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Which complication of fractures is a result of excessive callus formation at the fracture site?

A.

Nonunion

B.

Malunion

C.

Delayed union

D.

Hypertrophic nonunion

Answer and Explanation

The Correct Answer is D

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.
 


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Related Questions

Correct Answer is A

Explanation

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.

Correct Answer is C

Explanation

Cancer is a risk factor for pathological fractures because cancer cells can weaken bones and cause fractures, even with minimal trauma.


a. Hypertension: Hypertension is a condition characterized by high blood pressure and is not directly associated with an increased risk of fractures.
b. Diabetes mellitus: Diabetes mellitus is a metabolic disorder that affects blood sugar levels and does not directly increase the risk of fractures.
d. Asthma: Asthma is a respiratory condition that affects the airways and lungs and is not linked to an increased risk of fractures.

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