In-brace correction of the Cobb angle with RSC-CAD CAM compared with 'hand made' from the original author

Method Case control study. Source: Ortholutions database from 2008 to 2009. Inclusion criteria: Patients with idiopathic scoliosis, no previous treatment (brace), younger than 15 and Risser 3 or less. Case group: 41 patients (2 males and 39 females) treated with CAD CAM RSC brace full filed the inclusion criteria. Control group: all the 27 patients (1 male 26 females) treated with ‘hand made’ RSC brace that full filed the inclusion criteria as well. Mean age was not different in the case group 11.3 y (SD 1.9) compared with the control 11.8 y (SD 2.1). Risser sign was higher (p< 0.005) in the case group 0.8 (SD 1) in comparison with the control group 0.2 (SD 0.6). The Cobb angle out-brace of the major curve was not significantly different in both groups (case= 35.2° + 13°; control= 33° + 7.7°). Minor curve was not different (case= 26.4° +/11.8°; control=28.8° +/7.2°). Results The in-brace Cobb angle of the major curve was 18.6° +/-14.1° in the case group and 16.4° +/9.9° in the control (NS). Minor curve measured 15.5° +/12.9° in the case group and 18.4° +/6.9° in the control (NS). Inbrace correction of the major curve (case 52.6%; control 53.7%) and the minor curve (case 45.6%; control 36.8%) was not significantly different in both groups. Total inbrace correction (major and minor curve) was also the same in both groups (case 49.3%; control 47.9%).