Which instrument movement principle improves efficiency in peg transfer?

Which instrument movement principle improves efficiency in peg transfer?

• A. Rapid, uncoordinated movements.
• B. Constant instrument speed with no regard to trajectory.
• C. Smooth, coordinated bimanual movements with stable camera control and consistent transfer trajectories.
• D. Minimal attention to camera control.

Answer: (C)

Efficient peg transfer comes from smooth, coordinated bimanual control paired with a stable camera view and consistent transfer paths. When both hands work together in a deliberate, complementary way, one instrument steadies and aligns the peg while the other moves it to the target, following a planned trajectory. This minimizes wasted motion, reduces instrument collisions, and lowers the chance of dropping a peg. A steady camera view prevents misjudging depth and distance, so the surgeon can anticipate the next move and keep a steady rhythm. With predictable transfer trajectories, motions become practiced and efficient rather than reactive, speeding the task and improving accuracy. In contrast, rapid, uncoordinated movements or neglecting camera stability disrupt timing, increase tremor and errors, and waste time.