Abstract
Objective To investigate the feasibility of a new computer-assisted navigation frame for percutaneous scaphoid screw placement.Methods Two fresh cadaveric upper limbs were used for percutaneous scaphoid screw placement under ISO-C3D navigation system combined with a new positioning and guidance frame.The specimens were assessed grossly and radiologically.Results Scaphoid screw placement was performed successfully using this new navigation system.Only one attempt was required for percutaneous guide wire insertion and the screws were within the safe zone of the scaphoid for both of the specimens.Conclusion This preliminary study proved the feasibility of percutaneous scaphoid screw placement using this new computer-assisted navigation frame.The accuracy and stability of this system can meet the requirement of percutaneous scaphoid screw placement in this study. Key words: Scaphoid ; Percutaneous screw placement ; Computer-assisted navigation ; Digital medicine
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