Multi-rod posterior correction only with halo-femoral traction for the management of adult neuromuscular scoliosis (> 100°) with severe pelvic obliquity: a minimum 5-year follow-up

Background: Many patients with neuromuscular scoliosis (NMS) experience a variety of difficult medical problems that aggravate the development effects of progressive scoliosis and pelvic obliquity (PO). The objective of the current study was to assess the safety and effectiveness of multi-rod posterior correction only (MRPCO) with halo-femoral traction (HFT) for the management of adult NMS (> 100 degrees) with severe PO.Methods: From 2012 to 2017, 13 adult patients who suffered from NMS (> 100 degrees) with severe PO underwent MRPCO with HFT. The radiography parameters in a sitting position, such as the coronal Cobb angle of the main curve, the PO and the trunk shift (TS), were measured at the preoperative, postoperative and final follow-up stages. The preoperative and final follow-up assessment of the Visual Analogue Scale (VAS) and Oswestry Disability Index (ODI) was taken.Results: The average follow-up span was 68.15 +/- 6.78 months. There was decreased postoperative coronal Cobb angle with an average mean of 125.24 degrees +/- 11.78 degrees to 47.55 degrees +/- 12.10 degrees, with a correction rate of 62.43%; the PO was reduced to 6.25 degrees +/- 1.63 degrees from 36.93 degrees +/- 4.25 degrees with a correction rate of 83.07%; the TS was reduced to 2.41 cm +/- 1.40 cm from 9.19 cm +/- 3.07 cm. There was significant improvement in all parameters compared to the preoperative data. The VAS score reduced from 4.77 +/- 0.93 to 0.69 +/- 0.75, and the ODI score reduced from 65.38 +/- 16.80 to 28.62 +/- 12.29 at the final follow-up.Conclusions: Treatment of adult NMS (> 100 degrees) with severe PO could be safe and effective with MRPCO with HFT. In order to obtain the optimum sitting balance, this could reduce the prevalence of complications and rectify the curvature and the correction of PO.