Clinical Trials Logo

Clinical Trial Summary

The comfort and fit of the residual limb within a prosthetic socket are of primary concern for many amputees. The residual limb is typically covered by nonbreathable and non-thermally conductive materials that can create a warm and ultimately moist environment. The investigators have developed a silicone liner approach to passively conduct heat from the skin using thermally conductive elastomers. A technology that can provide thermal control while retaining adequate suspension, weight, and other prosthetic characteristics would benefit many prosthesis wearers.


Clinical Trial Description

The comfort and fit of the residual limb within a prosthetic socket are of primary concern for many amputees. The residual limb is typically covered by nonbreathable and non-thermally conductive materials that can create a warm and ultimately moist environment. These layers consist of a prosthetic liner that rolls onto the limb and traps heat and occasional extra prosthetic socks. Studies found increases in socket temperature after the prosthesis was donned. Temperatures were found to remain elevated long after activity cessation and even a rest period of double the duration of the preceding activity period is insufficient to return the limb to its initial temperature. A small amount of activity can cause the socket temperature to elevate and remain at an uncomfortable level for an extended period of time, which can lead to decreased wear times. In summary, an uncomfortable socket/residual limb interface decreases prosthesis use among amputees who want to remain active in their lives. The investigators have developed a silicone liner approach to passively conduct heat from the skin using thermally conductive elastomers. A technology that can provide thermal control while retaining adequate suspension, weight, and other prosthetic characteristics would benefit many prosthesis wearers. This study will focus on investigating the efficacy of this novel moisture and thermal management (experimental) liner. The rationale for this study is to determine how well the new technology can regulate the residual limb temperature and reduce the moisture generation in a home environment where the device would ultimately be utilized. The primary objective of this study is to measure the effects of residual limb moisture and thermal management on quality of life (QoL) and functional outcomes. Reducing temperature increases of the residual limb inside the prosthetic socket would result in less sweating and greater comfort while wearing the prosthesis, and ultimately greater function and better quality of life as measured by standard functional and QoL outcome measures. A prospective design will be implemented for this study. Research participants will be consented by LTI over the phone. Residual limb measurements will be received from the participant to confirm liner sizing. One 'experimental' prototype liner will be created for each participant. Subjects with a similar liner size and profile to the available experimental liners will be targeted. Temperature and step-count sensors will be placed on the participant's prosthesis to log daily measurements. Testing will consist of 2 site visits, with the entire study lasting approximately 5 weeks. Lower limb prosthesis users will be recruited for the study and consented with an approved protocol. Research participants will represent a convenience sample and will reflect the local population of people with lower limb differences who use prosthetic sockets and could benefit from temperature control within the socket. A maximum of 16 subjects will be recruited for this study. This sample size accounts for subject drop out and other losses (such as incomplete log data, etc.) to yield usable data from the target 12 subjects required by the power analysis. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05124873
Study type Interventional
Source Liberating Technologies, Inc.
Contact
Status Completed
Phase N/A
Start date May 12, 2021
Completion date September 27, 2022

See also
  Status Clinical Trial Phase
Recruiting NCT03947450 - Autologous Volar Fibroblast Injection Into the Stump Site of Amputees Phase 2
Completed NCT04924036 - Qbrexza Cloths for Hyperhidrosis of Amputation Sites Phase 2
Recruiting NCT04839497 - Multicenter Trial Evaluating the Safety and Efficacy of Autologous Volar Fibroblast Injection Into the Terminal Limb of Amputees. Phase 2
Recruiting NCT04212299 - Transfemoral Socket Design and Muscle Function N/A
Completed NCT03733054 - Understanding Prosthetic Needs and Outcomes in Women Veterans With Amputation
Completed NCT03651830 - A Test-Drive Strategy for the Prescription of Prosthetic Feet for People With Leg Amputations N/A
Recruiting NCT04725006 - Sensory Responses to Dorsal Root Stimulation N/A
Not yet recruiting NCT06007885 - Examining Capacity Building of Youth With Physical Disabilities to Pursue Participation Following the PREP Intervention. N/A
Not yet recruiting NCT04936789 - Clinical Feasibility of the IMES Transradial Prosthesis N/A
Completed NCT01155024 - Clinical Evaluation of Direct Manufactured Prosthetic Sockets Phase 2
Completed NCT00663663 - Telephone Intervention for Pain Study (TIPS) N/A
Terminated NCT00778856 - Hand Transplantation for the Reconstruction of Below the Elbow Amputations N/A
Recruiting NCT00388752 - Acupuncture for the Treatment of Phantom Limb and Residual Limb Pain After Amputation Phase 1
Active, not recruiting NCT03374319 - Somatotopic Configuration of Distal Residual Limb Tissues in Lower Extremity Amputations N/A
Completed NCT05542901 - Comparison of Joint Position Sense in Diabetic and Traumatic Transtibial Amputees N/A
Completed NCT05161364 - Kinetic Analysis Due to Foot Dysfunction
Recruiting NCT06194838 - Clinical Outcomes With Non-Powered vs. Powered Prosthetic Knees by K2-level Amputees N/A
Completed NCT03570788 - HRQoL Among Patients Amputated Due to Peripheral Arterial Disease
Completed NCT05778799 - Physical Activity and Sports for People With Special Needs
Recruiting NCT04804150 - Daily Socket Comfort in Transtibial Amputee With an Active Vacuum Suspension System N/A