Journal
JOURNAL OF ULTRASOUND IN MEDICINE
Volume 40, Issue 6, Pages 1251-1257Publisher
WILEY
DOI: 10.1002/jum.15491
Keywords
ligament rupture; musculoskeletal imaging; Stener lesion; thumb injury; ulnar collateral ligament; ultrasound
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This study found that ultrasound is as accurate as MRI in identifying thumb UCL tears, and it is also more cost-effective and feasible as an alternative imaging modality.
This prospective case series compared the accuracy of ultrasound (US) to magnetic resonance imaging (MRI) in differentiating complete displaced (CD) thumb ulnar collateral ligament (UCL) tears from nondisplaced injuries in 10 patients with suspected traumatic thumb UCL injuries. Ultrasound identified 100% (2 of 2) of MRI-documented CD tears, both of which were further confirmed during surgical repair. Ultrasound identified the absence of CD tears in the remaining 8 patients. Although MRI is the reference standard imaging modality for characterizing thumb UCL injuries, ultrasound should be considered an accurate, cost-effective, and alternative imaging modality to differentiate surgical versus nonsurgical thumb UCL injuries.
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