Subungual air entrapment

Case contributed by Evangeline Collins
Diagnosis certain

Presentation

Injury 14 days ago, increased pain and discharge ?foreign body

Patient Data

Age: 20 years
Gender: Male
x-ray

Postacute comminuted fracture at the terminal tuft of the middle phalanx.

Extensive subungual air entrapment.

Subtle periostitis and bone loss, which may be related to fracture healing.

However, osteomyelitis cannot be excluded.

Case Discussion

Postacute fractures are considered after 14 days, subacute 5 to 14 days, acute 0 to 5 days.1

Subungual air entrapment, refers to the gas/air trapped beneath the nail bed, which can cause infection.

Often this type of fracture is considered 'open' for this reason.

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