For reconstructive surgery, doctors will sometimes remove the fibula (the slender bone in the lower leg) to use the bone. Apparently, this bone isn't really needed as the Tibia can do the job alone in the lower leg. Could they remove one of the bones in the lower arm (ulna or radius) in the same way or would this have a detrimental effect and, if so, why? Why does removing the fibula not cause problems?
2007-04-26 09:53:34 · 7 answers · asked by Cpt. Willard 4 in Science & Mathematics ➔ Medicine
The answer to your question is it would be significantly different then the fibula example you gave. The Tibia is the main support stabilizer for the leg, and thus does not need the Fibula to support that function. However, since the arm doesn't have the same body weight support function that the leg has instead it's structure is to support it's mobility. The Ulna and Radius increase our range of motion and increase the amounts of different types of motions we can do. Let me explain supination and pronation (palm up, to palm down) are two movements that would not be possible without both the ulna and the radius. Our arm and hand mobility would be extremely limited by either one being remove and thus would be completely different than your leg example.
2007-04-26 10:02:53 · answer #1 · answered by jay k 6 · 4⤊ 0⤋
If the ulna or radius was to be removed then most likely it would be impossible to turn your hand and lower arm. The ulna and radius work together so that it is possible to turn your arm and hand. The fibula does not cause this problem because most of the lower leg is controlled by the tibia.
2007-04-26 11:20:48 · answer #2 · answered by fallbaby80 1 · 0⤊ 0⤋
There is a principle in orthopedics that answers this question: "The radius makes the wrist and the ulna makes the elbow". Since both joints are needed for a viable arm/hand, both bones are needed.
2007-04-26 13:41:05 · answer #3 · answered by Doctor J 7 · 0⤊ 0⤋
by removing the radius they are limiting the total movement of the wrist and if doctors agree to remove the ulna i think that your arm wouldn't be as functional because your arm is basically a crucial part of your natural functions.
2007-04-26 10:16:44 · answer #4 · answered by soccagal17 2 · 1⤊ 0⤋
decreased ROM at the wrist
the hand moves in relation to the wrist in MANY directions in a complex fashion
where the foot primarily moves front and back with limited side motion
2007-04-26 19:03:55 · answer #5 · answered by Anonymous · 0⤊ 0⤋
I was about to answer this question when i read the answer from " Jay K " I dont think you need any more advice from anyone else.
2007-04-26 10:30:55 · answer #6 · answered by probemeg 3 · 0⤊ 0⤋
I wouldn't think that would be a wise idea. They should just use prosthetic bones/steel rods.
2007-04-26 09:57:39 · answer #7 · answered by countess 5 · 0⤊ 1⤋