LAUSR

Abstract The limping child is a common presentation to the emergency department. When confronted with a crying child who cannot walk or explain why, a structured approach based on an appreciation of the underlying physiology can help identify those children with (sometimes subtle) red flags, avoid unnecessary interventions and hospital stays. Here we discuss the differential diagnosis of an acute atraumatic limp, and suggest an approach to examination and investigation, including some key pitfalls and signs to look out for.