• 作者：J. Pizones ; A. Mardomingo ; ^{alexmardo@gmail.com} ; E. Izquierdo ; F. Sá ; nchez-Mariscal ; L. Zú ; ñ ; iga ; P. Á ; lvarez
• 关键词：Columna vertebral ; Escoliosis idiop&aacute ; tica del adolescente ; Liberació ; n posterior ; Instrumentació ; n hí ; brida
• 刊名：Revista Espa?ola de Cirug¨ªa Ortop¨¦dica y Traumatolog¨ªa
• 出版年：2010
• 出版时间：March-April 2010
• 年：2010
• 卷：54
• 期：2
• 页码：93-99
• 全文大小：819 K

Purpose

To compare the results of posterior correction using hybrid instrumentation and classical posterior release with those obtained with an extended posterior release.

Material and methods

We carried out a retrospective cohort study of 46 patients diagnosed with adolescent idiopathic scoliosis (AIS). A posterior correction was carried out using hybrid instrumentation. In the first group, a standard posterior release (SPR) was performed, whereas in the second an extended release (EPR) was carried out, resecting all posterior ligaments and performing an extended bilateral facetectomy. The results of the measurements were compared using pre-op, post-op and 2-year-follow-up anteroposterior and lateral teleradiographs. Clinical results were evaluated using the SRS 22 questionnaire.

Results

There were no differences as regards gender, age, curve type, instrumented levels, OR time or pre-op Cobb's angle (SPR: 60¡ã¡À10¡ã; EPR: 59¡ã¡À8¡ã) of the principal curve. In the extended release group the correction obtained was significantly greater at post-op (p<0.001) and at 2 years (p<0.05). Correction of the proximal and lumbar curve was similar in both groups, with no significant differences. Minor complications were similar in both groups, with no serious complications.

Conclusion

Multiple-level posterior release improves correction of the principal curve on the coronal plane in patients with AIS, without an increase in the complications rate. The procedure also extends the arthrodesed area and facilitates introduction of the wires.