A patient broke his arm in a sports accident and required the application of a cast. Shortly following application, the patient complained of an inability to straighten his fingers and was subsequently diagnosed with Volkmann contracture
What pathophysiologic process caused this complication?
A) Obstructed arterial blood flow to the forearm and hand
B) Simultaneous pressure on the ulnar and radial nerves
C) Irritation of Merkel cells in the patient's skin surfaces
D) Uncontrolled muscle spasms in the patient's forearm
Ans: A
Feedback:
Volkmann contracture occurs when arterial blood flow is restricted to the forearm and hand and results in contractures of the fingers and wrist. It does not result from nerve pressure, skin irritation, or spasms.
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