This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2019, Subject name: Orthopaedics
[{'content': 'A 6-year-old child is suspected with supracondylar fracture of right hand, complaining of pain and swelling. X-ray of right elbow was not significant. What is the next best step in this case? \nSelect and explain. \nA. Compare with X-ray of left hand, B. Closed reduction and slab, C. Closed reduction with K wire fixation, D. Cast', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Supracondylar humerus fracture: - Suspected elbow fracture in a child - Supracondylar humerus fracture - Undisplaced of humerus - posterior fat is elevated - "Fat pad sign" - Fracture is displaced -distal fragments goes posteriorly - Extension - Common n/v involved - AIN > Median > Radial> Ulnar (AMRU) Posteromedial displacement > posterolateral It is an extra -aicular injury TOC- CR + slab(fixed, stainless steel wire) K wire placed in children for 4-6 weeks, then removed. If reduction is not proper, it can lead to cubitus Varus \'\'Gun stock deformity\'\' Management: Conservative Tx: 1. Smith\'s traction 2. Dunlop traction Sometimes, it can lead to damage of the brachial aery resulting in the \'\'pulselessness\'\'. | Mgt: closed reduction & look for reappearance | - Pulse - Color- pink If no reappearance, then explore & repair. Most common damaged aery in SCH is Brachial AeryQ - Since in the given options CR + Cast is not given, CR + Slab is the most appropriate answer', 'role': 'assistant'}]