Both types of amputations allow weight bearing on the remaining part of the foot, which means that the person can put weight on the bottom of the foot and is able to walk short distances, stand in the shower, etc. For this reason alone, this type of amputation is advantageous.
Classification of upper-limb amputation is related to the anatomy of an amputated limb. Digit or partial hand prosthesis This type of prosthesis is used when an amputation is at a level below the wrist. Hand prosthesis The I-limb Ultra This type of prosthesis may be used in cases of wrist disarticulation, that is, amputation at the wrist level, including the removal of the radius and ulna to styloid processes.
One example is the I-limb Ultra.
Transradial Prostheses A Transradial prosthesis This type of prosthesis is used for below-elbow transradial amputations. The transradial prosthesis typically includes a terminal devicewrist unit, elbow unit, socket and harness.
Transhumeral Prostheses This type of prosthesis is used for above-elbow transhumeral amputations. Shoulder Disarticulation Prostheses This type of prosthesis is used Transtarsal chopart prothesis an amputation is at the shoulder level.
Lower-Extremity Prostheses The level of lower limb amputation determines the type of prosthesis a person will use. Lower-extremity amputation and disarticulation levels include the following Smith If the ankle stability is compromised, the devices may extend out of the shoe and terminate around the ankle or calf.
The purpose of these is both cosmetic and biomechanical. A partial foot prosthesis such as fillers and spacers may resisting foot deformation over time and improving balance.
These will help the foot function better and improve comfort. Cosmetic aids include silicone toe and partial foot caps. The socket may be padded with a foam liner, or a gel liner may be rolled over the skin of the residual limb.
The bottom of the socket is attached to a prosthetic foot. Below the knee transtibial prosthesis A man with a below the knee transtibial prosthesis While the exact construction of the prosthesis will vary, the general parts of a below the knee transtibial prosthesis are the socket, pylon, and foot.
The socket is molded to the precise shape of the residual limb. The socket is typically made from hard plastic or acrylic resin. Similar to a Symes prostheses, a foam or plastic liner may be placed in the socket or a gel liner may be rolled on the residual limb. The socket is connected to a pylon which is often an aluminum tubewhich is connected to a prosthetic foot.
Some people choose to cover the pylon with a custom shaped foam cover, while others prefer to leave it exposed.
The prosthetic foot could be made from carbon fiber, metal, foam, and wood. In addition to these parts, suspension of the prosthesis is important. Some was to secure the prosthesis to the residual limb include a tight socket brim, suction, a locking pin, and knee cuffs.
Knee disarticulation and above the knee transfemoral prosthesis A transfemoral prosthesis The prosthesis for a knee disarticulation or above the knee transfemoral amputation is made from a socket, pylon, and foot and artificial knee.
The socket, pylon, and foot are similar to those of transtibial prostheses. The knees are monocentric or polycentric depending on how they flew. They have different control mechanisms including hydraulic, pneumatic, and computerized control.
In addition to the knee, other components such as a rotator unit may make activities of daily living easier. Standard ways to suspend the socket to the leg include a tight contoured socket for knee disarticulationbelts, suction, and locking pins.
Hip disarticulation and hemipelvectomy Hip disarticulation an hemipelvectomy prostheses include all the parts of a transfemoral prosthesis socket, knee, pylon, and foot but also includes a hip joint component.
Concluding comments The optimal experience for someone with an amputation is multi-faceted. A multidiciplinary team- including the patient- is best suited to manage care before surgery, after surgery, during rehabilitation, and through a lifetime.
Together they address subjects such as gait assessment, biomechanical analysis, material and technology selection, and activity tolerance. In general, using a prosthesis is easier with better health, a lower amputation level, and a good medical team.
However, despite best efforts, prosthetic care does not completely restore normal walking ability Perry Limitations of this article While this article identifies major types of prostheses, the specific prosthesis used is customized for each patient.
Patient, caregiver, and device factors leads to a specific prosthesis. Device factors include cosmesis, cost, function, safety, and comfort. Finally, caregiver factors include the knowledge, determination, skill, and ability to provide the best prosthesis available for a specific individual.
Orthotics and Prosthetics in Rehabilitation, 2nd ed.
Gait Analysis, Normal and Pathological Function, 2nd ed.A partial foot prosthesis helps distribute the weight-bearing forces comfortably on the remaining foot. Therefore, the higher the level of amputation the higher the . Partial Foot Page Intro Partial amputations of the foot include: toe amputation; mid foot amputation (metatarosphalangeal, transmetatarsal); Lisfranc amputation; and Chopart amputation.
Chapter 42FOOT AND ANKLE AMPUTATIONS: LISFRANC/CHOPART 3 FIG 2• (continued) D. Postoperative photograph shows good dorsiflexion function. E. Chopart amputation can be successful with the transfer of the tibialis anterior into the talar neck.
This patient also had a Marcaine catheter D E placed for postoperative pain control (A).
Transtarsal Below the Knee Chopart Lisfranc. Chopart prosthesis 1 or 3 nerves (sciatic or. A prosthesis is a device which replaces a missing body part or limb, which may be due to trauma or congenital defect, to assist or improve function.
The cause of amputations is quite different between upper-limb and lower-limb amputations.
Cylindrical residual Limb Covered with durable, well-vascularized subcutaneous tissue and skin. Withstand pressure in weight bearing areas, and friction in areas covered by the prosthetic socket.