Which term describes a fracture where the bone penetrates the skin and is exposed to the external environment?
Open fracture
Closed fracture
Impacted fracture
Stress fracture
The Correct Answer is A
An open fracture, also known as a compound fracture, occurs when the bone penetrates the skin and is exposed to the external environment. It carries a higher risk of infection due to the exposure of the bone to external contaminants.
b. Closed fracture: A closed fracture, also known as a simple fracture, does not break the skin, and the bone remains enclosed within the body.
c. Impacted fracture: An impacted fracture occurs when the bone ends are forced into each other, commonly seen in long bones such as the femur. It does not involve the bone penetrating the skin.
d. Stress fracture: A stress fracture is a tiny crack in the bone caused by repetitive stress and overuse. It does not involve the bone penetrating the skin.
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Related Questions
Correct Answer is D
Explanation
Hypertrophic nonunion occurs when there is excessive callus formation at the fracture site, but the bone ends fail to unite. This can lead to persistent pain and limited function.
a. Nonunion: Nonunion occurs when the fractured bone fails to heal and fuse together, but it does not involve excessive callus formation.
b. Malunion: Malunion refers to a fracture that heals in an incorrect position or alignment, and it is not directly related to excessive callus formation.
c. Delayed union: Delayed union refers to a fracture that takes longer than usual to heal, and it is not specifically characterized by excessive callus formation.
Correct Answer is C
Explanation
A spiral fracture occurs due to twisting or rotational forces on the bone, resulting in a twisting break along the bone's length.
a. Greenstick fracture: A greenstick fracture involves the bone bending and partially breaking, usually seen in children. It is not caused by twisting forces.
b. Transverse fracture: A transverse fracture occurs when the bone breaks straight across its long axis, not due to twisting.
d. Comminuted fracture: In a comminuted fracture, the bone breaks into multiple pieces, which is not associated with twisting forces.
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