Prospective Study of Motion Preservation Evaluation Below Fusions of the Spine in Adolescent Idiopathic Scoliosis

Overview

The purpose of this study is to evaluate the relationship of A) The distal fusion level B) The total length of fusion and the post-operative range of motion in the unfused vertebral segments below the fusion in patients with Adolescent Idiopathic Scoliosis.

Full Title of Study: “Motion Preservation Evaluation Below Fusions of the Spine in Adolescent Idiopathic Scoliosis”

Study Type

  • Study Type: Observational
  • Study Design
    • Time Perspective: Prospective
  • Study Primary Completion Date: December 2019

Detailed Description

The motion behavior in the unfused segments of the spine following instrumentation is poorly understood and the implications of hyper or hypo-mobility have not been clearly defined. The purpose of this study is to evaluate the relationship of A) The distal fusion level B) The total length of fusion and the post-operative range of motion in the unfused vertebral segments below the fusion in patients with Adolescent Idiopathic Scoliosis to answer the following specific clinical questions: 1. Further elucidate the motion behavior of the distal unfused spinal segments, specifically: 1. Does motion differ at various post-operative time points (2 year post-op patients versus 5 or 10 year post-op patients)? 2. Can predictive factors be identified with post-operative altered motion? 2. Further elucidate the relationship of the motion in the unfused spinal segments to the lowest instrumented vertebrae. 3. Determine the relationship of the total length of fusion to the motion in the unfused spinal segments (i.e. compare unfused motion in the distal unfused segments in Lenke 5/6 patients fused selectively (ThL/L only) versus nonselectively (TH and ThL/L)). 4. Determine the relationship between clinical examinations (i.e. reports of pain or functional limitations) and patient reported outcomes (Health Related Quality of Life Outcome Tools) to motion in the distal unfused segments.

Arms, Groups and Cohorts

  • Harms Study Group

Clinical Trial Outcome Measures

Primary Measures

  • Evaluate post-operative range of motion in the unfused vertebral segments below the fusion in patients with Adolescent Idiopathic Scoliosis. Range of motion is assessed by side-bending to the left and to the right as well as bending forward.
    • Time Frame: 10 years
    • Data collected at patients 10 years visit.

Participating in This Clinical Trial

Inclusion Criteria

  • Patients presenting to the primary and co-investigator's facilities will be offered inclusion into the study if they meet the following inclusion criteria:

  • Patient age < 21 years – Male or female – Diagnosis of Adolescent Idiopathic Scoliosis – Any Lenke Classification type – Underwent surgical correction of the spinal deformity with a fusion – Are due for their 10 year post-operative visit Exclusion Criteria:

  • Patients will be excluded from study inclusion if they meet the following exclusion criteria: – Neuromuscular co-morbidity

Gender Eligibility: All

Minimum Age: 8 Years

Maximum Age: 21 Years

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • Setting Scoliosis Straight Foundation
  • Collaborator
    • DePuy Spine
  • Provider of Information About this Clinical Study
    • Sponsor
  • Overall Official(s)
    • Peter Newton, MD, Study Director, Rady Children’s Hospital San Deigo

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