prodisc® L Surgical Technique Animation (2021) | Lumbar Total Disc Replacement | Disc Arthroplasty

Introducing Sentinel Spine, the company offering the most studied and clinically proven

disc

replacement

technology in the world, beginning with clinical use in 1990, in over 30 years of use,

pro

disc

has become the most comprehensive

total

disc

replacement

. studied and used in the world, with more than 540 published studies. The ProDisc L Total Disc Replacement is designed to reduce pain, preserve motion, and improve patient function in patients with degenerative disc disease at one or two levels between L3 and S1. The Protiscal implant is based on a ball-and-socket design with a semi-constrained fixed core They provide a fixed center of rotation and a physiological range of motion.

Prodisc endplates have patented central keels and lateral prongs for initial fixation to the vertebral bodies and a plasma-sprayed titanium coating on all bone-contacting surfaces to promote osseous integration with the Prodisc

total

disc replacement. There are angulation options for the top and bottom end plates. The

prodisc

al endplates are inserted in a collapsed position and then distracted for insertion of the polyethylene inlay. This modular

technique

facilitates endplate insertion and provides controlled distraction for mounting the polyethylene inlay if a two-level endplate is made. The procedure completes one level and then moves on to the next. The endplate options guide describes the endplate options for each segment of the spine, for example, for the l5 s1 segment, if there is a low sacral slope, the 3 degree upper endplate and lower endplate are recommended. of 3 degrees.

Additionally, for a high sacral slope and high lordosis angle, the three-degree upper endplate and eight-degree lower endplate are suggested. The final choice of endplate will depend on preoperative films as well as intraoperative testing to first determine the best fit for each patient. identify and mark the midline on the upper and lower vertebral bodies adjacent to the operative level; Second, create a midline-centered annulotomy wide enough to accommodate the prodisk implant. perform a complete discectomy using the bone elevator and standard rounds, kerasins and curettes, ensuring that the posterolateral corners are free of disc material, then insert the vertebral body separators into the posterior margin of the vertebral bodies to gradually remobilize the segment of movement.

The posterior longitudinal ligament should be completely exposed and released or resected as necessary to achieve remobilization. Trial implants are used to determine the proper implant footprint, lordotic angle, and disc height. At this point, advance the trial to the posterior margin of the vertebral bodies. The adjustable stop can also be removed to allow the test to be positioned more posteriorly. Next, advance the chisel into the vertebral bodies until it is fully seated in the trial, the chisel and trial are left in place until the prodiscal implant is ready for insertion. Now load the bottom end plate and the top end plate into the inserter and nest the two end plates together once complete, remove the chisel and align the test. keels of the prodiscal implant with the chisel cuts and insert the end plates into the posterior margin of the vertebral bodies, then load the polyethylene inlay into the slots of the lower arms of the inserter.

Assemble the distractor onto the inserter and use the thumbscrew to completely. advance the distractor when done check that the trailing edges of the end plates have separated from each other insert the inlay pusher into the slots of the lower arms then manually push and lock the polyethylene inlay on the lower end plate finally remove the instruments and check the final position of the implant if doing a two level procedure, repeat for the second level you want.