Prosthetic co-pays kill as they are so high at 20% usually, and what you are paying is usually more than even the cost of the parts with just a 20% co-pay !!!
It is time to end this practice and let amputees be able to buy items direct, save money; and do their own repairs and builds of their prosthetics if they want to, and the ADA act says so even. Read more at adalawsuitrights dot com (put it together yourself and go there)
You see, the FDA regulates prosthetic devices through the Food Drug and Cosmetics Act. There are two types of prosthetics devices as far as the FDA is concerned. Internal and External. The Internal - that is surgically implanted - devices; (like breasts and knee and hip joints) are tightly regulated as to manufacture and distribution.
The external devices are largely exempt; but for minor reporting requirements.
External leg and arm prosthetic devices and parts are thus in the same class as crutches, canes and wheelchairs - that is they are considered over the counter items.
BUT . . . the prosthetics industry wants to act to regulate them like they are INTERNAL devices keeping them away from the amputee directly and requiring a prescription be issued before then only they can build one - but the prescription is actually only needed for INSURANCE to pay for what is built to allegedly a Doctor's order - NOT because Federal law requires it.
The real advances are made - and always will be made - by people like Mr. Lesek (on this site) who take the time to build a better prosthetic - because they wear it !!!
Read more above and get involved. It could save you big bucks.