The aiming device for cervical distractor pin insertion: a proof-of-concept feasibility study

摘要

Caspar cervical distractor system (A), Caspar cervical pins (B), The trajectory and position of Caspar pins at C4-5 in a fluoroscopic lateral view (C), (A = superior endplate of C4, B = inferior endplate of C4, C = intervertebral disc of C4-5, D = superior endplate of C5, E = inferior endplate of C5)