Each design has advantages and disadvantages. The endoskeletal systems offer the most life-like appearance and "feel", but require more care to maintain. The crustacean design is suitable for heavy duty. Most endoskeletal parts are designed for moderate or light duty, but heavy duty systems are available.
Another advantage of some of the endoskeletal systems is that knee units of greater complexity can be introduced as the amputee becomes more proficient or his functional needs change.
The electronic version of this manual is presented by Dankmeyer, Inc., with the permission of the authors. This manual may not be redistributed in any form. In order to obtain printed copies of the manual for personal use or distribution, please go to the ordering information page.