operative treatment of idiopathic adolescent scoliosis
TRANSCRIPT
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George Sapkas1st Orthopaedic Department
Medical School – Athens University
University Hospital “ATTIKON”
Operative treatment of Idiopathic
Adolescent Scoliosis
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Etiology Etiology
Idiopathic Idiopathic Neuromuscular Neuromuscular
– Cerebral palsyCerebral palsy– Muscular dystrophyMuscular dystrophy
Congenital Congenital Traumatic Traumatic Tumors Tumors etcetc..
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(( Marfan syndrome)Marfan syndrome)Defecting gene Defecting gene
coding for f ibri l incoding for f ibri l in
• Fibrus dysplacia Fibrus dysplacia (bone collagen (bone collagen abnormality)abnormality)
• Muscle disorders Muscle disorders (Duchene musclear (Duchene musclear distrophy)distrophy)
• Soft t issue Soft t issue collagen disorder collagen disorder (Marfan syndrome)(Marfan syndrome)
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Neuro f ibromatosis Neuro f ibromatosis
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Spinal cord tumor Spinal cord tumor operated operated
Post laminectomy Post laminectomy instabil i ty instabil i ty
Scoliotic deformityScoliotic deformity
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Arnold – Chiari syndromeArnold – Chiari syndromeSyringomyelia Syringomyelia
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CongenitalCongenital
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Tumor – Osteoid osteomaTumor – Osteoid osteoma
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Idiopathic Adolescent Idiopathic Adolescent ScoliosisScoliosis
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Etiology
Idiopathic Adolescent Scoliosis
1. Genetic factors2. Neurologic -//-3. Hormonic -//-4. Bio - engineering -//-5. Developmental - //-6. Chemical -//-• Melatonin• Calmodulin
7. Etc.
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Is the labyrinthine dysfunction a causative Is the labyrinthine dysfunction a causative factor in idiopathic scoliosis?factor in idiopathic scoliosis?– Kapetanos G. et al, Kapetanos G. et al,
Stud Health Technol Inform 2002;91:7-9Stud Health Technol Inform 2002;91:7-9
No correlation was found between the convexity of the curvature and the direction of nystagmus in posture tests. There were no significant differences between left – and right – beating nystagmus.
Greek Research - Publications
a.
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Idiopathic scoliosis: a transcranial magnetic Idiopathic scoliosis: a transcranial magnetic stimulation studystimulation study– Kapetanos G. et al,Kapetanos G. et al,
J. Musculo skelet Neuronal Interact 2007;155-60J. Musculo skelet Neuronal Interact 2007;155-60
The present TMS data do not support the concept of a generalized brain assymetry in IS. In lower limbs, a trend towards increased asymetries in side to side differences of CMCT and cortical latencies was detected probably representing subclnical involvement of the corticospinal tracts secondary to mechanical compression. Finally, it is concluded that non-decussation of the pyramidal tracts is not involved in the pathogenesis of IS
Greek Research - Publications
b.
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Genetic factorsGenetic factors ((polygenic inheritance pattern)polygenic inheritance pattern)
MotherDaughter
Daughter Mother
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The most common spinal curves
A B C D
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Right thoracic Right thoracic apical vertebraapical vertebra 8 8 thth oror 9 9 thth
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Thoracolumbar curveThoracolumbar curveApical vertebraApical vertebra 12 12 thth thoracicthoracic oror 1 1 stst lumbarlumbar
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Lumbar curveLumbar curve apicalapical vertebravertebra 2 2 ndnd lumbarlumbar
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Double curveDouble curveapical vertebraapical vertebra 8 8 thth thoracicthoracic andand 2 2 ndnd lumbarlumbar
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King’s - Moe’s Classif ication
Spinal Curves
• Type I, primary lumbar curve greater than the compensatory thoracic curve;
• Type II, primary thoracic curve with compensatory lumbar curve;
• Type III, short pure thoracic curve;
• Type IV, long C-shaped thoracolumbar curve;
• Type V, double thoracic curve with extension into cervical spine and compensatory lumbar curve.
