Congenital scoliosis with hemivertebrae is an embriologic, rigid and progressive vertebral abnormality. In this study, evaluation of the clinical data of the congenital hemivertebrae patients who underwent posterior transpedicular egg shell procedure, short segment convex side posterior instrumentation and fusion was purposed. Between 1996 and 2007, 19 patients (eight male and eleven female), mean 11.63 ± 1.66 years old with single-level hemivertebrae related congenital scoliosis underwent hemivertebra excision, short segment convex side posterior instrumentation and fusion at our institution with an average follow-up period of 62.53 ± 9.25 months. 14 patients had thoracal and five patients had lumbal hemivertebrae. The mean of Risser scale was 2 and the mean of preoperative Cobb angles was 39.84° ± 2.99°. The mean of postoperative and late postoperative Cobb angles were 25.47° ± 2.8° and 28.63° ± 9.25° respectively. There was significant difference statistically between preoperative and postoperative Cobb angles (p<0.05). In light of the results of this study, we concluded that posterior transpedicular egg shell procedure, short segment convex side posterior instrumentation and fusion were satisfactory for the treatment of congenital hemivertebra.
Keywords: Congenital scoliosis, hemivertebra, egg shell procedure, convex fusion