Ring avulsion injuries may appear deceptively normal because of color
from blood trapped in the digit and active range of motion
maintained by the long tendons. In this example, the finger appeared
viable (1), despite a long zone of tissue disruption from the distal
interphalangeal joint (2) to the base of the finger (3,4,5). In fact,
the finger was only attached by the flexor tendons and digital nerves
(5) and was unsalvageable.