title: Cross-cultural adaptation of the Korean version of the Boston carpal tunnel questionnaire: its clinical evaluation in patients with carpal tunnel syndrome following local corticosteroid injection.
abstract: The aim of this study was to assess and validate the Korean version of the Boston Carpal Tunnel Questionnaire (K-BCTQ) in patients with carpal tunnel syndrome (CTS). After translation and cultural adaptation of the BCTQ to a Korean version, the K-BCTQ was administered to 54 patients with CTS; it was administered again after 2 weeks to assess reliability. Additionally, we administered K-DASH and EQ-5D to assess construct-validity. In a prospective study of responsiveness to clinical change, 29 of 54 patients were treated by ultrasonography-guided local corticosteroid injection therapy. The internal consistency of the K-BCTQ was high (Cronbach's alpha: 0.915) and the intra-class correlation coefficients were 0.931 for the symptom severity scale (P<0.001) and 0.844 for the functional severity scale (P<0.001). The construct-validity between the symptom severity scale and the K-DASH, and between the functional severity scale and the K-DASH were significantly correlated (both P<0.001). Clinical improvement was noted in 29 patients with injection therapy. The effect size of symptom severity was 0.67, and that of functional severity was 0.58. In conclusion, the K-BCTQ shows good reliability, construct-validity, and acceptable responsiveness after local corticosteroid injection therapy (Clinical trial number, KCT0000050).
authors.affiliation: Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School & Hospital, Gwangju, Korea.
authors.forename: Dong-Jin
authors.initials: DJ
authors.lastname: Park
authors.forename: Ji-Hyoun
authors.initials: JH
authors.lastname: Kang
authors.forename: Jeong-Won
authors.initials: JW
authors.lastname: Lee
authors.forename: Kyung-Eun
authors.initials: KE
authors.lastname: Lee
authors.forename: Lihui
authors.initials: L
authors.lastname: Wen
authors.forename: Tae-Jong
authors.initials: TJ
authors.lastname: Kim
authors.forename: Yong-Wook
authors.initials: YW
authors.lastname: Park
authors.forename: Tai-Seung
authors.initials: TS
authors.lastname: Nam
authors.forename: Myung-Sun
authors.initials: MS
authors.lastname: Kim
authors.forename: Shin-Seok
authors.initials: SS
authors.lastname: Lee
mesh_terms: D000305:Adrenal Cortex Hormones / Q000008:administration & dosage*; D002349:Carpal Tunnel Syndrome / Q000188:drug therapy*; D004185:Disability Evaluation; D006801:Humans; D007267:Injections; D017063:Outcome Assessment, Health Care; D011446:Prospective Studies; D056910:Republic of Korea; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D014222:Triamcinolone Acetonide / Q000008:administration & dosage*; D014463:Ultrasonography
chemical_list: D000305:Adrenal Cortex Hormones; D014222:Triamcinolone Acetonide
keywords: Carpal Tunnel Syndrome; Questionnaires; Validation Studies