This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
A 4-year-old girl sustained an isolated, closed, diaphyseal fracture of her left femur in a motor vehicle accident. The fracture was transverse with approximately 1.5 cm of shoening. The most appropriate definitive management of this fracture is NOT RELATED-OHO 
Select and explain. 
A. Skeletal traction, B. Immediate application of a hip spica cast, C. Skeletal traction for 2 weeks followed by application of a hip spica cast, D. External skeletal fixation
B: Immediate application of a hip spica cast
Answer: B: Immediate application of a hip spica cast 
Explanation: Isolated, closed femoral shaft fractures in children under 10 years of age are best managed by immediate closed reduction and application of a spica cast.