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Published in: International Orthopaedics 1/2023

14-09-2022 | Osteoarthrosis | Original Paper

Hip function in patients undergoing conservative treatment for osteonecrosis of the femoral head

Authors: Yusuke Osawa, Yasuhiko Takegami, Daisaku Kato, Masanori Okamoto, Hiroki Iida, Shiro Imagama

Published in: International Orthopaedics | Issue 1/2023

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Abstract

Purpose

Once collapsed, osteonecrosis of the femoral head (ONFH) generally obtains collapse cessation naturally and surgical intervention can be avoided in the long term. This study aimed to investigate the process of hip function and secondary osteoarthritis changes in ONFH patients undergoing conservative treatment.

Methods

We included 54 patients with symptomatic ONFH at the first visit with a minimum follow-up of three years with conservative treatment. Patients were divided into two groups based on collapse cessation < 3 mm (stable group) or progression to > 3 mm (progression group). Additionally, we investigated age, sex, body mass index (BMI), etiology, contralateral side hip joint, the Japanese Investigation Committee (JIC) type classification, Harris hip score (HHS), Japanese Orthopaedic Association Hip-Disease Evaluation Questionnaire (JHEQ), and survival rate with secondary osteoarthritis as the endpoint.

Results

The stable and progression groups had 31 and 23 patients, respectively. No significant differences in age, sex, BMI, and aetiology were observed between the two groups, except for the contralateral side hip joint and JIC type classification. The HHS and JHEQ were significantly improved at the final follow-up than at the first visit in the stable group. However, there were no significant differences in HHS and JHEQ at the final follow-up than at the first visit in the progression group. The five year survival rates with secondary osteoarthritis as the endpoint were significantly higher in the stable group (100%) than in the progression group (32.5%).

Conclusion

Hip joint function improved by continuing conservative treatment in ONFH patients with collapse cessation < 3 mm.
Literature
13.
go back to reference Matsumoto T, Kaneuji A, Hiejima Y et al (2012) Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire (JHEQ): a patient-based evaluation tool for hip-joint disease The Subcommittee on Hip Disease Evaluation of the Clinical Outcome Committee of the Japanese Orthopaedic Association. J Orthop Sci 17(1):25–38CrossRef Matsumoto T, Kaneuji A, Hiejima Y et al (2012) Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire (JHEQ): a patient-based evaluation tool for hip-joint disease The Subcommittee on Hip Disease Evaluation of the Clinical Outcome Committee of the Japanese Orthopaedic Association. J Orthop Sci 17(1):25–38CrossRef
Metadata
Title
Hip function in patients undergoing conservative treatment for osteonecrosis of the femoral head
Authors
Yusuke Osawa
Yasuhiko Takegami
Daisaku Kato
Masanori Okamoto
Hiroki Iida
Shiro Imagama
Publication date
14-09-2022
Publisher
Springer Berlin Heidelberg
Published in
International Orthopaedics / Issue 1/2023
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-022-05569-w

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