3D‐printed custom ankle braces for people with Charcot‐Marie‐Tooth disease: A pilot study

Abstract Introduction Charcot‐Marie‐Tooth disease (CMT) is a neurodegenerative condition resulting in footdrop, ankle instability and impaired balance and gait. This study aimed to determine (1) whether 3D‐printed custom ankle braces improve function and balance in people with CMT and (2) whether th...

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Main Authors: Adam Philps, Mike Frecklington, Sarah Stewart
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:Journal of Foot and Ankle Research
Subjects:
Online Access:https://doi.org/10.1002/jfa2.70013
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author Adam Philps
Mike Frecklington
Sarah Stewart
author_facet Adam Philps
Mike Frecklington
Sarah Stewart
author_sort Adam Philps
collection DOAJ
description Abstract Introduction Charcot‐Marie‐Tooth disease (CMT) is a neurodegenerative condition resulting in footdrop, ankle instability and impaired balance and gait. This study aimed to determine (1) whether 3D‐printed custom ankle braces improve function and balance in people with CMT and (2) whether this is an acceptable device for use in this population. Methods A within‐subject comparison pragmatic/pilot study was undertaken. Ten people with CMT (mean [SD] age 48 [14] years, 60% male) were fitted with 3D‐printed ankle braces. Following a 4‐week wear‐in period, walking and balance tests and patient‐reported outcomes were assessed in two experimental conditions: (i) usual shoes and (ii) usual shoes with 3D‐printed custom ankle braces. Differences in outcome measures between experimental conditions were analysed using linear mixed models. Comfort, aesthetics and overall satisfaction of the brace were assessed via 100‐mm visual analogue scale (VAS). Adverse events and tripping/falls associated with the brace during the wear‐in period were also recorded by participants using daily diaries. Results A significant improvement was seen during single‐leg balance with eyes open (p = 0.026, Cohen's d = 0.55) and a significant reduction in foot pain (p = 0.045, Cohen's d = 0.82), with use of the ankle brace. Mean (SD) 100 mm VAS scores were 62.7 mm (17.9) for overall comfort and 73.9 mm (21.2) for overall satisfaction. Subjective data from the daily dairies showed that one participant found the brace too firm around the ankle due to loss of soft tissue mass and two participants found it challenging to don and doff the brace due to loss of hand dexterity. Conclusion This pilot study suggests that a 3D‐printed custom ankle brace may improve balance and reduce foot pain in people with CMT; however, larger‐scale trials are needed to further explore the impact of this brace on function and balance. Further customisation of the brace may also be required to improve acceptability for some people.
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spelling doaj-art-f3ed1dd68f6c4e76833e9216635d59a72024-12-23T08:16:27ZengWileyJournal of Foot and Ankle Research1757-11462024-12-01174n/an/a10.1002/jfa2.700133D‐printed custom ankle braces for people with Charcot‐Marie‐Tooth disease: A pilot studyAdam Philps0Mike Frecklington1Sarah Stewart2Masterton Foot Clinic Masterton New ZealandSchool of Clinical Sciences Faculty of Health and Environmental Sciences Auckland University of Technology Auckland New ZealandSchool of Clinical Sciences Faculty of Health and Environmental Sciences Auckland University of Technology Auckland New ZealandAbstract Introduction Charcot‐Marie‐Tooth disease (CMT) is a neurodegenerative condition resulting in footdrop, ankle instability and impaired balance and gait. This study aimed to determine (1) whether 3D‐printed custom ankle braces improve function and balance in people with CMT and (2) whether this is an acceptable device for use in this population. Methods A within‐subject comparison pragmatic/pilot study was undertaken. Ten people with CMT (mean [SD] age 48 [14] years, 60% male) were fitted with 3D‐printed ankle braces. Following a 4‐week wear‐in period, walking and balance tests and patient‐reported outcomes were assessed in two experimental conditions: (i) usual shoes and (ii) usual shoes with 3D‐printed custom ankle braces. Differences in outcome measures between experimental conditions were analysed using linear mixed models. Comfort, aesthetics and overall satisfaction of the brace were assessed via 100‐mm visual analogue scale (VAS). Adverse events and tripping/falls associated with the brace during the wear‐in period were also recorded by participants using daily diaries. Results A significant improvement was seen during single‐leg balance with eyes open (p = 0.026, Cohen's d = 0.55) and a significant reduction in foot pain (p = 0.045, Cohen's d = 0.82), with use of the ankle brace. Mean (SD) 100 mm VAS scores were 62.7 mm (17.9) for overall comfort and 73.9 mm (21.2) for overall satisfaction. Subjective data from the daily dairies showed that one participant found the brace too firm around the ankle due to loss of soft tissue mass and two participants found it challenging to don and doff the brace due to loss of hand dexterity. Conclusion This pilot study suggests that a 3D‐printed custom ankle brace may improve balance and reduce foot pain in people with CMT; however, larger‐scale trials are needed to further explore the impact of this brace on function and balance. Further customisation of the brace may also be required to improve acceptability for some people.https://doi.org/10.1002/jfa2.70013ankle bracebalanceCharcot‐Marie‐Tooth diseasefoot pain
spellingShingle Adam Philps
Mike Frecklington
Sarah Stewart
3D‐printed custom ankle braces for people with Charcot‐Marie‐Tooth disease: A pilot study
Journal of Foot and Ankle Research
ankle brace
balance
Charcot‐Marie‐Tooth disease
foot pain
title 3D‐printed custom ankle braces for people with Charcot‐Marie‐Tooth disease: A pilot study
title_full 3D‐printed custom ankle braces for people with Charcot‐Marie‐Tooth disease: A pilot study
title_fullStr 3D‐printed custom ankle braces for people with Charcot‐Marie‐Tooth disease: A pilot study
title_full_unstemmed 3D‐printed custom ankle braces for people with Charcot‐Marie‐Tooth disease: A pilot study
title_short 3D‐printed custom ankle braces for people with Charcot‐Marie‐Tooth disease: A pilot study
title_sort 3d printed custom ankle braces for people with charcot marie tooth disease a pilot study
topic ankle brace
balance
Charcot‐Marie‐Tooth disease
foot pain
url https://doi.org/10.1002/jfa2.70013
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