Final answer:
Signs of vascular compromise in a replanted digit include changes in color and temperature, delayed capillary refill, increased pain, and bleeding or hematoma. Monitoring for these signs is critical for the survival of the replanted tissue.
Step-by-step explanation:
The question pertains to the identification of signs of vascular compromise in a replanted digit, which is crucial for ensuring the viability of the replanted tissue. Proper blood flow is essential, with the vascular system including the anastomosis of the radial and ulnar arteries supplying blood to the hand and digital arteries. Additionally, digital veins are responsible for draining the digits and feeding into the palmar and dorsal venous arches.
Vascular compromise may present itself through various signs such as a change in the color of the digit (pallor or cyanosis), a change in temperature (the digit becoming cold to touch), delayed capillary refill in the digit, increased pain, and possible bleeding or hematoma at the replant site.
If vascular compromise is not addressed promptly, it can lead to serious complications such as hypopigmented skin, skin lesions, and nodules, as well as the loss of peripheral nerve function, and ultimately the loss of fingers, toes, and other extremities. It is essential to monitor a replanted digit regularly for these signs to ensure immediate medical intervention if required.