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Pelvic mobility before and after total hip arthroplasty.
Int Orthop. 2020 Jul 04 [Online ahead of print]IO

Abstract

BACKGROUND

Pre-operative evaluation of pelvic motion using the sacral slope (SS) has been proposed for risk assessment of dislocation after total hip arthroplasty (THA). The purposes of this study were to elucidate the statistical characteristics of pre-operative and post-operative pelvic mobility and investigate the relationship between pre-operative spinopelvic factors and post-operative pelvic mobility.

METHODS

Eighty-six patients with osteoarthritis were assessed. The parameters evaluated were lumbar lordosis angle and the SS in the standing and sitting preo-peratively and post-operatively. The pelvic mobility was defined as the difference in the SS between standing and sitting. The presence of osteoarthritis in the contralateral hip, spondylolisthesis, vertebral compression fracture and lumbar scoliosis was investigated.

RESULTS

The median (interquartile range) pre-operative and post-operative pelvic mobility was 19.0 (13.75-27.0) and 16.0 (10.0-25.25), respectively, with significant difference. The pre-operative SS while standing and pre-operative pelvic mobility were associated with post-operative pelvic mobility (r = 0.409, P < 0.05 and r = 0.533, P < 0.05). The multivariate linear regression analysis showed that the following factors contributed to post-operative pelvic mobility: incidence of osteoarthritis in the contralateral hip, lumbar scoliosis, pre-operative SS while standing and pre-operative SS while sitting.

CONCLUSION

The pre-operative and post-operative pelvic mobility is not equal and ranges widely among patients. In addition to assessment of pre-operative pelvic mobility, other pre-operative spinopelvic factors may also influence post-operative pelvic mobility, such as the SS while standing and sitting, the condition of the contralateral hip and the presence of scoliosis. Risk assessment for dislocation using these pre-operative factors may be useful before THA.

Authors+Show Affiliations

Department of Orthopaedic Surgery, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan. yhomma@juntendo.ac.jp. Medical Technology Innovation Center, Juntendo University, Tokyo, Japan. yhomma@juntendo.ac.jp.Department of Orthopaedic Surgery, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.Medical Technology Innovation Center, Juntendo University, Tokyo, Japan.Department of Orthopaedic Surgery, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.Department of Orthopaedic Surgery, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.Department of Orthopaedic Surgery, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.Department of Orthopaedic Surgery, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.Department of Orthopaedic Surgery, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32623495

Citation

Homma, Yasuhiro, et al. "Pelvic Mobility Before and After Total Hip Arthroplasty." International Orthopaedics, 2020.
Homma Y, Ishii S, Yanagisawa N, et al. Pelvic mobility before and after total hip arthroplasty. Int Orthop. 2020.
Homma, Y., Ishii, S., Yanagisawa, N., Ochi, H., Baba, T., Nojiri, H., Okuda, T., & Kaneko, K. (2020). Pelvic mobility before and after total hip arthroplasty. International Orthopaedics. https://doi.org/10.1007/s00264-020-04688-6
Homma Y, et al. Pelvic Mobility Before and After Total Hip Arthroplasty. Int Orthop. 2020 Jul 4; PubMed PMID: 32623495.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Pelvic mobility before and after total hip arthroplasty. AU - Homma,Yasuhiro, AU - Ishii,Seiya, AU - Yanagisawa,Naotake, AU - Ochi,Hironori, AU - Baba,Tomonori, AU - Nojiri,Hidetoshi, AU - Okuda,Takatoshi, AU - Kaneko,Kazuo, Y1 - 2020/07/04/ PY - 2020/04/30/received PY - 2020/06/26/accepted PY - 2020/7/6/entrez PY - 2020/7/6/pubmed PY - 2020/7/6/medline KW - Dislocation KW - Pelvic mobility KW - Sacral slope KW - Sagittal balance KW - Total hip arthroplasty JF - International orthopaedics JO - Int Orthop N2 - BACKGROUND: Pre-operative evaluation of pelvic motion using the sacral slope (SS) has been proposed for risk assessment of dislocation after total hip arthroplasty (THA). The purposes of this study were to elucidate the statistical characteristics of pre-operative and post-operative pelvic mobility and investigate the relationship between pre-operative spinopelvic factors and post-operative pelvic mobility. METHODS: Eighty-six patients with osteoarthritis were assessed. The parameters evaluated were lumbar lordosis angle and the SS in the standing and sitting preo-peratively and post-operatively. The pelvic mobility was defined as the difference in the SS between standing and sitting. The presence of osteoarthritis in the contralateral hip, spondylolisthesis, vertebral compression fracture and lumbar scoliosis was investigated. RESULTS: The median (interquartile range) pre-operative and post-operative pelvic mobility was 19.0 (13.75-27.0) and 16.0 (10.0-25.25), respectively, with significant difference. The pre-operative SS while standing and pre-operative pelvic mobility were associated with post-operative pelvic mobility (r = 0.409, P < 0.05 and r = 0.533, P < 0.05). The multivariate linear regression analysis showed that the following factors contributed to post-operative pelvic mobility: incidence of osteoarthritis in the contralateral hip, lumbar scoliosis, pre-operative SS while standing and pre-operative SS while sitting. CONCLUSION: The pre-operative and post-operative pelvic mobility is not equal and ranges widely among patients. In addition to assessment of pre-operative pelvic mobility, other pre-operative spinopelvic factors may also influence post-operative pelvic mobility, such as the SS while standing and sitting, the condition of the contralateral hip and the presence of scoliosis. Risk assessment for dislocation using these pre-operative factors may be useful before THA. SN - 1432-5195 UR - https://www.unboundmedicine.com/medline/citation/32623495/Pelvic_mobility_before_and_after_total_hip_arthroplasty L2 - https://dx.doi.org/10.1007/s00264-020-04688-6 DB - PRIME DP - Unbound Medicine ER -
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