Page "Assistive technology" Paragraph 16

Prosthetics are specifically not orthotics, although given certain circumstances a prosthetic might end up performing some or all of the same functionary benefits as an orthotic.

Prostheses are technically the complete finished item.

For instance, a C-Leg knee alone is not a prosthesis, but only a prosthetic part.

The complete prosthesis would consist of the stump attachment system — usually a " socket ", and all the attachment hardware parts all the way down to and including the foot.

Keep this in mind as nomenclature is often interchanged.