Say, a collar bone for instance.
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It's stronger only along the line of the original break. A couple of millimeters away, it will be no stronger than it was before. Also, most people experience some bone loss with age so, eventually, even the fused section of the bone will have lost some of the strength it gained when it healed.
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It could crack or bust.
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bolt cutters would do the trick
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It is called a vinculum.
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You could look at these examples.
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There is bone marrow in the center of the bone.  Dogs love to eat that.
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Take it to a jeweler.
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Please use springs, or rubber bands.
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Depends on who it's attached to.
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Try to substitute something in its place.
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you could have a stress fracture
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By all means, see a doctor and get it x-rayed.
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It's something like: the bone was not taken from Adam's head so that Eve would be above him, nor from Adam's foot that he would be above her, but from his side, so she would be close to his heart.
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u can  take rod shaped plastic pipe of different sizes & pingpong balls at sides. cover them with clay to give them shape of a bone, then use  thin elastic rubber ( which are used in rubber band, thin white in color) use many of them  as muscle fibre by attaching them to bone
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Sounds like something that can be fixed.
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Probably some kind of medieval gown.
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Thingds that belong in it.