Comparison of Semicustom and Custom UCBL on Lower-Limb Kinematics in Flexible Flatfoot

ABSTRACT Introduction Orthotic devices can be successfully used to treat lower-limb injuries. However, their high cost is a major obstacle. Some orthotic companies have offered the semicustom alternatives at reasonable prices. The purpose of this study was to examine whether semicustom UCBL orthoses can provide similar rearfoot control as custom UCBL orthoses in individuals with flexible flatfoot. Material and Methods Eighteen subjects walked through the motion analysis laboratory under three conditions: no orthosis, custom UCBL orthosis, and semicustom UCBL orthosis. The rearfoot kinematics were assessed for each device. Results Both devices effectively reduced eversion excursion. Compared with the no orthotic condition, the custom and semicustom UCBL orthoses significantly decreased eversion excursion (P < .05), whereas peak eversion angle and velocity were not affected by any type of orthoses (P > .05). Conclusion Regarding the ability of semicustom UCBL orthoses to control rearfoot motion, they can be considered as a feasible alternative to custom UCBL orthoses for individuals with flexible flatfoot. Clinical Relevance This study provides evidence that semicustom UCBL orthoses are as effective as custom UCBL orthoses in controlling the rearfoot motion in flexible flatfoot. Therefore, owing to less fabrication time and lower price, semicustom UCBL orthoses are reasonable alternatives to custom UCBL orthoses.