Rod Shape Changing After Scoliosis Correction Surgery

Status Completed

Clinical Trial Summary

The change of the fixation-rod after posterior srew-rod fixation segmentdesis is not widely known. The recent development of the 3D scanning technics and the opportunities of the EOS 2D/3D system made us possible to have the exact rod shape immediately after implantation, and at each control examination. These progressions made us available to follow up the shape changing of the fixation-rod, hereby the changing of the correction.

Clinical Trial Description

The adolescent idiopathic scoliosis can affect the 0,5-2% of the European population. One of the widely accepted treatment of severe scoliosis (Cobb angle is over 40-50°, or more than 10° progression observed a year) is posterior correction segmentdesis with screw and rod instrumentation. As a scoliosis treatment center, about 90-110 scoliosis correction surgeries are performed in our department, using conventional preoperative planning, coronal and sagittal translation technique from posterolateral approach. An EOS 2D/3D system is available in our department making possible the scanning of the patient with upright biplanar ultra-low dose x-rays technique. The SterEOS software makes us possible to reconstruct the surface of the spine, pelvis and lower limb. The biplanar modality of the images makes possible to 3D reconstruct any simple shape using CAD (computer-aided design) softwares. The recent updates in the 3D scanning technology also made us possible to perform intraoperative scannings without harming the sterility. The aim of the study to define the change of the fixation-rod's shape after scoliosis correction surgery. Main hypothesis: there is significant change in the rod shape after implantation Secondary hypothesis 1: during the implant of the rod, it will loose from the prebent correction depending of the severity and rigidity of the curve. Secondary hypothesis 2: in the early stage of the rehabilitation, after the mobilization the shape of the rod (and the spinal parameters) can change Secondary hypothesis 3: after the 3. month postoperatively the shape of rod does not change anymore ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05033171
Study type	Interventional
Source	University of Pecs
Contact
Status	Completed
Phase	N/A
Start date	September 1, 2019
Completion date	December 31, 2022

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.