Retrospective Image Analysis of Degenerative Lumbar Disease Patients

Status Completed

Clinical Trial Summary

The Dynesys dynamic stabilization (DDS) system is considered a motion-preserving device. However, studies addressing the change in the range of motion (ROM) are limited. Therefore, this study aimed to investigate the factors influencing ROM change at the index surgical level, supra-index level, and whole lumbar spine, in addition to the association between ROM preservation and the incidence of screw-loosening.

Clinical Trial Description

Decompression with instrumented fusion is an effective surgical intervention for lumbar degenerative spondylolisthesis with spinal stenosis. However, the range of motion (ROM) decreased at the index surgical level may lead to an increased ROM at the non-surgical level, increase biomechanical stress at the transitional adjacent segment, and lead to adjacent segment degeneration (ASD) . The Dynesys dynamic stabilization (DDS) system is a pedicle screw-based, motion-preserving, and non-fusion stabilization developed as an alternative to the rigid instrumented fusion for degenerative spondylolisthesis. The aim of the DDS is to maintain segmental motion at index levels and to reduce the incidence of ASD. However, the actual impact of ROM has remained elusive. Prior studies have reported an average ROM loss of 1.1º to 17.3º 7 at index surgical level at an average of 24 months follow-up. The change of ROM at index surgical, supra-index, and whole lumbar spine following DDS remains unclear. This study aims to investigate the factors influencing the ROM change at index surgical level, supra-index level, and whole lumbar spine, and the association between ROM preservation and the incidence of screw-loosening. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04886557
Study type	Observational
Source	Taipei Veterans General Hospital, Taiwan
Contact
Status	Completed
Phase
Start date	January 2007
Completion date	December 2018

View Details

See also
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