Department of Podiatry, School of Health, Medical and Applied Sciences, CQUniversity Australia, Building 34, Bruce Highway, North Rockhampton, QLD 4701, Australia.
Department of Physiotherapy, School of Health, Medical and Applied Sciences, CQUniversity Australia, Building 34, Bruce Highway, North Rockhampton, QLD 4701, Australia.
Gait Posture. 2022 Jul;96:257-264. doi: 10.1016/j.gaitpost.2022.06.006. Epub 2022 Jun 11.
Foot orthoses (FOs) are used to manage foot pathologies such as plantar fasciopathy. 3D printed custom-made FOs are increasingly being manufactured. Although these 3D-printed FOs look like traditionally heat-moulded FOs, there are few studies comparing FOs made using these two different manufacturing processes.
How effective are 3D-printed FOs (3D-Print) compared to traditionally-made (Traditional) or no FOs (Control), in changing biomechanical parameters of flat-footed individuals with unilateral plantar fasciopathy?
Thirteen participants with unilateral plantar fasciopathy walked with shoes under three conditions: Control, 3D-print, and Traditional. 2 × 3 repeated measures analysis of variance (ANOVAs) with Bonferroni post-hoc tests were used to compare discrete kinematic and kinetic variables between limbs and conditions. Waveform analyses were also conducted using statistical parametric mapping (SPM).
There was a significant condition main effect for arch height drop (p = 0.01; ηp =0.54). There was 0.87 mm (95% CI [-1.84, -0.20]) less arch height drop in 3D-print compared to Traditional. The SPM analyses revealed condition main effects on ankle moment (p < 0.001) and ankle power (p < 0.001). There were significant differences between control condition and both 3D-print and Traditional conditions. For ankle moment and power, there were no differences between 3D-print and Traditional conditions.
3D-printed FOs are more effective in reducing arch height drop, whist both FOs lowered ankle plantarflexion moment and power compared to no FOs. The results support the use of 3D-printed FOs as being equally effective as traditionally-made FOs in changing lower limb biomechanics for a population of flat-footed individuals with unilateral plantar fasciopathy.
足部矫形器（FOs）用于管理足底筋膜炎等足部病理。越来越多地制造 3D 打印定制 FO。尽管这些 3D 打印 FO 看起来与传统的热成型 FO 相似，但很少有研究比较使用这两种不同制造工艺制造的 FO。
与传统制造（传统）或无 FO（对照）相比，3D 打印 FO（3D 打印）在改变单侧足底筋膜炎扁平足个体的生物力学参数方面效果如何？
13 名单侧足底筋膜炎患者在三种条件下穿着鞋子行走：对照、3D 打印和传统。使用 Bonferroni 事后检验的 2×3 重复测量方差分析（ANOVA）比较四肢和条件之间的离散运动学和动力学变量。还使用统计参数映射（SPM）进行了波形分析。
在足弓高度下降方面存在显著的条件主效应（p=0.01；ηp=0.54）。与传统 FO 相比，3D 打印 FO 的足弓高度下降减少了 0.87 毫米（95%CI[-1.84，-0.20]）。SPM 分析显示，条件对踝关节力矩（p<0.001）和踝关节功率（p<0.001）有主要影响。控制条件与 3D 打印和传统条件之间存在显著差异。对于踝关节力矩和功率，3D 打印和传统条件之间没有差异。
3D 打印 FO 更有效地降低足弓高度下降，同时，与无 FO 相比，两种 FO 都降低了踝关节跖屈力矩和功率。结果支持将 3D 打印 FO 用于改变单侧足底筋膜炎扁平足个体的下肢生物力学，与传统 FO 同样有效。
