Sex-related effect of bracing treatment for adolescent idiopathic scoliosis

English Keywords:Adolescent idiopathic scoliosis  Ｂrace treatment  Ｓex  Progression  Influence factor

English Abstract:

  【Abstract】 Objective：To compare the sex-related efficiency of bracing treatment for adolescent idiopathic scoliosis.Method：Form July 2003 to July 2009，76 AIS patients experiencing bracing treatment were enrolled in this study.All patients were assigned into male group（n=19，group A） and female group（n=57，group B）.Patients in group A averagely aged of 14.0±2.0 years with a initial major curve of 28.8°±5.7°，and those in group B had an average age of 13.0±1.4 years with Cobb angle 29.4°±6.1°.Six patients were treated with Boston brace and 13 with Milwaukee brace in group A，while 17 with Boston brace and 40 with Milwaukee brace in group B respectively.Curve progression was defined as Cobb angle greater than 45° or increment over than 6° compared with before bracing which is indicative for surgery，otherwise was defined as non-progression.Result：The Risser grade，Cobb angle of major curve，distribution of curve pattern and brace type were showed no difference in both groups.The duration of bracing averaged 2.1±0.7 years and 2.5±0.9 years and the treatment compliance averaged 84.4%±7.6% and 87.1%±5.7% for group A and B respectively.Eight patients（42%） in group A were found with curve progression，and six of them（32%） were indicative for surgery. 12 patients（21%） in group B were found with curve progression，and ten of them（18%） were indicative for surgery.Lower growth status，larger Cobb angle and main thoracic curve were noted with higher progression rate in both groups.Conclusion：Bracing treatment is effective to prevent curve progression in most AIS patients，however its efficiency might remain lower for male than for female.