Bones are quite frequently broken or bruised in sport or accidents. It can be quite traumatic dealing with these injuries, and even worse for some people who sustain them. When you are faced with an accident site, you should make sure the person is breathing, then stop any bleeding, and only then attend to fractured bones. Skull or spinal injuries must not be touched and the person must not be moved at all until emergency services arrive.
There are various Homeopathic remedies which can be used.
For a panicked patient: Aconite.
For shock, pain and bleeding: Arnica.
To prevent infection: Calendula.
For severe bone pains, then or at any later time: Eupat per.
Nerve damage and severe pain: Hypericum.
Damage to bone surface: Ruta.
Damage to tendons, ligaments and periosteum: Ruta.
Bone splinters left in the limb: Silicea will assist in their natural ejection from the body.
To speed healing: Symphytum (Knitbone in older terms).