Which fixation method is designed to produce interfragmentary compression across a fracture line?
Correct answer: A. A lag screw
- A. A lag screw
- B. A cerclage wire
- C. A bone plate spacer
- D. An intramedullary pin
Explanation
A lag screw compresses one fracture fragment against another when the near cortex is overdrilled and the far cortex provides the thread purchase. Cerclage wire and intramedullary pins can stabilise fractures but do not produce this specific compression by themselves.
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About Veterinary Surgery
Covers principles of asepsis, tissue handling, haemostasis, wound healing, surgical instruments, sutures, anaesthesia and perioperative care. It includes common procedures and conditions involving the skin, abdomen, bones, joints and urinary or reproductive tracts, while distinguishing surgical emergencies from cases managed medically.
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