A child with a completely displaced (Gartland type III) supracondylar fracture of the humerus has a pink hand without palpable radial pulse. After closed reduction and percutaneous pinning, the hand remains pink. The most appropriate next step regarding the pulseless state is:
- A Immediate surgical arterial exploration and repair
- B Fasciotomy of the forearm to prevent compartment syndrome
- C Observation with close monitoring — a pink, well-perfused hand after fracture reduction indicates adequate collateral circulation through the anterior interosseous and ulnar collateral vessels; the pulseless pink hand does not mandate vascular exploration ✓
- D Brachial arteriogram before any surgical intervention
Explanation
The concept of the 'pulseless pink hand' in Gartland type III supracondylar fractures (after reduction and pinning) is well-established. The radial pulse may be absent due to arterial spasm, intimal injury, or vessel kinking even while collateral perfusion (through anterior interosseous/ulnar arterial collaterals) maintains adequate hand perfusion. If the hand is warm, well-capillary-refilled, and pink after reduction, observation is appropriate with vigilant neurovascular checks. Vascular exploration is indicated only for the 'pulseless white/cold hand' (absent perfusion) after reduction. Unnecessarily exploring a vasospastic artery risks iatrogenic injury and thrombosis.
Reference: Maheshwari Essential Orthopaedics, 6th ed.
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Written and medically reviewed by the StethoPrep medical team.