Three-dimensional angular kinematics of the paretic lower limb according to different orthotic angles of an ankle-foot-orthosis in stroke patients

Physiotherapy ◽  
2015 ◽  
Vol 101 ◽  
pp. e750-e751
Author(s):  
K. Kim ◽  
H.Y. Lee ◽  
J.H. Lee
Keyword(s):  
Lower Limb ◽  
Three Dimensional ◽  
Stroke Patients ◽  
Ankle Foot Orthosis ◽  
Foot Orthosis

Manuscript title: The effect of three dimensional printing hinged ankle foot orthosis in chronic stroke patients

2021 ◽  
Author(s):  
Jimmy Chun-Ming Fu ◽  
Cyuan-Fong Li ◽  
Yu-Hsuan Hsiao ◽  
Feng-Zu Sheen ◽  
Yi-Jen Chen ◽  
...  
Keyword(s):  
Plantar Pressure ◽  
Three Dimensional ◽  
Chronic Stroke ◽  
Stroke Patients ◽  
Three Dimensional Printing ◽  
Ankle Foot Orthosis ◽  
Asymmetry Analysis ◽  
Gait Asymmetry ◽  
Dimensional Printing ◽  
Foot Orthosis

Abstract BackgroundThree-dimensional printing (3DP) is a promising technique utilized in orthosis fabrication, including ankle foot orthosis for stroke patients. However, the effects on ankle biomechanics remains unclear. ObjectivesTo compare the plantar pressure distribution and patient’s subjective experience in chronic stroke patients during 3DP hinged ankle foot orthosis (3DP-HAFO) and anterior ankle foot orthosis (A-AFO) walking MethodsTen patients with first-ever unilateral stroke were enrolled in this study. All patients performed 10-meter walk test in 3 different conditions, including 3DP-HAFO walking, A-AFO walking, and bare foot walking. The plantar pressure parameters including contact area, maximum force, and peak pressure were collected using Pedar X insole system. Gait asymmetry analysis of the plantar pressure parameters was conducted. Quebec User Evaluation of Satisfaction with Assistive Technology (QUEST) was used for patient’s satisfaction.Results3DP-HAFO walking revealed significant increase in medial midfoot peak pressure compared to bare foot walking. Gait asymmetry analysis illustrated more even medial midfoot contact area during 3DP-HAFO walking compared to bare foot walking while A-AFO walking did not. In QUEST survey, 3DP-HAFO outweighs A-AFO in fitting and durableness. Conclusions3DP-HAFO may improve ankle instability and gait asymmetry in chronic stroke patients.

Immediate-term effects of use of an ankle–foot orthosis with an oil damper on the gait of stroke patients when walking without the device

2014 ◽  
Vol 39 (2) ◽  
pp. 140-149 ◽  
Author(s):  
Sumiko Yamamoto ◽  
Setsuro Ibayashi ◽  
Masako Fuchi ◽  
Tadashi Yasui
Keyword(s):  
Ankle Joint ◽  
Three Dimensional ◽  
Chronic Phase ◽  
Therapeutic Effects ◽  
Stroke Patients ◽  
Joint Power ◽  
Ankle Foot Orthosis ◽  
Natural Movement ◽  
Analysis System ◽  
Foot Orthosis

Background:An ankle–foot orthosis using an oil damper is designed to enable natural movement of the ankle joint. Wearing an ankle–foot orthosis using an oil damper has been demonstrated to assist the first rocker in stroke patients, but its effect on their gait when not wearing it is unclear.Objectives:To determine the effect of use of ankle–foot orthosis using an oil damper on the gait of stroke patients with hemiparesis when not wearing the ankle–foot orthosis.Study design:Crossover study.Methods:The gait of eight stroke patients in the chronic phase when not wearing an ankle–foot orthosis was measured, using a three-dimensional motion analysis system, before using the ankle–foot orthosis using an oil damper and then without and with using the ankle–foot orthosis using an oil damper after 3 weeks of use. Differences in gait were compared between the three measurement conditions.Results:Use of ankle–foot orthosis using an oil damper significantly decreased preswing time and significantly increased the positive ankle joint power in stance when not wearing the ankle–foot orthosis using an oil damper.Conclusions:These changes indicate the promising therapeutic effects of ankle–foot orthosis using an oil damper use and suggest the ankle–foot orthosis using an oil damper’s potential as a therapeutic device.Clinical relevanceAfter 3 weeks of use of an ankle–foot orthosis using an oil damper, which assists the first rocker, the gait of stroke patients in the chronic phase when not wearing the ankle–foot orthosis using an oil damper was improved. Preswing time was significantly decreased and positive ankle joint power was significantly increased. The ankle–foot orthosis using an oil damper, which assists the first rocker function with natural movement of the ankle joint during gait, has the potential to improve the gait of stroke patients after immediate-term use.

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