Department of Internal Medicine, Rheumatology, Faculty of Medical Sciences, State University of Campinas - Unicamp, Campinas, SP, Brazil.
Department of Internal Medicine, Rheumatology, Faculty of Medical Sciences, State University of Campinas - Unicamp, Campinas, SP, Brazil.
Foot (Edinb). 2022 May;51:101876. doi: 10.1016/j.foot.2021.101876. Epub 2021 Oct 30.
To evaluate the Structural Index Score (SIS) - a clinical foot deformity assessment index developed for RA, and to compare its results with foot function, disability and physical performance tests.
In this cross-sectional study, 104 patients with foot pain were evaluated according to SIS score, subscales (Forefoot SIS and Rearfoot SIS) and items. Results were compared with the Foot Function Index (FFI), the Health Assessment Questionnaire Disability Index (using lower limbs items: LL-HAQ), and physical performance tests: Berg Balance Scale (BBS), the Timed Up and Go test (TUG) and the 5-Time Sit down-to-Stand up Test (SST5).
There was a weak correlation of SIS score with FFI and LL-HAQ. Rearfoot SIS was correlated with FFI, LL-HAQ and worse performance in BBS, TUG and SST5. Regarding Rearfoot SIS items, the ankle ROM was correlated to all studied outcomes, the calcaneus varus/valgus was correlated with FFI (total, pain and disability subscales) and the planus/cavus deformity with FFI-pain, HAQ-DI and LL-HAQ. Forefoot SIS did not correlate with any outcome measures. In relation to Forefoot SIS items, hallux valgus was associated with foot function (FFI-total, pain and disability subscales), the MTPs joints subluxation was correlated with FFI-disability subscale, and the 5th MTP exostosis was associated with FFI-pain.
SIS score was correlated to impaired foot function (FFI) and disability (LL-HAQ). Rearfoot SIS was correlated to worse performance on FFI, LL-HAQ, BBS, TUG and SST5. SIS score index can be a useful tool to evaluate the rheumatoid foot deformities, but a better graduation of foot deformities should add sensitivity to this method.
评估结构指数评分（SIS）——一种专为类风湿关节炎开发的临床足部畸形评估指数，并将其结果与足部功能、残疾和身体表现测试进行比较。
在这项横断面研究中，根据 SIS 评分、亚量表（前足 SIS 和后足 SIS）和项目对 104 例足部疼痛患者进行评估。结果与足部功能指数（FFI）、健康评估问卷残疾指数（使用下肢项目：下肢 HAQ）以及身体表现测试：伯格平衡量表（BBS）、计时起立行走测试（TUG）和 5 次坐下站起测试（SST5）进行比较。
SIS 评分与 FFI 和 LL-HAQ 呈弱相关。后足 SIS 与 FFI、LL-HAQ 以及 BBS、TUG 和 SST5 较差的表现相关。关于后足 SIS 项目，踝关节 ROM 与所有研究结果相关，跟骨内翻/外翻与 FFI（总分、疼痛和残疾亚量表）相关，足弓塌陷/高弓与 FFI 疼痛、HAQ-DI 和 LL-HAQ 相关。前足 SIS 与任何结果测量均不相关。关于前足 SIS 项目，踇外翻与足部功能（FFI 总分、疼痛和残疾亚量表）相关，跖趾关节半脱位与 FFI 残疾亚量表相关，第 5 跖骨头外生骨与 FFI 疼痛相关。
SIS 评分与足部功能受损（FFI）和残疾（LL-HAQ）相关。后足 SIS 与 FFI、LL-HAQ、BBS、TUG 和 SST5 较差的表现相关。SIS 评分指数可以作为评估类风湿性足部畸形的有用工具，但更好地分级足部畸形应提高该方法的敏感性。
