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Comparing Digitally and Traditionally Made Ankle Foot Orthoses

Feasibility RCT Evaluating Digitally and Traditionally Produced Ankle Foot Orthoses for Individuals With Impaired Lower Limb Function

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06828653
Enrollment
50
Registered
2025-02-14
Start date
2025-09-05
Completion date
2027-03-31
Last updated
2025-11-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cerebral Palsy, Flaccid Paresis, Spastic Paresis, Spina Bifida, Spinal Cord Injury, Stroke, Traumatic Peripheral Nerve Injury

Keywords

Ankle foot orthosis, ankle foot orthoses, digital ankle foot orthoses, digital technology, 3D scanning, 3D printing, randomized control trial

Brief summary

The research is being done to compare two methods of creating AFOs: 1. The traditional method, which involves manually creating a mold from a plaster cast of the client's limb. This is time-consuming and labor-intensive; and 2. The newer method uses digital technology, such as 3D scanning and printing, to design and produce the AFOs, potentially making the process faster and less costly. We want to know whether AFOs made using digital technology can provide the same clinical benefits as those made traditionally.

Detailed description

This study is designed to compare two methods of creating ankle-foot orthoses (AFOs), which are devices used to support the lower limbs in people with mobility impairments due to conditions like stroke or cerebral palsy. The traditional method involves manually creating a mold from a plaster cast of the patient's limb, which is time-consuming and labor-intensive. The new method uses digital technology, such as 3D scanning and printing, to design and produce the AFOs, potentially making the process faster and less costly. The purpose of the study is to test whether AFOs made using digital technology can provide the same clinical benefits as those made traditionally, but with greater efficiency and at a lower cost. The research will gather data on patient satisfaction, the functionality of the AFOs, and the costs associated with each method. This will help determine if the digital method can be a viable alternative to traditional AFO production, potentially leading to better patient care and reduced healthcare costs. The study poses the overarching research question: Can digitally produced ankle-foot orthoses (AFOs) achieve similar positive clinical outcomes to traditionally fabricated AFOs while being more efficient and cost-effective? The primary objective of this feasibility study is to inform the design of a larger randomized controlled trial (RCT) that will comprehensively address this question.

Interventions

DEVICEPart A First Wear Period: Traditional AFO(s)

Participants are randomized to wear traditionally produced AFOs during Weeks 1 through 3.

DEVICEPart A First Wear Period: Digital AFO(s)

Participants are randomized to wear digitally produced AFOs during Weeks 1 through 3.

DEVICEPart A Second Wear Period: Traditional AFO(s)

Participants wear traditionally produced AFOs during Weeks 4 through 6.

DEVICEPart A Second Wear Period: Digital AFO(s)

Participants wear digitally produced AFOs during Weeks 4 through 6.

DEVICEPart B Long-term Evaluation Period: Traditional AFO(s)

Participants are randomized to wear traditionally produced AFO(s) during Weeks 7 through 14.

DEVICEPart B Long-term Evaluation Period: Digital AFO(s)

Participants are randomized to wear digitally produced AFO(s) during Weeks 7 through 14.

Sponsors

Holland Bloorview Kids Rehabilitation Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
8 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participants must be aged 8 years or older. * Participants should have either flaccid or spastic paresis resulting from conditions such as cerebral palsy, stroke, spinal cord injury, spina bifida, or traumatic peripheral nerve injury, leading to lower limb mobility impairments. * Participants must require a custom articulating, rigid, or energy storage and return (ESR) AFO to improve physical function for one or both sides (unilateral or bilateral). * Participants must be able to ambulate independently, though the use of gait aids is permitted. * Participants must be capable of completing questionnaires with no more than orienting guidance. * Participants must meet the requirements to have their AFO funded by the Assistive Devices Program (ADP).

Exclusion criteria

* Clients for whom the primary goal of the AFO includes wound management. * Those whose AFO is not worn for ambulation. * Clients with insensate feet or a history of ulcerations. * First-time AFO users.

Design outcomes

Primary

MeasureTime frameDescription
Quebec User Evaluation of Satisfaction with Assistive Technology (QUEST)From the shape capture visit until the end of the study at week 14Evaluates patient satisfaction related to assistive technology and services rendered. This questionnaire is commonly used in assessing performance of AFOs and other orthotic devices.

Secondary

MeasureTime frameDescription
Orthotics Prosthetics User's Survey (OPUS)From Week 1 until Week 6 of the studyAssesses function, satisfaction, and quality of life of individuals using orthotic or prosthetic devices. Its Lower Extremity Functional Status component will be used since it pertains specifically to the individual's functional abilities and limitations.
10-metre Walk TestFrom the shape capture visit until the end of the study at Week 14Timed walk test
Timed Up and Go (TUG)From the shape capture visit until the end of the study at Week 14
Orthotic Patient-Reported Outcomes - Mobility (OPRO-M)From Week 1 until Week 6 of the studyDesigned and validated to assess orthotic users' ability to perform activities related to movement, locomotion, and/or postural transitions.
AFO ChallengeFrom the shape capture visit until the end of the study at Week 14A new six-item measure that was created by the Holland Bloorview team for this study to capture any functionally important differences in balance linked with AFO type across a spectrum of client abilities.
Orthotist Satisfaction QuestionnaireFrom the shape capture visit until the end of the crossover period at Week 6Evaluate orthotists' satisfaction with the AFO fabrication and fitting process.
Goal Attainment Scale (GAS)From the shape capture appointment until the participant receives their devices at Week 1Creating biomechanical (alignment/dynamic) goals that AFOs are designed to treat. Will be applied to both types of AFOs. Goal achievement rating will be based on a modification of the GAS 5-level rating system (levels -2 to 0 only) after AFO fitting is complete

Countries

Canada

Contacts

Primary ContactCalvin Ngan, PhD
cngan@hollandbloorview.ca416-425-6220
Backup ContactGloria Lee, MSc
glee@hollandbloorview.ca416-425-6220

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026