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Radiology · MSK imaging: scaphoid fracture
Sample itemAfter a fall on an outstretched hand, a patient has anatomical snuffbox tenderness, but wrist radiographs are normal. What is the next step?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Immobilise in a thumb spica and obtain MRI or repeat imaging in 10 to 14 days
An initial radiograph can miss scaphoid fractures, and missed fractures lead to nonunion and avascular necrosis of the proximal pole. MRI is the most sensitive early test. Immobilisation is continued until fracture is excluded.
Option by option
A. Surgical exploration
Surgery is not warranted without confirmation.
B. Immobilise in a thumb spica and obtain MRI or repeat imaging in 10 to 14 days (correct)
Correct. Treat as a fracture and re-image with MRI or a repeat film.
C. Bone scan the same day only
A bone scan is less specific and is not done immediately.
D. Discharge without follow-up
Discharge risks nonunion and AVN.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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