The Length Measurement is taken from the apex of the knee unit, all the way down to the top of the footshell. Using this as a starting point, remove half an inch to an inch to ensure that there will be a gap between the bottom of the cover & the top of the footshell. Typically, if the patient’s ankle is more dynamic, you will want to remove the full inch, whereas less mobile ankles will be fine with a half inch gap. The gap gives the prosthetic foot room to move without impacting range of motion. If the cover is too long, constant impact from the foot can crack the cover.
Keep in mind that the length measurement you provide will be the length that is manufactured, so please remove the gap before recording it in your order.