Escoliosis idiopática del adolescente, análisis postoperatorio. Serie de casos

Background

Scoliosis is a three-dimensional deformity of the spine. The main objective of treatment is to avoid progression, achieve maximum correction and arthrodesis of the least number of segments, with good coronal and sagittal balance that allows a painless fusion. The aim of the study is to evaluate the results of patients who underwent to surgical fusion for adolescent idiopathic scoliosis.

Material and Methods

A case series study was conducted by analyzing medical records of patients who underwent to surgical fusion for adolescent idiopathic scoliosis. between 2011 through 2017.An analysis of demographic data, the type of curve, the density of screws used, the percentage of reduction achieved after one year, and complications was performed.

Results

Data of 27 patients was included. Lenke 1B curves were predominant. The mean preoperative Cobb angle was 66.5o with a postoperative 24.4o. Screw density presented an average of 1.4. Complications were presented in 25.6% of the patients, the most frequent being infection. Good results were obtained in the SRS-22 questionnaire.

Discussion

A density of 0.8-1.69 screws per fused vertebra has been reported with a correction percentage of 64-70%. In our results, the density of screws per fused vertebra was 1.4, achieving a reduction of 64.1%. Increasing the number of screws did not increase the degree of correction of the curves. In accordance with the literature, the most frequent complication was infection, with a low incidence of neurological injury. We conclude that the arthrodesis technique used in our center, with third-generation pedicle screws, obtains good reduction results, with a percentage of complications similar to those previously reported.