Department of Nursing and Podiatry, Faculty of Health Sciences, University of Malaga, 29016 Malaga, Spain.
KU Leuven, Musculoskeletal Rehabilitation Research Group, Department of Rehabilitation Sciences, Campus Brugge, Spoorwegstraat 12, 8200 Bruges, Belgium.
Sensors (Basel). 2024 Oct 4;24(19):6430. doi: 10.3390/s24196430.
The first metatarsophalangeal joint (MTPJ) and the first ray are crucial in walking, particularly during propulsion. Limitation in this joint's sagittal plane motion, known as hallux limitus, can cause compensatory movements in other joints. Some studies assessed the impact of various foot orthoses designs on the foot biomechanics; however, a comprehensive understanding is lacking. This study compared the effects of two custom-made foot orthoses (CFOs) on the foot joint kinematics and kinetics in patients with structural hallux limitus (SHL). In this quasi-experimental study, 24 patients with hallux limitus were assessed in three conditions: (i) barefoot, (ii) shod with a cut-out custom foot orthosis (cut-out CFO), and (iii) shod with an anterior forefoot-stabilized element custom foot orthosis (AFSE CFO), fitted into a minimalist neoprene shoe. Multi-segment foot kinematics and kinetics were assessed during the stance phase of the gait. A decrease in ankle and midfoot inversion, as well as in ankle plantarflexion, was found in both orthotic conditions. Regarding the first MTPJ, a greater dorsiflexion was observed with the patient being barefoot compared to both of the conditions under study. From the current finding, it should be concluded that neither of the custom foot orthoses produced the predefined functional effects.
第一跖趾关节（MTPJ）和第一跖骨在行走中至关重要，尤其是在推进阶段。该关节矢状面运动的受限，即拇趾僵硬，可导致其他关节的代偿运动。一些研究评估了各种足矫形器设计对足部生物力学的影响；然而，目前对此仍缺乏全面的了解。本研究比较了两种定制足矫形器（CFO）对结构性拇趾僵硬（SHL）患者足部关节运动学和动力学的影响。在这项准实验研究中，24 名拇趾僵硬患者在三种情况下进行了评估：（i）赤脚，（ii）穿着切迹定制足矫形器（切迹 CFO），（iii）穿着前足稳定元件定制足矫形器（AFSE CFO），并将其安装在极简主义氯丁橡胶鞋中。在步态的站立阶段评估了多节段足部运动学和动力学。在两种矫形条件下，均观察到踝关节和中足部内翻以及踝关节跖屈减少。就第一跖趾关节而言，与研究中的两种情况相比，患者赤脚时的背屈更大。根据目前的发现，应该得出的结论是，这两种定制足矫形器都没有产生预定的功能效果。
