What is a common symptom of Volkmann's ischemia?

Volkmann's ischemia is a condition that results from a lack of blood flow to the muscles and tissues in the forearm, typically due to increased pressure or swelling, often following a fracture or compartment syndrome. A hallmark symptom of this condition is the inability to extend the fingers, which occurs because the affected muscles, particularly the flexor muscles, become ischemic and unable to function properly.

In this context, the inability to extend the fingers serves as a critical indicator that the hand may be experiencing complications due to reduced blood supply, leading to muscle and nerve damage. This symptom is significant because it highlights the need for urgent medical evaluation and intervention, as prolonged ischemia can lead to irreversible damage.

The other options do not relate directly to the manifestations of Volkmann's ischemia in the same way. The injury to the outer ankle bone refers to an entirely different anatomical region and injury type. Partial contact of bone surfaces does not relate to ischemic conditions and focuses on joint dysfunction rather than muscle or nerve issues. Temporary constriction of blood vessels, while it can contribute to ischemia, is not specific enough as a symptom of Volkmann's ischemia, as this condition results from more chronic or sustained pressures rather than merely transient constriction