Shinohara Masashi, Yamaguchi Satoshi, Ono Yoshimasa, Kimura Seiji, Kawasaki Yohei, Sugiyama Hiroshi, Akagi Ryuichiro, Sasho Takahisa, Ohtori Seiji
Graduate School of Medical and Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8670, Japan.
Graduate School of Medical and Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8670, Japan; Graduate School of Global and Transdisciplinary Studies, Chiba University, 1-33 Yayoicho, Inage-ku, Chiba-shi, Chiba 263-8522, Japan.
Foot Ankle Surg. 2022 Feb;28(2):240-244. doi: 10.1016/j.fas.2021.03.019. Epub 2021 Mar 26.
The purpose of this study was to clarify the incidence rate and the risk factors for the progression of the hallux valgus deformity.
Patients who had weight-bearing radiographs of the foot taken twice or more, with a ≥2-year interval, were retrospectively analyzed. Progression of the deformity was defined as an increase in the hallux valgus angle of ≥5° during the follow-up. The association of hallux valgus progression with patient characteristics and radiographic measurements at baseline was determined using univariate and multivariate analyses.
Totally, 268 patients (217 women and 51 men; median age, 64 years) were analyzed. An increase in the hallux valgus angle of ≥5° occurred in 44 (17%) patients in a median follow-up of 49 months. Large hallux valgus angle (odds ratio, 1.07) on the dorsoplantar radiograph at baseline were independent risk factors for the progression of the deformity.
Progression of the hallux valgus deformity occurred in one of six patients. Furthermore, large hallux valgus angle was the risk factor for subsequent deformity progression. Patients with large hallux valgus angle should be informed about the possible progression of the deformity.
本研究的目的是明确拇外翻畸形进展的发生率及危险因素。
对足部负重X线片拍摄两次或更多次且间隔≥2年的患者进行回顾性分析。畸形进展定义为随访期间拇外翻角度增加≥5°。采用单因素和多因素分析确定拇外翻进展与患者特征及基线时影像学测量值之间的关联。
共分析了268例患者（217例女性和51例男性；中位年龄64岁）。在中位随访49个月时，44例（17%）患者的拇外翻角度增加≥5°。基线时足背侧位X线片上较大的拇外翻角度（比值比，1.07）是畸形进展的独立危险因素。
六分之一的患者出现拇外翻畸形进展。此外，较大的拇外翻角度是后续畸形进展的危险因素。拇外翻角度较大的患者应被告知畸形可能进展的情况。
