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Determination of Distal Fusion Level with Segmental Pedicle Screw Fixation in Single Thoracic Idiopathic Scoliosis / 대한척추외과학회지
Journal of Korean Society of Spine Surgery ; : 98-105, 2002.
Artigo em Coreano | WPRIM | ID: wpr-92546
ABSTRACT
STUDY

DESIGN:

Retrospective study.

OBJECTIVES:

To determine the exact distal fusion level in the treatment of single thoracic idiopathic scoliosis (King III and IV) with segmental pedicle screw fixation and rod rotation. SUMMARY OF LITERATURE REVIEW Pedicle screw fixation effectively shortens the distal fusion extent by improved 3-D deformity correction. However, the selection of distal fusion extent remains controversial in single thoracic idiopathic scoliosis. MATERIAL AND

METHODS:

Forty-two single thoracic adolescent idiopathic scoliosis patients subject to segmental pedicle screw fixation and rod rotation with minimum follow-up of 2 years (2-6 years) were analyzed. The patients were grouped according to the distal fusion level with reference to the standing neutral vertebra (NV) for comparison of deformity correction, radiological and clinical spinal balance using standing radiographs. Distal fusion down to NV +1 was in 9 patients, NV in 5, NV-1 in 9, NV-2 in 12 and NV-3 in 7 patients respectively.

RESULTS:

Preoperative 50+/-11 degrees of thoracic deformity was corrected to 13+/-5 degrees showing 74% of curve correction. Preoperative 23+/-7 degrees of lumbar deformity was corrected to 2+/-8 degrees showing 93% of curve correction. Postoperative adding on deformity was obtained in 14 patients. Significant difference was found not by King classification but by distal fusion level significantly higher chance of unsatisfactory results from not going to the NV-1 (p=0.001).

CONCLUSIONS:

In correction of single thoracic idiopathic scoliosis with segmental pedicle screw fixation, the curve should be fused to NV-1 saving one or more motion segments when compared to the fusion to the stable vertebra.
Assuntos

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Escoliose / Coluna Vertebral / Anormalidades Congênitas / Estudos Retrospectivos / Seguimentos / Classificação Tipo de estudo: Estudo observacional / Estudo prognóstico Limite: Adolescente / Humanos Idioma: Coreano Revista: Journal of Korean Society of Spine Surgery Ano de publicação: 2002 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Escoliose / Coluna Vertebral / Anormalidades Congênitas / Estudos Retrospectivos / Seguimentos / Classificação Tipo de estudo: Estudo observacional / Estudo prognóstico Limite: Adolescente / Humanos Idioma: Coreano Revista: Journal of Korean Society of Spine Surgery Ano de publicação: 2002 Tipo de documento: Artigo