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Effect of Socket Wall Height With Vacuum Suspension for Above Knee Amputees

NCT01559909 · Status: COMPLETED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 10

Last updated 2014-05-12

No results posted yet for this study

Summary

Individuals with transfemoral (TF) amputation (above the knee amputation) may benefit from a socket that uses vacuum assisted suspension (VAS) to hold the socket onto the amputated limb. VAS may improve stability, weight bearing, comfort, proprioception, limb health, and function. To date, there is no evidence to support whether VAS alters balance, kinematics, and kinetics when walking for TF amputees as compared to conventional socket suspension technology. Further, there is question regarding what the optimal height of the socket should be to maintain stability and function. So long as stability is not sacrificed, it may be advantageous to lower the height of the socket to allow full hip motion and improve sitting comfort. The purpose of this investigation is to assess if the socket height alters the motion of the leg and changes the way one walks when using VAS compared to conventional socket suspension technology. In this study, TF amputees will be fitted with a VAS socket that will be attached to their current prosthesis using similar alignment. Individuals will be assessed while walking on a level floor and during stair negotiation while wearing the prosthesis with the VAS socket at various socket heights as well as their current socket. Additionally, balance and socket standing and sitting comfort will be investigated.

Conditions

  • Amputation

Interventions

DEVICE

Vacuum assisted socket technology (Harmony System, Otto Bock Healthcare)

The brim height of the socket will be systematically reduced

Sponsors & Collaborators

Principal Investigators

  • Eric M Lamberg, EdD, PT · Stony Brook University

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
21 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2012-06-30
Primary Completion
2013-12-31
Completion
2013-12-31

Countries

  • United States

Study Locations

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Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01559909 on ClinicalTrials.gov