RESUMEN
Spinal bracing is indicated in moderate to severe curves during growth. Brace effectiveness in halting progression of adolescent idiopathic scolisosis has been shown in a Cochrane review and in a randomized controlled trial (RCT). The outcome of brace treatment is dependent on the extent of in-brace correction and compliance. We have reviewed the literature on bracing to determine the types of brace that offer the best in-brace correction. MATERIALS AND METHODS: The literature has been searched for papers on bracing with documented in-brace corrections and long-term results . RESULTS: The in-brace percentage of correction of asymmetric braces is generally higher than that of the symmetric braces. According to the literature found in our search, long-term corrections are possible when starting treatment early, at an immature stage and with asymmetric braces of recent standards. CONCLUSIONS: Bracing today is supported by high quality evidence (Level I). Asymmetric braces have led to better corrections than that described for symmetric braces . An improvement of the average corrective effect has been described due to the latest CAD / CAM development. Long-term corrections are possible when starting brace treatment early, at an immature stage and with asymmetric braces of recent standards.