Prosthetic Socket Fit Testing System

Sponsor
University of Washington
Study ID
NCT07491614
Status
Not Yet Recruiting

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Conditions

  • Amputation

Eligibility Criteria

Sex
ALL
Age
18 Years - 70 Years
Healthy Volunteers
Not accepted

Interventions

  • Prosthetic socket fit testing system — DEVICE
    Prosthetic socket fit testing system to assess socket-limb coupling using movement error and duration.

Study Details

Ensuring a well fitting prosthetic socket is a major challenge in the care of people with amputation. Poor fit causes pain, skin issues, reduced mobility, and lower satisfaction, affecting daily activity and quality of life. Current prosthetic socket fit assessment relies on prosthesis user feedback, prosthetist experience or intrusive equipment. The investigators have developed a non-invasive prototype socket fit testing system that attaches externally to the end of any prosthetic socket and uses two air cylinders to apply resistance and track motion. During testing, socket motion is mapped to a cursor on a screen. Participants perform a test where they move their leg and socket to randomly presented targets. Movement duration and accuracy provide measures of how well the socket and leg move together. This pilot study will assess feasibility and validity of the socket fit testing system performance for above-the-knee prosthesis users.

Key Dates

First listed
Mar 24, 2026
Start date
Apr 1, 2026
Status verified
Mar 2026
Primary completion
Feb 28, 2027
Completion
Feb 28, 2027

Study Design

Enrollment
18 participants (estimated)
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER

Arms

  • Other: Individuals with transfemoral amputation
    Prosthetic socket fit testing system

Primary Outcome Measure

Repeatability [ Time Frame: 1 week ]

Central Contacts

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