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Posterior instrumentation in scoliosis
J K Webb1, R G Burwell, A A Cole
1Centre for Spinal Studies and Surgery, Queen's Medical Centre, Nottingham, UK.
Summary
Posterior spinal fusion and instrumentation in scoliosis evolved from single-plane to tri-planar correction. Modern techniques focus on segmental derotation for improved spinal balance and deformity correction.
Area of Science:
- Orthopedic surgery
- Spinal deformity correction
- Biomechanical engineering
Background:
- Scoliosis treatment aims to correct deformity, balance the spine in three planes, minimize fusion length, and protect the spinal cord.
- Early posterior instrumentation by Harrington focused solely on frontal plane correction.
Purpose of the Study:
- To outline the evolution of posterior spinal instrumentation techniques for scoliosis.
- To highlight advancements in achieving tri-planar correction and spinal derotation.
Main Methods:
- Review of historical development of posterior spinal instrumentation for scoliosis.
- Description of progression from biplanar to tri-planar correction strategies.
- Discussion of recent advancements in segmental derotation.
Main Results:
- Posterior instrumentation has evolved significantly since Harrington's initial design.
- Correction capabilities have advanced from frontal plane only, to biplanar (frontal and sagittal), and now to tri-planar (including derotation).
- Current techniques emphasize segmental derotation of specific vertebrae.
Conclusions:
- The field of posterior spinal instrumentation for scoliosis has progressed towards comprehensive three-dimensional correction.
- Advancements aim for optimal deformity correction and spinal balance with shorter fusion constructs.
- Segmental derotation represents the latest frontier in surgical management of scoliosis.