Frontal correction assessment in severe adolescent idiopathic scoliosis surgery using halo gravity traction before to posterior vertebral arthrodesis: a multicenter retrospective observational study

Langlais, Tristan; Josse, Antoine; Violas, Philippe; ,; SOFOP,; Accadbled, Franck; André, Emilie; Fron, Damien; Hamel, Antoine; Happiette, Adèle; Haumont, Thierry; Ilharreborde, Brice; Journeau, Pierre; Lefèvre, Yan; Lucas, Gregory; Morin, Christian; Odent, Thierry; Pesenti, Sébastien; Sales de Gauzy, Jérôme; Ursu, Catalin; Vialle, Raphaël

doi:10.1007/s00586-023-08062-z

Cited by 1 publication

(2 citation statements)

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“…Based on the existing literature, preoperative HGT may offer distinct advantages in managing severe spinal deformities, enabling corrections of 35% in the frontal Cobb angle and 35% in the sagittal Cobb angle in certain cases. Additionally, it aids in enhancing lung function by 9% [10,15,32,34,35], an outcome that aligns with those observed in our study's Group 1 patients. A notable benefit of HGT therapy is its cost-effectiveness, requiring fewer financial investments compared with implant utilization or the application of magnetically controlled growing rods for internal temporary traction, as discussed in various studies [11][12][13][14]20].…”

Section: Discussionsupporting

confidence: 90%

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Radiological and Pulmonary Results of Surgical Treatment of Severe Idiopathic Scoliosis Using Preoperative Halo Gravity Traction Compared with Less Invasive Temporary Internal Distraction in Staged Surgery in Adolescents

Grabala,

Galgano,

Grabala

et al. 2024

JCM

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Background: Severe and rigid scoliosis represents a type of spinal deformity characterized by a Cobb angle exceeding 90° and a flexibility of less than 30%. Halo spinal traction remains the established standard for managing severe scoliosis, although alternative approaches such as temporary internal distraction rods and staged surgical correction exist. The primary objective of this investigation was to compare two cohorts of patients treated using these distinct methods to ascertain any divergences in terms of surgical and radiological outcomes, pulmonary function (PF), and quality of life (QoL). Methods: This study encompassed a total of 62 pediatric patients meeting the specified criteria, which included severe idiopathic scoliosis (major Cobb curve >90) and flexibility <30%. Group 1 (G1) underwent surgical intervention involving preoperative Halo gravity traction (HGT) succeeded by posterior spinal fusion (PSF). On the other hand, Group 2 (G2) underwent a two-stage procedure starting with a less invasive temporary internal distraction technique (LITID) prior to PSF. The radiological outcomes, PF, and QoL were documented and assessed over a monitoring period ranging from 2 to 5 years. Results: The average preoperative major curves (MCs) measured 124° and 122° in G1 and G2, respectively (p < 0.426). Initial flexibility, as observed in preoperative bending films, ranged from 18% in G1 to 21% in G2 (p < 0.001). Following the ultimate surgical intervention, the MCs were corrected to 45° and 37.4° in G1 and G2, respectively (p < 0.001). The percentage correction of the MCs was higher in G2 (63% vs. 70% in G1 and G2, respectively), with significant between-group disparities (p < 0.001). The mean preoperative thoracic kyphoses (TKs) were 96.5° in G1 and 92° in G2 (p = 0.782), which were rectified to 45.8° in G1 and 36.2° in G2 (p < 0.001), equating to correction rates of 55% and 60% in the respective groups. Initially, G2 exhibited lower values for the percentage of predicted lung volume (FVC) and predicted FEV1 compared with G1 (49% and 58% vs. 54.5% and 60.8%; N.S.). Nonetheless, both groups demonstrated enhancements in their FVC and FEV1 values over the follow-up period. Conclusions: The surgical management of severe and untreated spinal curvatures in the pediatric and adolescent population can be considered safe, with a tolerable incidence of minor complications. LITID emerges as a method offering improved QoL and pulmonary function, achieving notably substantial average corrections in deformity by 70% in the coronal plane and 60% in the sagittal plane, alongside a mean increase in trunk height of 10.8 cm. Furthermore, a typical reduction of 76% in rib humps and enhancements in respiratory function, as indicated by improvements in 1 s predicted forced expiratory volume (by 25–56%) and forced vital capacity (by 35–65%), were achieved, leading to a clinically and statistically significant enhancement in QoL when evaluated using SRS-22r, without resorting to more radical, high-risk procedures.

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Section: Discussionsupporting

confidence: 90%

“…McIntosh et al examined individuals undergoing preoperative HGT and determined that employing this method led to trunk elongation and decreased friction amid the ribs and pelvis. Moreover, rib expansion within a concave region facilitates diaphragm displacement, reducing respiratory restrictions [10,32,35].…”

Section: Discussionmentioning

confidence: 99%