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  • Title: [Simple bony fusion or instrumented hemivertebra excision in the surgical treatment of congenital scoliosis].
    Author: Repko M, Krbec M, Burda J, Pesek J, Chaloupka R, Tichý V, Neubauer J.
    Journal: Acta Chir Orthop Traumatol Cech; 2008 Jun; 75(3):180-4. PubMed ID: 18601815.
    Abstract:
    PURPOSE OF THE STUDY: In a retrospective study, to analyze long-term radiographic results of two surgical procedures used to treat congenital scoliosis. MATERIAL AND METHODS: A total of 685 patients with congenital scoliosis were treated at the Department of Orthopaedic Surgery, Bohunice Teaching Hospital in Brno, between 1976 and 2007. Of these, 102 patients, with an average age of 6.6 years at the time of surgery, were treated by simple bony fusion, and 22 children, with an average age of 10.2 years, underwent instrumented hemivertebra excision via simultaneous anterior and posterior exposures involving fixation with cannulated compression screws and a wire loop. The follow-up periods for the former and latter groups were 14.2 and 12.1 years, respectively. RESULTS: In the patients treated by simple bony fusion, the mean correction rate was 22.1 %, with Cobb angle values averaging from 44.2 degrees pre-operatively to 38 degrees post-operatively; the correction loss was 3.9 degrees at the last follow up. In the patients with hemivertebra excision, the mean correction rate was 61 %, with pre- and post-operative values of 51.3 degrees and 20.3 degrees , respectively, and a correction loss of 1.1 degrees at the last follow-up. DISCUSSION: The early detection of a deformity and simple bony fusion in low-magnitude curves can prevent progression of scoliosis and allows for maintenance of a compensated spine. Hemivertebra excision with compression instrumentation results in a better surgical correction of the deformity. The average 61 % correction rate achieved in our patients is in agreement with the results reported by authors using the same surgical technique, as well as with the results of posterior hemivertebra resection. The best correction, 78 %, has been achieved with surgery at a very young age. Complications associated with the two techniques are rare. CONCLUSIONS: Congenital scoliosis due to failure off either formation or segmentation is indicated for surgical treatment at young age. Its early detection and subsequent surgical treatment at young age. Its early detection and subsequent surgical correction of the curve result in a long-term maintenance of a compensated spine. Instrumented hemivertebra excision provides the highest rate of correction, particularly if carried out before 3 years of age.
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