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Lenke’s Lenke’s classif icatioclassif icatio
nn
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Lenke’s Lenke’s classif icationclassif ication
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Lenke’s Lenke’s classif icationclassif ication
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Idiopathic Adolescent
Scoliosis
Treatment
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Vertebral alignment – balance
disorganization
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Treatment of curves Treatment of torsion
2D 3D
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Risser signRisser sign
Vertebral ring apophysis
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Type of Curve
Curve magnitude
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(Risser sign )
Deterioration Deterioration vsvs
Chronological ageChronological age
Deterioration vs
biological maturity
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Exercises
The effectiveness of exercises in individuals with idiopathic adolescent scoliosis has not been proved
Ebenbichler G. et al, 1994Universitat Klinik für
PhysikahischeMedizin und Rehabilitation,
Wien
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Braces
MilwaukeeBostonStagnaraChennauMichelLyoneseetc
Idiopathic Idiopathic adolescent adolescent scoliosis scoliosis
< 40< 40 οο
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Indications for bracingIndications for bracing
Deterioration of the curveDeterioration of the curve 1155οο 2200οο
Risser sign Risser sign 1 - 2 - 3 1 - 2 - 3
Maximum curve Maximum curve < 4< 400οο
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Idiopathic Adolescent
Scoliosis
Operative treatment
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Indications for Operative Indications for Operative TreatmentTreatment
Magnitude of the curveMagnitude of the curve> 40> 40oo – 45 – 45oo
Body deformityBody deformity Deterioration of the Deterioration of the
curvecurve Skeletal maturitySkeletal maturity Curve typeCurve type
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Preoperative Preoperative evaluation evaluation
and and planningplanning
Stable vertebra
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Dynamic bending x-raysDynamic bending x-rays
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Dynamic bending x-raysDynamic bending x-rays
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CT ScanCT Scan
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MR-IMR-I
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Past methods Past methods of of
operative treatmentoperative treatment
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Harrington Harrington rod and rod and hookshooks
(distraction)(distraction)
Flat back
Dislodgment
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Luque rods Luque rods and sublaminar wiresand sublaminar wires
(translation)(translation)
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Hartshil l rod and interspinous wires Hartshil l rod and interspinous wires -Wisconsin technique--Wisconsin technique-
(translation)(translation)
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Harrington rods and hooks Harrington rods and hooks – –
Luque rod and sublaminar wiresLuque rod and sublaminar wires(distraction – translation)(distraction – translation)
Flat back
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Cotrell – Dubousset systemCotrell – Dubousset system(distraction - derotation)(distraction - derotation)
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Rods - screws – hooks Rods - screws – hooks and sublaminar wiresand sublaminar wires
(distraction – translation – derotation)(distraction – translation – derotation)
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Rods – screws and hooksRods – screws and hooks(derotation – distraction – translation)(derotation – distraction – translation)
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Current Current operative techniquesoperative techniques
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Neuro-monitoring Neuro-monitoring
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Navigation systemNavigation system
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Allografts
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Anterior proceduresAnterior procedures
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Anterior procedureAnterior procedure
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Advantage : Limited number of included vertebra
Disadvantage : Orthopaedic surgeons are not familiar with the anterior procedure
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Posterior proceduresPosterior procedures
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Α. Μ.Α. Μ.F – F – 13+213+2TT55 – – TT99 ( (RR) 40) 40οο
TT1010 - - LL44 ( (LL) 50) 50οο King IKing I
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Β. Β. PRPR..F – F – 1616TT66 - - TT1111 ( (RR) 70) 70οο
TT1212 - - LL44 ( (LL) 52) 52οο King IIKing II
Posterior procedures
Advantage : Orthopaedic surgeons are familiar with the posterior spinal procedures.
Disadvantage : Greater number of included vetrebra
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Cases Cases
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AA. . DD..F – 16+10F – 16+10TT66 - - TT1111 ( (RR) ) 2200οο
TT1212 - - LL44 ( (LL) ) 5050οο King IKing I
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Ε. Ε. FRFR..F – F – 16+1016+10TT66 - - TT1111 ( (RR) 70) 70οο
TT1212 - - LL44 ( (LL) 52) 52οο King IIKing II
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Χ. Β.Χ. Β.F – F – 1515TT66 - - TT1111 ( (RR) 62) 62οο
TT1212 - - LL44 ( (LL) 50) 50οο King IIKing II
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ΜΜ... . SS..F – 21F – 21TT55 - - TT1111 ( (RR) 45) 45οο King IIIKing III
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ΑΑNN. . SKSK..F – F – 3131TT66 - - TT1111 ( (RR) 43) 43οο
TT1212 - - LL44 ( (LL) 30) 30οο King IIIKing III
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Ε. Β.Ε. Β.
F – F – 13+013+0 TT1100 – – LL33 ( (RR) 45) 45οο
King IVKing IV
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Α. Α. KK..F – F – 1188++55TT55 – – TT99 ( (RR) 40) 40οο
TT1010 - - LL44 ( (LL) ) 4848οο King VKing V
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Autografts
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Double Spinal Deformity: a) Idiopathic adolescent scoliosis
b) Spondylolysis - spondylolisthesis
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Post operative correction
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Rib plasty
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Complications Complications
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FLAT BACK
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Hook dislodgment Hook dislodgment
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Idiopathic adolescent scoliosis operated 14 yrs agoHartshill system
Disc degeneration And arthritis below spondylodesia
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Extension of spondylodesia
Dynesys dynamic system
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Conclusions Conclusions Operative treatment of Operative treatment of
Idiopathic Adolescent Idiopathic Adolescent Scoliosis using the Scoliosis using the current trends of surgery current trends of surgery is able to provide: is able to provide:– Very satisfactory results Very satisfactory results
with great safetywith great safety
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Conclusions Conclusions Comparing the Comparing the anterior anterior
vs the posteriorvs the posterior procedure there is an procedure there is an advantage of the anterior advantage of the anterior procedure related to the procedure related to the limited number of vertebra limited number of vertebra included in the included in the spondylodesia but the spondylodesia but the posterior procedures are posterior procedures are more familiar to more familiar to orthopaedic surgeonsorthopaedic surgeons
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University Hospital “ATTIKON”