correlate With Morphology of Unaffected Hip in Juveniles With Treated Developmental Hip DysplasiaWei-Chun Lee0Wei-Chun Lee1Tsan-Yang Chen2Li-Wei Hung3Li-Wei Hung4Ting-Ming Wang5Chia-Hsieh Chang6Tung-Wu Lu7Tung-Wu Lu8Department of Biomedical Engineering, National Taiwan University, Taipei, TaiwanDepartment of Pediatric Orthopedics, Chang Gung Memorial Hospital, Taoyuan, TaiwanDepartment of Biomedical Engineering, National Taiwan University, Taipei, TaiwanDepartment of Biomedical Engineering, National Taiwan University, Taipei, TaiwanDepartment of Orthopedics, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, TaiwanDepartment of Orthopedic Surgery, School of Medicine, National Taiwan University, Taipei, TaiwanDepartment of Pediatric Orthopedics, Chang Gung Memorial Hospital, Taoyuan, TaiwanDepartment of Biomedical Engineering, National Taiwan University, Taipei, TaiwanDepartment of Orthopedic Surgery, School of Medicine, National Taiwan University, Taipei, TaiwanLong-term follow-up studies on children with surgically treated developmental dysplasia of the hip (DDH) have shown that not only the affected side progresses to premature osteoarthritis, but the unaffected side may also suffer from insidious hip dysplasia or osteonecrosis. The current gait analysis study identified the loading and unloading rates of the ground reaction forces (GRF) and lower limb joint axial forces during gait, and their correlations with the hip morphology in twenty juvenile patients with surgically treated unilateral DDH during toddlerhood. In a gait laboratory, each subject walked at preferred speed on a 10-m walkway while the kinematics and the GRF were measured. Loading and unloading rates of the vertical GRF and the joint axial forces were obtained as the maximum instantaneous slope of these force curves. Radiographic measurements of the hips were taken, and the correlations between the morphological parameters and the loading and unloading rates were obtained. The patients showed greater-than-normal peak loading rates of the joint axial forces, and the loading rates on both the affected and unaffected sides were strongly correlated to the acetabular index on the unaffected side, which was also significantly correlated with the peak unloading rates on the affected side. These results suggest that apart from regular follow-up of the affected hip, routine assessment of the morphological changes and/or increased loading rates on the unaffected hip is also important for early identification of any signs of insidious hip dysplasia and risk of premature degeneration of the cartilage.https://www.frontiersin.org/articles/10.3389/fbioe.2021.704266/fullgaithip loadingpremature osteoarthritiship dysplasiahip biomechanics |
| spellingShingle | Wei-Chun Lee Wei-Chun Lee Tsan-Yang Chen Li-Wei Hung Li-Wei Hung Ting-Ming Wang Chia-Hsieh Chang Tung-Wu Lu Tung-Wu Lu Increased Loading Rates During Gait Correlate With Morphology of Unaffected Hip in Juveniles With Treated Developmental Hip Dysplasia Frontiers in Bioengineering and Biotechnology gait hip loading premature osteoarthritis hip dysplasia hip biomechanics |
| title | Increased Loading Rates During Gait Correlate With Morphology of Unaffected Hip in Juveniles With Treated Developmental Hip Dysplasia |
| title_full | Increased Loading Rates During Gait Correlate With Morphology of Unaffected Hip in Juveniles With Treated Developmental Hip Dysplasia |
| title_fullStr | Increased Loading Rates During Gait Correlate With Morphology of Unaffected Hip in Juveniles With Treated Developmental Hip Dysplasia |
| title_full_unstemmed | Increased Loading Rates During Gait Correlate With Morphology of Unaffected Hip in Juveniles With Treated Developmental Hip Dysplasia |
| title_short | Increased Loading Rates During Gait Correlate With Morphology of Unaffected Hip in Juveniles With Treated Developmental Hip Dysplasia |
| title_sort | increased loading rates during gait correlate with morphology of unaffected hip in juveniles with treated developmental hip dysplasia |
| topic | gait hip loading premature osteoarthritis hip dysplasia hip biomechanics |
| url | https://www.frontiersin.org/articles/10.3389/fbioe.2021.704266/full |
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