Operative Results of Adolescent Idiopathic Scoliosis in Lerdsin Hospital
Sombat Kunakornsawat MD*, Ittirat Watcharananan MD*, Rachata Tungsiripat MD*, Thavat Prasartritha MD*
Affiliation : * Center of Excellence in Orthopedics, Lerdsin Hospital, Bangkok
Objective : Evaluate the results of the posterior instrumentation for the correction of adolescent idiopathic
scoliosis (AIS) in Lerdsin Hospital.
Materials and Methods : A retrospective study was conducted to determine the effectiveness of surgical treat-
ment of idiopathic scoliosis in Lerdsin Hospital. The pre-operative, immediate post operative, and the most
recent follow-up (minimum 2 years) x-ray of 17 patients were evaluated for curve correction and spinal
balance.
Result: The present study found that the curvatures in thoracic King type II and III were corrected by about
58% post operatively. The curve progressed 3 degrees (5%) at the end of 2 years. For lumbar curve in King
types I and II, there was the correction of 51% and 59%. After 2 years, the curve progressed around 6 degrees
(7%) and 8 degrees (14%). Trunk balance was corrected by 60% in King type III. Degrees of thoracic kyphosis
was decreased about 4 degrees.
Conclusion : Frontal and sagittal thoracic and lumbar curve correction can be satisfactorily obtained by
posterior spinal correction with instrumentation.
Keywords : Adolescent idiopathic scoliosis, Posterior instrumentation, Cobb’s angle
