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Journal of Orthopaedic Surgery and Research

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Open Access 01-12-2019 | Hip Dislocation | Research article

Total hip arthroplasty with modular stem for Crowe I and II developmental dysplasia of the hip

Authors: Xiangpeng Kong, Yunming Sun, Minzhi Yang, Yonggang Zhou, Jiying Chen, Wei Chai, Yan Wang

Published in: Journal of Orthopaedic Surgery and Research | Issue 1/2019

Abstract

Background

The variation of femoral anteversion is not completely consistent with the grade of developmental dysplasia of the hip (DDH), which poses challenges to hip replacement with the non-modular tapered stem. Currently, whether the modular stem should be used in Crowe I and II DDH is still controversial. The aim of this study is to compare the clinical efficacy of the modular stem and the non-modular tapered stem in Crowe I and II DDH patients.

Methods

We retrospective analyzed the clinical data of 196 patients with unilateral Crowe I and II DDH from January 2015 to January 2017. One hundred patients were operated by an experienced surgeon with the modular stems; the remaining 96 patient was operated by another equivalent surgeon with the non-modular tapered stems. The preoperative basic information, operating time, intraoperative and postoperative complications, postoperative leg length discrepancy (LLD) and offset, Harris hip score (HHS), and forgotten joint score (FJS) in postoperative 2 years were collected and analyzed.

Results

Postoperative LLD (P = 0.010) and FJS (P = 0.001) had significant difference between two groups. Concurrent acceptable LLD and offset were achieved in 87% of patients with the modular stem and in 68% of patients with the non-modular stem (P = 0.001). There was no significant difference in the operating time (P = 0.086), intraoperative complication (P = 0.096), postoperative dislocation rate (P = 0.056), postoperative offset difference (P = 0.108), and Harris score (P = 0.877) between two groups.

Conclusions

Compared with the non-modular tapered stem, the modular stem was more likely to provide accurate reconstruction and forgotten artificial hip for Crowe I and II DDH patients. We recommend the modular stem as routine choice for these patients.

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Title: Total hip arthroplasty with modular stem for Crowe I and II developmental dysplasia of the hip
Authors: Xiangpeng Kong
Yunming Sun
Minzhi Yang
Yonggang Zhou
Jiying Chen
Wei Chai
Yan Wang
Publication date: 01-12-2019
Publisher: BioMed Central
Keywords: Hip Dislocation
Hip Dysplasia
Hip-TEP
Hip-TEP
Published in: Journal of Orthopaedic Surgery and Research / Issue 1/2019
Electronic ISSN: 1749-799X
DOI: https://doi.org/10.1186/s13018-019-1408-2

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Total hip arthroplasty with modular stem for Crowe I and II developmental dysplasia of the hip

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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