A. Bruskin*, B. Zilbershteyn*, Ya. Zaulan*, V.Aleksandrovskiy*, M. Shoam**, M. Roffman*
* Orthopedics Department Medical Centre Karmel, Russia
** Robotics Laboratory, Department of Engineering Mechanics University Technion, Haifa, Israel
We started routine use of the Spine-AssistÒ automatic device (MAZOR) in 2006. This system was used in vertebroplasty, biopsy and placement of fixtures into vertebral bodies. During the last two years we performed 40 (a group under study) and 33 operations (vertebroplasty) with and without applying this device, respectively. There was considerable difference in duration of radiation exposure between the groups. Radiation load in the group under study was 3 sec as opposed to 11 sec in the control group (5 and 24 films on the average, respectively). Besides, we managed to place 350 screws into vertebral bodies; deviation was not more than 1 mm from planned direction. It was greater than 1 mm only in 6 cases. We performed 12 biopsies under control of an electron-optical converter. They were no less successive than those, made with the help of CT.
Robot-assisted spinal surgery is a new and safe method with radical decrease of radiation load on personnel. This device provides higher precision in vertebroplasty, fixing vertebral bodies, screw placement and biopsy. Its use allows to reduce radiation load on personnel, participating in operation; to achieve higher precision due to navigation control with a computer; to avoid complications, caused by human errors; to diminish a traumatic character of a procedure for a patient. It should be noted, that fixation of one level with and without the system use took 92 and 112 min, respectively. This temporal increase conditions necessity of better training of personnel and organizational improvement of its work.