Matsumoto Takumi, Takeda Ryutaro, Uchio Akihiro, Mizuhara Hiroyasu, Omata Yasunori, Juji Takuo, Tanaka Sakae
Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan; Department of Rheumatology, JCHO Yugawara Hospital, 2-21-6 Chuo, Yugawara, Ashigara-shimo, Kanagawa 259-0396, Japan.
Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
Foot Ankle Surg. 2023 Apr;29(3):280-287. doi: 10.1016/j.fas.2023.02.012. Epub 2023 Feb 28.
The present study aimed to investigate changes in hallux alignment after corrective surgery for adult-acquired flatfoot deformity (AAFD).
The present study retrospectively investigated the changes of hallux alignment in 37 feet (33 patients) which were treated with double or triple arthrodesis of the hindfoot for AAFD between 2015 and 2021 and could be followed up to one year postoperatively.
Hallux valgus (HV) angle significantly decreased by a mean 4.1° among the whole 37 subjects and by a mean 6.6° among the 24 subjects who had a preoperative HV angle of 15° or more. Those who had HV correction (HV angle correction ≥ 5°) demonstrated more near-normal postoperative alignment of the medial longitudinal arch and hindfoot than those without HV correction.
Hindfoot fusion for AAFD could improve preoperative HV deformity to some degree. HV correction was associated with proper realignment of the midfoot and hindfoot.
Level IV; retrospective case series.
本研究旨在调查成人获得性平足畸形（AAFD）矫正手术后拇趾排列的变化。
本研究回顾性调查了2015年至2021年间因AAFD接受后足双关节或三关节融合术治疗且术后可随访一年的37只脚（33例患者）的拇趾排列变化。
在全部37名受试者中，拇外翻（HV）角平均显著减小4.1°，在术前HV角为15°或更大的24名受试者中平均减小6.6°。与未进行HV矫正的患者相比，进行了HV矫正（HV角矫正≥5°）的患者术后内侧纵弓和后足排列更接近正常。
AAFD的后足融合术可在一定程度上改善术前HV畸形。HV矫正与中足和后足的正确重新排列有关。
IV级；回顾性病例系列。
