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Thumb ultrasound: Technique and pathologies

View Article: PubMed Central - PubMed

ABSTRACT

Ultrasound is ideally suited for the assessment of complex anatomy and pathologies of the thumb. Focused and dynamic thumb ultrasound can provide a rapid real-time diagnosis and can be used for guided treatment in certain clinical situations. We present a simplified approach to scanning technique for thumb-related pathologies and illustrate a spectrum of common and uncommon pathologies encountered.

No MeSH data available.


Related in: MedlinePlus

Extensor pollicis longus tear (A-D). Schematic diagram (A) and short axis (B) ultrasound at the level of the wrist shows nonvisualization of the extensor pollicis longus tendon (black arrow) with only the tendon sheath remaining. Long axis (C) ultrasound shows the torn distal edge of the retracted extensor pollicis longus tendon (arrow). Patient photograph (D) with the site of incision and torn retracted edges marked with small white arrows
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Figure 6: Extensor pollicis longus tear (A-D). Schematic diagram (A) and short axis (B) ultrasound at the level of the wrist shows nonvisualization of the extensor pollicis longus tendon (black arrow) with only the tendon sheath remaining. Long axis (C) ultrasound shows the torn distal edge of the retracted extensor pollicis longus tendon (arrow). Patient photograph (D) with the site of incision and torn retracted edges marked with small white arrows

Mentions: Acute tendon injuries tend to take the form of direct impact injury, stretch injury during contraction (strain), or penetrating injury. Depending on the site of tear of the tendon, injuries are classified into zones [Table 1]. The treatment and functional outcome depend on the zone of injury.[45] Ultrasound is useful to confirm the presence of tendon rupture [Figures 6 and 7], differentiate between the partial thickness and full thickness tears [Video 3], identify if the tear is associated with bony avulsion [Figure 8A–C], as well as to identify the precise location of the tendon ends.


Thumb ultrasound: Technique and pathologies
Extensor pollicis longus tear (A-D). Schematic diagram (A) and short axis (B) ultrasound at the level of the wrist shows nonvisualization of the extensor pollicis longus tendon (black arrow) with only the tendon sheath remaining. Long axis (C) ultrasound shows the torn distal edge of the retracted extensor pollicis longus tendon (arrow). Patient photograph (D) with the site of incision and torn retracted edges marked with small white arrows
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5036340&req=5

Figure 6: Extensor pollicis longus tear (A-D). Schematic diagram (A) and short axis (B) ultrasound at the level of the wrist shows nonvisualization of the extensor pollicis longus tendon (black arrow) with only the tendon sheath remaining. Long axis (C) ultrasound shows the torn distal edge of the retracted extensor pollicis longus tendon (arrow). Patient photograph (D) with the site of incision and torn retracted edges marked with small white arrows
Mentions: Acute tendon injuries tend to take the form of direct impact injury, stretch injury during contraction (strain), or penetrating injury. Depending on the site of tear of the tendon, injuries are classified into zones [Table 1]. The treatment and functional outcome depend on the zone of injury.[45] Ultrasound is useful to confirm the presence of tendon rupture [Figures 6 and 7], differentiate between the partial thickness and full thickness tears [Video 3], identify if the tear is associated with bony avulsion [Figure 8A–C], as well as to identify the precise location of the tendon ends.

View Article: PubMed Central - PubMed

ABSTRACT

Ultrasound is ideally suited for the assessment of complex anatomy and pathologies of the thumb. Focused and dynamic thumb ultrasound can provide a rapid real-time diagnosis and can be used for guided treatment in certain clinical situations. We present a simplified approach to scanning technique for thumb-related pathologies and illustrate a spectrum of common and uncommon pathologies encountered.

No MeSH data available.


Related in: MedlinePlus