ADAPTATION OF THE FRAILTY INDEX FOR BRAZILIAN PORTUGUESE IN ADULT SPINE DEFORMITY SURGERY

ABSTRACT Objectives To adapt the adult spinal deformity frailty index (ASD-FI), which was presented as an instrument for stratification of risk of surgical complications, for application in the Brazilian population. Methods This is a consensus-building study, following the Delphi method, in which a team of six Brazilian spine surgery specialists worked alongside the International Spine Study Group (ISSG), the group responsible for preparing the original version of the ASD-FI, in order to adapt the index for the Brazilian population. The variables to be included in the new version, as well as the translation of the terminology into Portuguese, were evaluated and a consensus was considered to have been reached when all (100%) of the Brazilian experts were in agreement. Results A version of the ASD-FI was created, composed of 42 variables, with the inclusion of two new variables that were not included in the original version. The new version was then back translated into English and approved by the ISSG members, resulting in the adapted version of the ASD-FI for the Brazilian population. Conclusion This study presents an adapted version of the adult spinal deformity frailty index for the Brazilian population, for the purpose of risk stratification in the surgical treatment of these complex deformities. Level of evidence II; Study of adaptation of a valid score.

摘要
目的：对成人脊柱畸形虚弱指数（adult spinal deformity frailty index, ASD-FI）进行本土化调适——该指数原作为手术并发症风险分层工具，以适配巴西人群的临床应用需求。
方法：本研究为采用德尔菲法（Delphi method）开展的专家共识构建研究，由6名巴西脊柱外科专家团队与负责研发原版成人脊柱畸形虚弱指数的国际脊柱研究小组（International Spine Study Group, ISSG）合作，完成该指数的巴西人群本土化适配工作。研究对新版指数拟纳入的变量及术语的葡萄牙语译法进行评估，当所有（100%）巴西专家达成一致意见时，即视为形成有效共识。
结果：本研究最终构建了包含42个变量的成人脊柱畸形虚弱指数适配版，其中新增了2项原版指数未纳入的变量。随后将该新版指数回译为英文，并经国际脊柱研究小组（ISSG）成员审核通过，最终形成适配巴西人群的成人脊柱畸形虚弱指数本土化版本。
结论：本研究成功研发了适配巴西人群的成人脊柱畸形虚弱指数本土化版本，可用于此类复杂脊柱畸形手术治疗中的风险分层。证据等级：Ⅱ级；有效评分本土化研究。