Best Practice Case Studies-Case 128 Asset 1 Mallet Finger

Video Transcription

Video Summary

The speaker explains how to use ultrasound to evaluate a mallet finger, focusing on the distal extensor tendon at the DIP joint. She notes the importance of avoiding anisotropy, using a high-frequency linear transducer, and examining both long- and short-axis views. Ultrasound can help detect extensor tendon rupture and possible bony avulsion, sometimes with dynamic imaging and slight finger flexion. While x-ray remains the standard for confirming bony avulsion, ultrasound is highly accurate because the structures are superficial. The main limitation is examiner experience. Ultrasound may also be more sensitive than MRI for small bony fragments.

Meta Tag

Edition 4th Edition

Related Case 4th Edition, Case 128

Topic Hand

Keywords

4th Edition

4th Edition, Case 128

Hand

ultrasound evaluation

mallet finger

distal extensor tendon

DIP joint

bony avulsion