While we have used rubber walking heels as a base of support in our earlier cases, we now recommend the use of a Syme foot in conjunction with the PRS adjustable prosthetic Syme unit. A properly selected Syme foot aside from providing a wider base of support also decreases vertical displacement of the hip joint during stance phase and resembles dynamically the action of the definitive prosthesis. In order to retain compactness in the prosthetic Syme unit, adjustability is limited and a quick disconnect feature has not been provided. This interface material must be sterilized before application. With the foot attachment bolt in neutral position the concavity of the socket attachment plate provides 10 deg. of dorisflexion or 10 deg. of plantar flexion of the foot, for a total of 20 deg.
Adjustments are independent of each other.
The prosthetic unit including attachment straps weighs less than 200 grams. Type B h. 2 rolls of 4 in. All tools except stainless steel tools have been stripped, polished, and chromed to allow for repeated sterilization when required. Skiving knife g.