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DR. SHASHIDHAR B K
Consultant Spine Surgeon
Bangalore Spine Specialist Clinic
Website: http://spinesurgeonbangalore.com/
For Appointment contact : Call: 08025442552( 9 am to 9 pm). Whatsapp: +919448311068.
Email: drshashidharbk@gmail.com.
Evolution of Surgical Strategies/ Instrumentation In Scoliosis
The Hierarchy of Evolution
Halting of curve progression
Solid bony fusion
Safe and solid instrumentation
Coronal plane correction and balance
Sagittal plane correction and balance
Surveillance and preservation of spinal cord and nerve root function
Better understanding the 3D biomechanics of the normal and scoliotic spine
3D spine and trunk correction
Preservation of function
Non-fusion techniques
Less is more None is Perfect
Hippocrates (400BC)
Axial traction , External distraction and gravity assisted
correction
Galen
Coined terms 2nd century AD:S, K , L
Rigid jackets and chest binders
Ambroise Paré (1579)
New breast plates be made as the individual grew.
Bracing had little use once a patient reached skeletal maturity.
First spinal fusion for scoliosis.
Goal was to halt curve progression
Feathered fusion
The pseudarthrosis rate 60%.
Hibbs and Risser
Turnbuckle cast preoperatively, with hinges in the orthogonal planes to generate
traction and bending forces to maximize correction
Window in the cast’s dorsum – To operate.
Walter Blount (left) and Albert Schmidt (right)
Milwaukee Brace in the early 1950s
Removable distraction jacket for the treatment of progressive idiopathic
spinal deformity
He emphasized the importance of bone graft placement in the facetectomy defect and
hinged transverse process fragmentation and rotation.
Advocated for longer constructs
Fusion begin and end with neutral vertebrae at the proximal and distal ends of the curve.
Dramatic improvement in fusion success rates to nearly 85%
Pseudarthrosis
Implant corrosion and breakage
Hook dislodgements.
Long-lasting postoperative immobilisation
Flattening in both the coronal and sagittal plane
Non segmental fixation
Large rods
Limited correction
TRANSLATION
Titanium cables and polyester bands (universal clamps, Zimmer Spine,
Bordeaux/France)
Bands provide more contact area than wires or cables
Lower risk for cut out through the lamina
1980s Cotrell-Dubousset instrumentation system (CD).
Multiple fixation points
Variety of hook and rod combinations.
Correction of the spine in the coronal, sagittal, and axial planes
Hybrid variants:
Hook anchors at the top and the bottom of the curve with Wisconsin wires in between
Hook anchors at the top and pedicle screw anchors at the bottom of the curve with
sublaminar wires in between;
Proximal hook anchors and distal pedicle screw anchors.
NEURO MONITORING
ALLOGRAFT
EOS X RAYS
NAVIGATION
3 D PRINTING
“Evidence-Based Medicine: Corporate Medicine's Corrupted Instrument
POSTERIOR
SURGERY NOT
GOLD
STANDARD?
Evolution of Anterior surgery
for scoliosis
FUSION LESS ANTERIOR
SOLUTIONS : FUTURE?
THANK YOU

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Evolution of Spine Surgery Strategies

  • 1. DR. SHASHIDHAR B K Consultant Spine Surgeon Bangalore Spine Specialist Clinic Website: http://spinesurgeonbangalore.com/ For Appointment contact : Call: 08025442552( 9 am to 9 pm). Whatsapp: +919448311068. Email: drshashidharbk@gmail.com. Evolution of Surgical Strategies/ Instrumentation In Scoliosis
  • 2.
  • 3.
  • 4. The Hierarchy of Evolution Halting of curve progression Solid bony fusion Safe and solid instrumentation Coronal plane correction and balance Sagittal plane correction and balance Surveillance and preservation of spinal cord and nerve root function Better understanding the 3D biomechanics of the normal and scoliotic spine 3D spine and trunk correction Preservation of function Non-fusion techniques Less is more None is Perfect
  • 5. Hippocrates (400BC) Axial traction , External distraction and gravity assisted correction
  • 6. Galen Coined terms 2nd century AD:S, K , L Rigid jackets and chest binders
  • 7. Ambroise Paré (1579) New breast plates be made as the individual grew. Bracing had little use once a patient reached skeletal maturity.
  • 8. First spinal fusion for scoliosis. Goal was to halt curve progression Feathered fusion The pseudarthrosis rate 60%.
  • 9. Hibbs and Risser Turnbuckle cast preoperatively, with hinges in the orthogonal planes to generate traction and bending forces to maximize correction Window in the cast’s dorsum – To operate.
  • 10. Walter Blount (left) and Albert Schmidt (right) Milwaukee Brace in the early 1950s Removable distraction jacket for the treatment of progressive idiopathic spinal deformity
  • 11. He emphasized the importance of bone graft placement in the facetectomy defect and hinged transverse process fragmentation and rotation. Advocated for longer constructs Fusion begin and end with neutral vertebrae at the proximal and distal ends of the curve. Dramatic improvement in fusion success rates to nearly 85%
  • 12.
  • 13. Pseudarthrosis Implant corrosion and breakage Hook dislodgements. Long-lasting postoperative immobilisation Flattening in both the coronal and sagittal plane Non segmental fixation Large rods Limited correction
  • 14.
  • 16. Titanium cables and polyester bands (universal clamps, Zimmer Spine, Bordeaux/France) Bands provide more contact area than wires or cables Lower risk for cut out through the lamina
  • 17. 1980s Cotrell-Dubousset instrumentation system (CD). Multiple fixation points Variety of hook and rod combinations. Correction of the spine in the coronal, sagittal, and axial planes
  • 18.
  • 19. Hybrid variants: Hook anchors at the top and the bottom of the curve with Wisconsin wires in between Hook anchors at the top and pedicle screw anchors at the bottom of the curve with sublaminar wires in between; Proximal hook anchors and distal pedicle screw anchors.
  • 20.
  • 21.
  • 22.
  • 23.
  • 29. “Evidence-Based Medicine: Corporate Medicine's Corrupted Instrument
  • 31. Evolution of Anterior surgery for scoliosis