• Ana Silmia Prosthetics and Orthotics Department, Polytechnic of Health Sciences Jakarta 1
  • Anna Ignas Mella Sirindhorn School of Prosthetics & Orthotics, Mahidol University, Thailand
  • Pattaraporn Kongsatan 2Sirindhorn School of Prosthetics & Orthotics, Mahidol University, Thailand
  • Aphinat Chirawattanaphan 2Sirindhorn School of Prosthetics & Orthotics, Mahidol University, Thailand
  • Putri Amelia Orthopaedia Indonesia


thoracolumbosacral orthosis, adolescent idiopathic scoliosis, active and passive mechanism of rigid bracing, opening area, in-brace curve correction


Background: Thoracolumbosacral orthosis (TLSO) is often prescribed to prevent curve development in Adolescent Idiopathic Scoliosis (AIS) patients. One of the principles of correcting scoliosis is active and passive mechanism of rigid braces when tissue moves to the concave side and corrective force is applied to the convex side to improve trunk balance. Objective: Investigate trunk balance and curve correction improvement by providing the opening at both thoracic and lumbar opposite to the corrective forces. Methods: Three female AIS with double major curve pattern following SRS criteria who wore TLSO for 6 months. Participants were cast and fitted with two different designs of TLSO, three radiographic examinations, including out-brace (D0), in-brace without opening design (D1), and in-brace with opening design (D2). Data were collected by measurement of TCA, LCA, CD, TAVT, and LAVT. Data analysis using SPSS 20 and analyzed by One-Way ANOVA. Patient satisfaction questionnaire was analyzed using Conventional Content Analysis. Result: Percentage of thoracic and lumbar curve reduction in D2 was greater than in D1 (TCA=28.5%; LCA=36%). CD of D1 (0.96±0.86 cm) and D2 (1.08±0.23 cm) was improved from D0. Improvement of LAVT in D2  is greater than D1 compared to D0 (1.95°±0.28°). Patient satisfaction in D2 is greater (4.40) in comparison with D1 in terms of weight, easy donning, doffing, and comfort. Conclusion: In-brace curve correction ratio for D2 is significantly greater than for D1, as is the improvement in CD and LAVT. The survey results indicated that participants were more satisfied with D2 than D1.


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How to Cite

Silmia, A., Mella, A. I., Kongsatan, P., Chirawattanaphan, A., & Amelia, P. (2022). THE COMPARISON OF IN-BRACE CORRECTION OF THORACOLUMBOSACRAL ORTHOSIS WITH AND WITHOUT OPENING AREAS FOR ADOLESCENT IDIOPATHIC SCOLIOSIS PATIENT: PILOT STUDY. Journal of Prosthetics Orthotics and Science Technology, 1(2), 68–74.