Variations in lower limb alignments indicate pelvic tilt after total hip arthroplasty
Abstract 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. Sagi...
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| Format: | Article |
| Language: | English |
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BMC
2022-12-01
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| Series: | BMC Musculoskeletal Disorders |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s12891-022-06032-y |
| _version_ | 1797977634115682304 |
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| author | Kangming Chen Jinyan Wu Gangyong Huang Changquan Liu Chao Shen Junfeng Zhu Yang Li Tao Li Fei Xiao Jianping Peng Xiuguo Han Xinhai Zhang Jun Xia Xiaodong Chen |
| author_facet | Kangming Chen Jinyan Wu Gangyong Huang Changquan Liu Chao Shen Junfeng Zhu Yang Li Tao Li Fei Xiao Jianping Peng Xiuguo Han Xinhai Zhang Jun Xia Xiaodong Chen |
| author_sort | Kangming Chen |
| collection | DOAJ |
| description | Abstract 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 (R2 = 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. |
| first_indexed | 2024-04-11T05:09:48Z |
| format | Article |
| id | doaj.art-8f6c332f9be746c59e27b6482320bb37 |
| institution | Directory Open Access Journal |
| issn | 1471-2474 |
| language | English |
| last_indexed | 2024-04-11T05:09:48Z |
| publishDate | 2022-12-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Musculoskeletal Disorders |
| spelling | doaj.art-8f6c332f9be746c59e27b6482320bb372022-12-25T12:02:23ZengBMCBMC Musculoskeletal Disorders1471-24742022-12-012311810.1186/s12891-022-06032-yVariations in lower limb alignments indicate pelvic tilt after total hip arthroplastyKangming Chen0Jinyan Wu1Gangyong Huang2Changquan Liu3Chao Shen4Junfeng Zhu5Yang Li6Tao Li7Fei Xiao8Jianping Peng9Xiuguo Han10Xinhai Zhang11Jun Xia12Xiaodong Chen13Department of Orthopaedics, Huashan Hospital, Fudan UniversityDepartment of Orthopaedics, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of medicineDepartment of Orthopaedics, Huashan Hospital, Fudan UniversityDepartment of Orthopaedics, Huashan Hospital, Fudan UniversityDepartment of Orthopaedics, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of medicineDepartment of Orthopaedics, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of medicineDepartment of Orthopaedics, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of medicineDepartment of Orthopaedics, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of medicineDepartment of Orthopaedics, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of medicineDepartment of Orthopaedics, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of medicineDepartment of Orthopaedics, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of medicineDepartment of Orthopaedics, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of medicineDepartment of Orthopaedics, Huashan Hospital, Fudan UniversityDepartment of Orthopaedics, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of medicineAbstract 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 (R2 = 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.https://doi.org/10.1186/s12891-022-06032-ySpinal sagittal balanceSpinopelvic mobilityTotal hip arthroplastyInstabilityLower limb alignment |
| spellingShingle | Kangming Chen Jinyan Wu Gangyong Huang Changquan Liu Chao Shen Junfeng Zhu Yang Li Tao Li Fei Xiao Jianping Peng Xiuguo Han Xinhai Zhang Jun Xia Xiaodong Chen Variations in lower limb alignments indicate pelvic tilt after total hip arthroplasty BMC Musculoskeletal Disorders Spinal sagittal balance Spinopelvic mobility Total hip arthroplasty Instability Lower limb alignment |
| 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 | Spinal sagittal balance Spinopelvic mobility Total hip arthroplasty Instability Lower limb alignment |
| url | https://doi.org/10.1186/s12891-022-06032-y |
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