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1407 E. Michigan Ave., Jackson 517-784-1142 770 Riverside Ave., Suite 101, Adrian 517-263-3310
CHAPTER XXII - Forearm Amputations
When an amputation has been performed at any point between the elbow and wrist, the stump that remains is called a forearm, or radial stump. Cuts R 1 to R 6 represent forearm stumps of a variety of lengths and conditions. The most suitable artificial arm for an amputation of any of the above is illustrated in Cut R 7. The socket is of wood, leather, or metal, as may be selected, shaped interiorly to receive the stump in the most accommodating way. The outside is given the contours of the natural arm as closely as conditions will admit, it is then covered with rawhide and enameled a natural tint.

LEATHER ELBOW JOINTS. - The arm being intended for a long radial stump, the connection with the upper arm piece (incasing the muscle part) is of flexible leather, so as to permit a great range of motion; being adjustable, it can be tightened or loosened, as required; it is absolutely noiseless and very strong; being flexible, it admits of rotation of the forearm. The hand is of rubber, with ductile fingers, as heretofore described. The connection at the wrist is by the spindle or the mortise and tenon method, or the hand can be permanently attached.

The part incasing the arm above the elbow is made of leather, with suitable straps for regulating pressure. Shoulder straps and suspenders are attached to the upper part of this section.

Arms of this construction are thoroughly available for stumps below the elbow five or more inches in length.

It is sometimes desirable in long radial stumps to secure the arms by a narrow strap above the elbow instead of by the long leather muscle part. Cut R 8 represents an arm of this character. This method of attachment is adequate when the artificial arm is not used for carrying heavy articles or in performing laborious work.

STEEL ELBOW JOINTS. - Radial stumps that are shorter than five inches, as shown in Cuts R 9 to R 12, require a firmer method of securing the stump socket to the upper-arm part than the leather joint above described. Cut R 13 represents an artificial arm constructed practically the same as R 7, differing in the elbow joint. Steel hinge joints are used instead of leather. While there is less freedom in the elbow movement, the steel joints place the arm under firmer control of the stump.

SHORT STUMPS. - This arm is, as a rule, made with hand permanently attached, in order to minimize weight. When an amputation below the elbow leaves a stump so short that when flexed the projection beyond the line of the upper arm is insufficient to control the movements of the elbow, it must be treated the same as an amputation in the elbow joint, as described in the following chapter.

ARMS WITHOUT HANDS. - Peg arms for radial stumps are of several kinds, made of wood, leather, or aluminum; they are practically artificial arms without hands. Cut R 14 represents a peg arm without long muscle part or suspenders. Cut R 15 shows a peg arm with long muscle part and suspenders; both the above peg arms are constructed in the same manner as those heretofore described, the absence of the hand is the only difference. Farming, shop, and other implements can be devised for specific purposes and held in the ends of the forearms.

SUSPENDERS. - Cut R 16 represents a suspender suitable for an arm for a radial amputation. Suspenders must be renewed occasionally, according to the demands that are made upon them by the wearer. If the arm is used by a laboring person and he perspires very freely, a new suspender will be required more frequently than if less destructive conditions prevail. The suspender can be procured independent of other parts. It consists of a plate of leather shaped to rest on top of the shoulder and fit close to the neck. A webbing strap passes around the body under the opposite arm and buckles to the suspender in front.

Comment from follow-up survey
I would very much recommend any one to you.