1/13/2023 0 Comments Tell if your thumb is jammed![]() 2020 Jan.Įbrahim FS, De Maeseneer M, Jager T, et al. Gamekeepers Thumb (Skiers, Ulnar Collateral Ligament Tear). ![]() Imaging Traumatic Hand and Finger Injuries. However, the results of stress radiographs are often difficult to interpret, and there is always the underlying concern that stress maneuvers may exacerbate the injury. When conventional radiographic images are negative for fractures, stress radiographs are used. The role of a radiologist is vital in providing a rapid and accurate diagnosis in guiding the attending physician. If the injury is over a week old, MR imaging is usually preferred. ![]() The torn UCL is displaced, is folded on itself, and moves proximal to the adductor aponeurosis, producing the appearance of a "yo-yo on a string" on coronal images. Both MRI and US imaging allow direct visualization of these lesions. In Stener lesions, there is significant retraction of the proximal UCL, so that the retracted UCL is seen superficial to the aponeurosis and the UCL is no longer seen in continuity. Plain radiographs fail to provide input into Stener lesions. A Stener lesion occurs when the thumb is forcefully abducted and the distal attachment of the UCL at the metacarpophalangeal joint is traumatically avulsed from its insertion into the base of the proximal phalanx of the thumb.
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