Fig. 5
From: The aiming device for cervical distractor pin insertion: a proof-of-concept, feasibility study
Patient 1 was performed Single-level C-TDR C5-6. Preoperative lateral X-ray (A), Sagittal MRI (B), Patient positioning (C), Intraoperative measurement of C5-C6 superior and inferior endplate angle (D), First Caspar pin placement using the aiming device (E, F), Second Caspar pin placement (G), C5-6 Caspar pin placement measuring SE-CP & IE-CP angles (H), C5-6 Caspar cervical distractor placement (I), Caspar cervical distractor system creating the working space (J), Intraoperative lateral fluoroscopic view (K)