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Zielke instrumentation
K W Hammerberg1, M F Rodts, R L DeWald
1Department of Orthopedic Surgery, Rush-Presbyterian-St Luke's Medical Center, Chicago, Illinois 60612.
Orthopedics
|October 1, 1988
Summary
The Ventral Derotational Spondylodesis (VDS) system effectively corrects idiopathic scoliosis curves, offering significant spinal alignment improvements. However, complications like pseudarthrosis and rod breakage require careful consideration.
Area of Science:
- Orthopedic Surgery
- Spinal Instrumentation
- Scoliosis Treatment
Background:
- Idiopathic scoliosis often requires surgical intervention for progressive spinal deformities.
- Traditional spinal instrumentation methods have limitations in correcting complex curves.
- The Ventral Derotational Spondylodesis (VDS) system was developed to address these challenges.
Purpose of the Study:
- To evaluate the efficacy and outcomes of the Zielke Ventral Derotational Spondylodesis (VDS) system.
- To assess the VDS system's ability to correct major and minor spinal curves in idiopathic scoliosis.
- To identify complications associated with VDS instrumentation.
Main Methods:
- Review of 25 consecutive patients who underwent VDS instrumentation for lumbar or thoracolumbar idiopathic scoliosis.
- Detailed description of the VDS surgical technique, including patient and level selection.
- Analysis of curve correction in both major and minor spinal curvatures.
Main Results:
- Average correction of the major curve was 76%.
- Average correction of the minor curvature was 47%.
- A 20% incidence of pseudarthrosis and rod breakage was observed as a significant complication.
Conclusions:
- The Zielke VDS system is a powerful tool for correcting selected lumbar and thoracolumbar idiopathic scoliosis curves.
- VDS instrumentation provides substantial correction of major curves and improves spinal alignment.
- Potential complications, including pseudarthrosis and rod breakage, necessitate further investigation and management strategies.