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About a painful wrist after a forced dorsiflexion trauma
  1. Oscar Thabouillot,
  2. Didier Ollat
  1. Emergency Department, Bégin Military Hospital, Saint-Mandé, France
  1. Correspondence to Dr Oscar Thabouillot, Emergency Department, Bégin Military Hospital, 69 avenue de Paris, 94160 Saint-Mandé, France; thabouillot{at}hotmail.com

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Clinical introduction

A young adult without medical history was admitted a day following right wrist trauma. He fell from a height of three stairs with forced dorsiflexion of his wrist, and complained of severe pain and functional disability.

Clinical examination revealed a mildly swollen wrist with tenderness on dorsal palpation. Active and passive movements were impossible because of the pain. Anatomical snuffbox and scaphoid palpation was painless.

Question

What is the diagnosis (figure 1)?

  1. Isolated scaphoid fracture

  2. Isolated capitate fracture

  3. Fenton’s syndrome

  4. Wrist sprain

Figure 1

Right wrist face X-ray.

For the answer see page 413.

For the answer see page 385.

Answer: B

Radiography shows a capitate fracture (figure 2). Capitate fracture is very rare, and in most of the cases, it is associated with scaphoid fracture, 180° rotation of the capitate and periulnate dislocation (Fenton’s syndrome1). Isolated capitate fractures constitute only 0.3% of wrist fractures.2

Figure 2

Right wrist face X-ray with marked capitate fracture.

In the case of a capitate fracture, a CT scan is required in order to eliminate an associated lesion. In this case, fracture was isolated.

Wrist trauma with significant symptomatology and suspect physical examination or radiography should be explored by CT scan and needs specialised advice. Without a negative scan, a wrist sprain cannot be confirmed.

References

View Abstract

Footnotes

  • Contributors OT wrote the text and examined and treated the patient. DO corrected the article and found the references.

  • Competing interests None.

  • Provenance and peer review Not commissioned; internally peer reviewed.

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