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Paper Information

Journal:   IRANIAN JOURNAL OF ORTHOPAEDIC SURGERY   SPRING 2008 , Volume 6 , Number 3 (23); Page(s) 113 To 116.
 
Paper: 

SHORT-TERM TREATMENT OUTCOME OF ADOLESCENT IDIOPATHIC SCOLIOSIS WITH HYBRID POSTERIOR INSTRUMENTATION

 
 
Author(s):  ERFANI M.A., NOURAEI H., SHAHRIARI IMAN*
 
* SHIRAZ UNIVERSITY OF MEDICAL SCIENCES
 
Abstract: 

Background: The more common technique in instrumentation of adolescent idiopathic scoliosis has been multisegmental fixation and use of hooks and rods. This study is aimed at locking at short-term results of hybrid fixation with pedicular screws in lumbar area and hooks in thoracic area of scolotic curves.
Methods: Thirty four cases (28 girls, 6 boys) of adolescent idiopathic scoliosis that had received spinal fusion with pedicular screw in lumbar and hook in thoracic area for rod fixation and instrumentation were retrospectively evaluated, with mean age of 14.4 (11-27) years and 33.6 (24-72) months follow-ups. The correction of coronal, sagital, rotational deformities and maintenance of correction at follow-up were assessed. Clinical evaluation according to Scoliosis Research Society questionnaire (SRS-24) was also performed.
Results: The initial average coronal angle of 63.2 degrees improved to 27.1 degrees after surgery. This corresponded with the observed correction in preoperative bending films. 60 percent de-rotation and 55 percent improvements in deviation from midline axis were also observed. The angulations of first vertebra and first disc below fusion showed, respectively, 51 and 70 percent improvement. According to Lenke’s classification, the “lumbar modifier” in sagital plane of (+) 1.1 degrees changed to (-) 8.9 degrees.
Conclusions: Use of pedicular screws in lumbar region during instrumentation of adolescent idiopathic scoliosis produces better correction and lowers the change of “correction loss” in short time.

 
Keyword(s): SCOLIOSIS, SPINAL FUSION, SPINE, ADOLESCENT
 
References: 
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