How much actual shortening may occur in long bone fractures due to muscle contraction?
Understand the Problem
The question is asking about the amount of shortening that can occur in long bone fractures as a result of muscle contraction. It presents multiple choice options for the potential extent of this shortening.
Answer
Muscle contractions can cause significant shortening and displacement in long bone fractures, although exact measurements can vary.
In long bone fractures, muscle contraction can lead to significant shortening and displacement of bone fragments, but the exact amount can vary. Powerful contractions can wrench the tendon free or cause displacement, resulting in apparent shortening of the limb.
Answer for screen readers
In long bone fractures, muscle contraction can lead to significant shortening and displacement of bone fragments, but the exact amount can vary. Powerful contractions can wrench the tendon free or cause displacement, resulting in apparent shortening of the limb.
More Information
When a fracture occurs, the muscles around the injured area can contract powerfully, causing bone fragments to shift or overlap, resulting in shortening. The extent of shortening can depend on the force of the muscle contractions, location of the fracture, and whether any treatment or intervention is applied.
Tips
A common mistake is to assume that muscle contraction alone determines the degree of shortening; other factors such as fracture type and extent of displacement are also important.
Sources
- Bone fractures - Better Health Channel - betterhealth.vic.gov.au
- Bone Deformation - an overview | ScienceDirect Topics - sciencedirect.com
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