Abstract
BackgroundAfter surgical treatment of adolescent idiopathic scoliosis (AIS), doctors should not only focus on the short-term surgical effect, but also pay special attention to whether the patients can live normally in the long-term. This work compared the long-term effects of thoracoscopy-assisted anterior spinal fusion (ASF) and posterior spinal fusion (PSF) in AIS.MethodsTwenty-two patients underwent thoracoscopy-assisted ASF, and twenty-three patients underwent PSF from 2004 to 2009 were involved , including 14 males and 31 females with an average age of 14.8±2.6 years, and all patients suffered from only Lenke type 1 AIS. The mean follow-up time was 102 months, the radiographic parameters and operation time, hospitalization time, fusion segments and estimated blood loss were evaluated. Comparisons between groups were made such as Cobb’s angle, thoracic kyphosis, the instrumented levels, curve correction, preoperative parameters, SF-36/SRS-22 questionnaire scores, and pulmonary function.ResultsThere was no significant difference in age, gender, Risser sign and follow-up period between two groups. The instrumentation level had an average of 6 in the thoracoscopy-assisted ASF group and 9.7 in the PSF group (P<0.001). The average correction rate of the main curve was 67.4% in ASF group versus 79.2% in PSF group (P>0.05). The postoperative thoracic kyphosis was 16.2°±3.9° in ASF group and 25.6°±4.4° in PSF group (P=0.023). Patients had momentous advancement in self-image, vitality and mental health in the SRS-22 and SF-36 questionnaires. Compared to preoperatively, the pulmonary function of both groups was satisfactorily improved at the final follow-up.ConclusionsSince there was no statistically significant difference in the general conditions of the two groups selected for this study, so we finally concluded that thoracoscopy-assisted ASF had a satisfactory correction rate, famous long-term radiography outcomes and desirable pulmonary function results. However, compared to PSF, it has a longer operation time, a more complicated surgical procedure and a weaker three-dimensional correction effect, and PSF has affirmative long-term outcomes, fewer complications, and satisfactory sagittal balance, all of which make PSF the standard operation to treat AIS.
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