Viewing Study NCT04725461


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Study NCT ID: NCT04725461
Status: COMPLETED
Last Update Posted: 2025-06-17
First Post: 2021-01-15
Is NOT Gene Therapy: True
Has Adverse Events: False

Brief Title: Low Cost Socket for Lower Limb Amputees
Sponsor: Shirley Ryan AbilityLab
Organization:

Study Overview

Official Title: Low Cost Prosthetic Socket for Lower Limb Amputees
Status: COMPLETED
Status Verified Date: 2025-06
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: The purpose of this research is to test an investigational fabrication system for transtibial prostheses. This fabrication method will be tested for comfort and function to determine feasibility of use for amputees in developing countries.

To address the need for high quality and affordable prosthetic technology in developing countries, the investigators have developed a simplified socket fitting protocol using expandable rigid foam. The foam is formed by mixing small amounts of two liquid components, which typically expands to several times its original volume.
Detailed Description: Millions of amputees in low-income nations lack access to prosthetic care. Conventional socket fabrication is complex, and the need for prosthetists is far greater than the throughput of existing clinician training programs. The first step in fitting a prosthetic limb is to fabricate the socket, which fits over the residual limb and acts as the interface between the residual limb and the prosthesis. The socket is the most custom component of the prosthetic system and must be comfortable to wear, easy to clean, and durable enough to withstand years of day-to-day use.

Simple and low-cost methods for socket fabrication and fitting would improve access to prosthetic care and could give many people in need their first opportunity to use a prosthesis. We have developed an easy-to-follow method that allows us to cast the limb in less than 30 minutes and finish the socket in 90 minutes, making it a practical choice for socket fitting in busy clinical settings, and where users are unable to return for multiple fittings. We have submitted a provisional US patent for our socket fabrication method.

We hypothesize that our novel method of fabrication for a low cost prosthesis can produce a device that has appropriate suspension, a comfortable interface, and requires little long term follow-up.

Study Oversight

Has Oversight DMC: False
Is a FDA Regulated Drug?: False
Is a FDA Regulated Device?: False
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: False
Is an FDA AA801 Violation?: