The issue
When a person wears a prosthetic limb, the residual limb sits inside a socket that traps warmth. Over a day, heat and sweat can accumulate. The archived Leto Solutions page argued that this affects comfort and independence, and can contribute to skin problems such as irritation, rashes, breakdown and infection.
This is general background and not medical advice. People with concerns about skin health or socket fit should consult their clinician or prosthetist.
Fit and safety
Sweat can alter how a socket sits on the limb. The archive said that this could cause slipping, increase the risk of falls and force some users to remove the prosthesis for long periods. It cited the company’s own research suggesting that many amputees cannot wear the device on a number of days a year because of friction blisters and skin ulcers. At the extreme, the page said, damaged tissue might need surgery.
What the research cited
The page referred to a 2005 study of skin temperature in below-knee sockets in a rehabilitation journal, and to a 2007 article on the thermal conductivity of socket and liner materials in a prosthetics and orthotics journal. The second concluded that common materials move heat away from the limb poorly, leading to higher skin temperature. The page also quoted a figure that most lower-limb amputees report reduced quality of life from heat and moisture. That figure comes from the archive and was not checked here.
Common coping methods
Users often try antiperspirants, powder or absorbent socks. The archive argued these treat the sweat rather than the heat itself, which was the reasoning behind a cooling concept. For more on the wider patient population, read the background page.