Anterior Release and Fusion followed by Posterior Correction in Scoliosis: A Comparison of Open Thoracotomy and the Thoracoscopic Approach

Park, Weon Wook; Nam, Tae Wook; Kim, Jeong Tae; Park, Jong Ho; Park, Dong Wook; Lee, Jung Sub; Kang, Dong Joon

Abstract

PURPOSE
To compare the results of the thoracoscopic approach and open thoracotomy retrospectively for scoliosis requiring anterior release and fusion followed by posterior correction. MATERIALS AND METHODS: Of 22 rigid scoliosis patients, 10 open thoracotomy cases (group I) were compared with 12 thoracoscopic cases (group II) in terms of blood loss, operation time, and chest pain (visual analogue scale, VAS), as checked 1 week after operation and final follow-up, correction ratio of major curve and complications. Posterior correction was performed 2 weeks after anterior release. Statistical analysis of group differences was performed using the t-test or the Mann-Whitney. RESULTS: Blood loss was higher in group I, 268.0 mL (200-530) than in group II, 195.0 mL (100-280) (p=0.047). The operation time was shorter in group I, 108.0 minutes (90-180) than in group II, 175.0 minutes (120-240) (p=0.001), and chest pain (visual analogue scale, VAS) which was checked at 1 week after operation and at final follow-up was milder in group II, 3.9 (3-6), 1.6 (0-3) than in group I, 5.8 (4-8), 3.1 (1-5) (p=0.005, p=0.013, respectively). The correction ratios of the major curve between two groups were similar. The cosmetic aspects of the thoracoscopic approach were favorable. The postoperative complications were 1 pneumothorax in each group and 3 chronic chest pain in group I. CONCLUSIONS: The results of thoracoscopic approach for anterior release were compared favorably with standard open thoracotomy in terms of blood loss, chest pain both postoperatively and at final follow-up, and cosmetics, but unfavorably for operation time.