Boxer's fracture: Difference between revisions

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===Diagnosis===
===Diagnosis===
*Typically on plain hand x-ray showing fracture of the 4th or 5th metacarpal
*Typically on plain hand x-ray showing fracture of the 4th or 5th metacarpal
*"Uncomplicated" defined as:
**Minimally displaced
**Closed
**Isolated injury
**Fracture angulation of <70 degrees


==Management==
==Management==

Revision as of 01:26, 18 September 2019

Background

  • Fracture of the 4th or 5th metacarpal caused by an axial load, typically from punching a person or object

Clinical Features

  • Pain or swelling along the 4th or 5th metacarpals
  • Volar angulation of metacarpal or "missing 4th/5th knuckle"
  • Look for areas of skin breakdown which may signify a fight bite that can result in a closed fist infection if untreated

Differential Diagnosis

Hand and Finger Fracture Types

Evaluation

Boxer's Fracture

Workup

  • AP and lateral hand x-ray

Diagnosis

  • Typically on plain hand x-ray showing fracture of the 4th or 5th metacarpal
  • "Uncomplicated" defined as:
    • Minimally displaced
    • Closed
    • Isolated injury
    • Fracture angulation of <70 degrees

Management

  • Indications for reduction are contingent upon angulation and rotation
    • Any rotational deformity should be reduced to allow proper hand function (seen as scissoring)
    • Angulation >30° in the 4th digit or >40° in the 5th digit should be reduced
  • Splinting
  • Buddy taping[2]
    • 2019 Annals of EM suggested no statistical difference in certain outcomes between plaster and buddy tape.
    • Per paper, applicable when pt 18-70 years old without open, intraarticular, or comminuted fracture, and angulation < 70 degrees.

Disposition

  • Outpatient management

See Also

References

  1. Hofmeister EP, Kim J, and Shin AY. Comparison of 2 Methods of Immobilization of Fifth Metacarpal Neck Fractures: A Prospective Randomized Study. The Journal of Hand Surgery. 2008; 33(8):1362–1368.
  2. Pellatt, R., Fomin, I., Pienaar, C., Bindra, R., Thomas, M., Tan, E., … Keijzers, G. (2019). Is Buddy Taping as Effective as Plaster Immobilization for Adults With an Uncomplicated Neck of Fifth Metacarpal Fracture? A Randomized Controlled Trial. Annals of Emergency Medicine, 74(1), 88–97. doi: 10.1016/j.annemergmed.2019.01.032