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Hip reduction surgery versus scoliosis correction in non-ambulant neuromuscular patients: which surgery is the first step?

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Abstract

Purpose

Children and young adults with neuromuscular disorders have a high incidence of both spine and hip deformities. The aim of this study was to evaluate the outcome of either primary scoliosis or hip surgery in children and young adults with neuromuscular disorders.

Methods

A retrospective study was conducted on all children and young adults with neuromuscular-related synchronous hip subluxation/dislocation and scoliosis undergoing hip or scoliosis surgery in our institution between 2012 and 2021 with a minimum follow-up of 24 months. Demographic and operative data were collected; radiological parameters were measured preoperatively and postoperatively at final follow-up.

Results

Forty neuromuscular patients with synchronous hip displacement and scoliosis were included. Twenty patients with an average age of10.2 years had hip correction surgery performed primarily, with a mean follow-up of 54.9 (24–96) months. The other 20 patients with an average age of 12.4 years had scoliosis correction first, with a mean follow-up of 40 (24–60) months. In the “Hip first” group, pelvic obliquity, hip MP and Cobb angle were 16.8°, 71%, and 49°, respectively. At final follow-up, the mean pelvic obliquity and Cobb angles significantly progressed to 27.2° (p = 0.003) and 82.2° (p = 0.001), respectively. Eighteen patients (90%) required scoliosis correction after the hip surgery. In the “Scoliosis first” group, the mean pelvic obliquity, hip MP and Cobb angle were 21.2°, 49% and 65.5°, respectively. At final follow-up, both pelvic obliquity and Cobb angle significantly improved to 8.44° (p = 0.002) and 23.4° (p = 0.001), respectively. In 11/20 (55%) patients, the hip MP had significantly increased following the spinal surgery to 62% (p = 0.001), but only 5/20 (25%) patients underwent hip surgery after scoliosis correction.

Conclusion

In neuromuscular patients presenting with synchronous hip displacement and scoliosis deformity, corrective scoliosis surgery is associated with a significant correction of pelvic obliquity and lower rates of secondary hip surgery. On the other hand, primary hip surgery does not reduce the risk of pelvic obliquity and scoliosis deformity progression.

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Funding

We are the authors of “Hip reduction surgery versus scoliosis correction in non-ambulant neuromuscular patients. Which surgery is the first step?”. From the moment this study was conceived until the time it was completed, we have had no financial conflicts of interest in writing this manuscript nor had any assistance from any other parties that could affect or produce a financial bias.

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Authors

Contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by MAKEM, MSP, AG and EN. The first draft of the manuscript was written by MS, NAQ and AS, MEA-W, AHKA commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Mostafa Ali Khaleefa ELMeshneb.

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Ethical approval

Ethical approval was waived by the local Ethics Committee of our university in view of the retrospective nature of the study and all the procedures being performed were part of the routine care.

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ELMeshneb, M.A.K., Gessara, A., Najjar, E. et al. Hip reduction surgery versus scoliosis correction in non-ambulant neuromuscular patients: which surgery is the first step?. Spine Deform 12, 747–754 (2024). https://doi.org/10.1007/s43390-023-00804-9

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