Perkins traction used in: (A) Fracture shaft femur, (B) Foot drop, (C) CTEV, (D) Developmental dysplasia of Hip
Answer is A. Fracture shaft femur - Perkin's traction
Foot drop - Toe raising splint
CTEV - Dennis Brown splint 
DDH - Pavlick Hamers
           Bachelor cast
           Von Rosen splint