Vijittrakarnrung Chaiyanun, Mongkolpichayaruk Atipong, Limroongreungrat Weerawat, Chuckpaiwong Bavornrit
College of Sports Science and Technology, Mahidol University, Nakhon Pathom, Thailand.
Orthopaedic Surgery and Rehabilitation department, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Foot Ankle Orthop. 2024 Feb 25;9(1):24730114241231245. doi: 10.1177/24730114241231245. eCollection 2024 Jan.
Symptomatic flexible flatfoot causes alterations in gait, but exactly how this condition affects the intersegmental motion of the foot during the gait cycle remains unclear. Previous studies have examined the kinematics, yielding inconsistent findings. Therefore, the objective of this study was to investigate how flexible flatfoot deformity, defined as Johnson and Strom classification staging II, affects the intersegmental motion of the foot during fast walking based on a comparison with the matched control group.
Eleven participants with symptomatic flexible flatfoot and 11 healthy matched control participants were recruited using a foot screening protocol incorporated through a foot physical examinations and radiographic measurements. All demographic characteristics exhibited comparable profiles between the groups. During controlled walking, kinematic outcomes pertaining to the hallux, hindfoot, forefoot, and tibia were collected using the multisegmental Oxford Foot Model.
All spatiotemporal parameters were comparable between the groups. In comparison to the control group, individuals with symptomatic flexible flatfoot demonstrated increased hallux valgus and plantarflexion, increased forefoot abduction, heightened hindfoot eversion, and internal rotation. Notably, no significant major differences were observed in the tibia motion segment. Further, significant correlations were identified between static foot measurements and the extent of the maximum deviation observed during dynamic kinematic assessments.
Compared with age- and gender-matched controls, participants with symptomatic flexible flatfoot exhibited significant gait pattern deviations. A significant correlation also exists between static foot deformity measurements and dynamic kinematic deviations. Collectively, these findings have implications for developing targeted therapeutic interventions to address flexible flatfoot.
Level III, diagnostic study.
有症状的柔韧性扁平足会导致步态改变，但这种情况在步态周期中究竟如何影响足部的节段间运动仍不清楚。先前的研究已经对运动学进行了检查，但结果并不一致。因此，本研究的目的是基于与匹配的对照组进行比较，调查定义为约翰逊和斯特罗姆分类II期的柔韧性扁平足畸形在快速行走过程中如何影响足部的节段间运动。
通过纳入足部体格检查和影像学测量的足部筛查方案，招募了11名有症状的柔韧性扁平足参与者和11名健康匹配对照组参与者。两组之间所有人口统计学特征均表现出可比的概况。在受控行走过程中，使用多节段牛津足部模型收集与拇趾、后足、前足和胫骨相关的运动学结果。
两组之间所有时空参数均具有可比性。与对照组相比，有症状的柔韧性扁平足个体表现出拇外翻和跖屈增加、前足外展增加、后足外翻增加以及内旋增加。值得注意的是，在胫骨运动节段未观察到明显的主要差异。此外，在静态足部测量与动态运动学评估期间观察到的最大偏差程度之间发现了显著相关性。
与年龄和性别匹配的对照组相比，有症状的柔韧性扁平足参与者表现出明显的步态模式偏差。静态足部畸形测量与动态运动学偏差之间也存在显著相关性。总体而言，这些发现对制定针对性的治疗干预措施以解决柔韧性扁平足具有启示意义。
III级，诊断性研究。
