Fig. 2From: The role of ultrasonography in diagnosing acute closed volar plate injury of proximal interphalangeal jointType A (avulsion fracture without volar plate rupture). High frequency ultrasonography image of type A volar plate injury of a 21-year-old female in longitudinal plane. The arrow shows the avulsion bony fragment of the middle phalangeal base. PIP: proximal interphalangeal jointBack to article page