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Journal Of Ultrasonography

research-article | 30-November-2020

Sonography of tendon pathology in the hand and wrist

the pulley system causes pulley injury. A common risk factor for pulley injuries is the “crimp position”, with 90° or more flexion of the PIP joint and slight DIP joint hyperextension. Using high-resolution US probes, a normal annular pulley is identified as a very thin (0.3–0.5 mm) band surrounding the flexor tendons on their volar side (Fig. 19B)(5). Pulley ligaments are best visualized on transverse scanning planes: the normal US appearance of an annular pulley is hyperechoic on the volar side

Andrea B. Rosskopf, Carlo Martinoli, Luca M. Sconfienza, Salvatore Gitto, Mihra S. Taljanovic, Riccardo Picasso, Andrea Klauser

Journal of Ultrasonography, Volume 21 , ISSUE 87, 306–317