J Korean Soc Spine Surg.  1999 May;6(1):57-64.

Comparison of Multiple Hook and Pedicle Screw Fixation in Congenital Scoliosis Treated by Combined Anterior and Posterior Fixation

• Suk SI
• Kim WJ
• Lee CS
• Kim JH
• Lee SM
• Chung ER
• Kim WI

Abstract

STUDY DESIGN: This is a retrospective study.
OBJECTIVES
The purpose of the study was to determine the efficacy of pedicle screw fixation in treatment of congenital scoliosis. SUMMARY OF BACKGROUND DATA: Surgical correction of rigid congenital scoliosis often ends up in less than satisfactory results. Pedicle screw fixation, enabling a rigid fixation with improved holding power may enhance the correction of these tenacious deformities.
METHODS
Twenty one congenital scoliosis treated by combined anterior release and posterior correction were analyzed after minimum follow up of 2 years (range 2-9 years). There were 11 males and 10 females. The mean age was 21.1 years (range: 11.2-29.4 years). They were divided into two groups by the posterior fixation method used. The group treated by multiple hook fixation (HF) comprised 11 patients with an index curve of 67+/-2 0degree. The group by multiple pedicle screw fixation (SF) comprised 10 patients with an index curve of 61+/-26degree. There was no statistical difference in the preoperative index curve characteristics between the two groups.
RESULTS
Immediately after the surgery, the mean index curve was 37.0degreein the HF group and 29.9degreein the SF group showing a correction of 44.7+/-19% and 49+/-17% respectively. At the final follow up, the curve was 46.9degreein the HF group and 32.3degreein the SF group showing a loss of correction of 21+/-22% and 7+/-2% respectively.
CONCLUSIONS
Pedicle screw fixation is an effective method of treating congenital scoliosis, offering an improved correction and maintenance.

Keyword

Congenital scoliosis; Pedicle screw fixation; Multiple hook fixation

MeSH Terms

Congenital Abnormalities
Female
Follow-Up Studies
Humans
Male
Retrospective Studies
Scoliosis*