Comparative Effectiveness of Microprocessor Controlled and Carbon Fiber Prosthetic Feet in Transtibial Amputees

NCT ID: NCT02864693

Last Updated: 2018-07-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-06-30

Study Completion Date

2018-04-30

Brief Summary

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The purpose of this research is to evaluate benefits of a microprocessor controlled prosthetic ankle-foot device compared to a non-microprocessor controlled or passive carbon fiber prosthetic ankle-foot device.

Detailed Description

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Recent advancements in microprocessor controlled prosthetic ankle-foot systems have allowed additional functionality for the lower limb amputee, but research into the effectiveness of microprocessor controlled ankle-foot systems has been limited.

In this research study, differences in perceived mobility, functional capabilities and gait parameters between energy storing and returning and microprocessor controlled ankle-foot mechanisms will be identified where they exist. Also a comparison of the initial function with a new system compared to the function after a four week accommodation period will provide insight into the time it takes for the prosthesis user to experience a benefit from a microprocessor ankle-foot.

Conditions

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Amputation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Configuration A (Kinnex)

Group Type ACTIVE_COMPARATOR

Kinnex

Intervention Type DEVICE

The Kinnex is a microprocessor controlled hydraulic ankle foot device (Freedom Innovations, Irvine, CA).

Configuration B (Pacifica LP)

Group Type ACTIVE_COMPARATOR

Pacifica LP

Intervention Type DEVICE

The Pacifica LP is a carbon-fiber ankle foot device (Freedom Innovations, Irvine, CA)

Interventions

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Kinnex

The Kinnex is a microprocessor controlled hydraulic ankle foot device (Freedom Innovations, Irvine, CA).

Intervention Type DEVICE

Pacifica LP

The Pacifica LP is a carbon-fiber ankle foot device (Freedom Innovations, Irvine, CA)

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Unilateral transtibial amputation
* Age 18-99 years old
* Body weight below 275 lbs
* Non-pregnant
* English speaking
* Current user of prosthesis for at least one year
* Wear time 8 hrs/day or more
* MFCL ≥ K-3
* Well-fitting and functioning prosthesis
* No use of ambulatory aide
* Able to tolerate testing protocol
* Able to walk on slopes
* Must, in the opinion of the investigator, be willing and able to complete all aspects of the study, adhere to the study visit schedule and comply with the assessments

Exclusion Criteria

* Amputation level other than unilateral transtibial
* Age \<18 or \>99 years old
* Body weight above 275 lbs
* Pregnant
* Non-English speaking
* Not current user of prosthesis
* Less than one year use of prosthesis
* Wear time less than 8 hr/day
* MFCL \<K3
* Poor fitting and functioning prosthesis
* Indicating that the socket fit is painful, or unacceptable
* Use of ambulatory aide
* Unable to tolerate testing protocol
* Unable to walk on slopes
* Presence or history of any condition that, in the view of the investigator, places the participant at high risk of poor treatment compliance or of not completing the study
* Any neurologic impairments known to cause gait and/or balance dysfunction
Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Ability Prosthetics and Orthotics, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Brian Kaluf BSE, CP

Clinical Outcome and Research Director

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Ability Prosthetics and Orthotics, Inc. - Hagerstown, MD

Hagerstown, Maryland, United States

Site Status

Ability Prosthetics and Orthotics, Inc. - Charlotte, NC

Charlotte, North Carolina, United States

Site Status

Ability Prosthetics and Orthotics, Inc. - York, PA

York, Pennsylvania, United States

Site Status

Countries

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United States

Other Identifiers

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FI-001

Identifier Type: -

Identifier Source: org_study_id

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