Clinical Trial: Scoliosis Surgery - ST2R (Simultaneous Translation on Two Rods)

Study Status: Active, not recruiting
Recruit Status: Active, not recruiting
Study Type: Interventional

Official Title: Multicenter Study on the Contribution of Surgical Treatment by ST2R Technique (Simultaneous Translation on Two Rods) in Scoliosis of the Children and Adolescents

Brief Summary:

Although practiced for many years, surgical correction of scoliosis is relatively subject published for idiopathic scoliosis and a few published for other types of scoliosis.

This study involves a creation of an observatory of patients undergoing scoliosis by ST2R reduction technique (Simultaneous Translation on Two Rods) associated with the PASS ® system.

The main objective is to analyze the three-dimensional correction of the deformity after intervention and its maintenance over time depending on the etiology of scoliosis.

This research is conducted in pediatric surgery services specialized in this technique.

Correcting radiographic parameters is directly related to the surgical procedure. The quality of life of patients is indirectly affected by the surgery. Secondary objectives are to analyze the surgical technique and to evaluate its impact on the quality of life of patients.

This study will firstly to have a better understanding in:

  • Scoliosis of the children and adolescents and their surgical treatment;
  • The impact of the surgical procedure by the ST2R technique on the three-dimensional correction, and the patient's quality of life; and secondly, better management of patients requiring surgery for scoliosis as well as a public health impact.

Detailed Summary:

The correction of the deformity in three planes of space is the main goal of surgical treatment of children's scoliosis and adolescents.

The techniques provide a satisfactory correction of the deformity in the coronal plane but remain insufficient in the sagittal plane and in particular for the correction of thoracic hypokyphosis.

Dr. Clarke and his team have shown that ST2R reduction technique (Simultaneous Translation on Two Rods) associated with the PASS ® system gave a good correction of the thoracic hypokyphosis of idiopathic scoliosis. The results of his single-center studies have shown that ST2R technique allowed to restore normal thoracic kyphosis with an average gain of 23 ° in patients preoperatively hypokyphosis, higher than the gains made by other techniques (rotation of the shaft, close off Gradually, in situ bending), while providing a frontal correction 70%, similar to results reported by other techniques. The results of this technique for non idiopathic scoliosis are still to be analyzed.

The creation of an observatory of children's and adolescents scoliosis (idiopathic, neuromuscular, etc ...) operated by the technique of reduction by simultaneous translation on two rods with the same instrumentation will:

  • Firstly, to confirm or refute the first published results idiopathic scoliosis
  • And secondly to analyze the results of the same technique on all other scoliosis.

The impact of the intervention on the quality of life of patients is an essential element that will be evaluated.


Sponsor: Fondation Lenval

Current Primary Outcome: Assessment radiographically of the dimensional scoliosis correction in the coronal plan [ Time Frame: 60 months after chirurgical intervention ]

Cobb angle measurements of curvatures


Original Primary Outcome: Same as current

Current Secondary Outcome:

  • Assessment of scoliosis in preoperative [ Time Frame: baseline ]
    Cobb angles measurements of curvatures
  • Assessment radiographically of the dimensional scoliosis correction in the coronal plan [ Time Frame: 5 minutes after the end of the chirurgical intervention ]
    Cobb angle measurements of curvatures
  • Assessment radiographically of the dimensional scoliosis correction in the sagittal plan [ Time Frame: 5 minutes after the end of the chirurgical intervention ]
    angle of thoracic kyphosis vertebrae between T4 and T12
  • Assessment radiographically of the dimensional scoliosis correction in the axial plan [ Time Frame: 5 minutes after the end of the chirurgical intervention ]
    measure of the vertebral rotation of the apical vertebra of the main curvature
  • Assessment of the postoperative complications [ Time Frame: 60 month after the chirurgical intervention ]
    number of each postoperative complication
  • Assessment of the intra operative complications [ Time Frame: 5 minutes after the end of the chirurgical intervention ]
    number of each intra operative complication
  • Assessment of the patient's quality of life [ Time Frame: 60 month after the chirurgical intervention ]
    result to a self-administered questionnaire (SRS22)
  • Assessment radiographically of the dimensional scoliosis correction in the sagittal plan [ Time Frame: 60 months after chirurgical intervention ]
    angle of thoracic kyphosis vertebrae between T4 and T12
  • Assessment radiographically of the dimensional scoliosis correction in the axial plan [ Time Frame: 60 months after chirurgical intervention ]
    measure of the vertebral rotation of the apical vertebra of the main curvature


Original Secondary Outcome: Same as current

Information By: Fondation Lenval

Dates:
Date Received: May 31, 2016
Date Started: May 2013
Date Completion: November 2020
Last Updated: June 28, 2016
Last Verified: June 2016