Artificial intervertebral discs have been developed to act as a functional prosthetic replacement unit for intervertebral units in much the same way as prostheses have been developed for a variety of joints such as the hip or knee. The anterior cervical spine is exposed, and after standard decompression of the neural elements, an artificial disc prosthesis is placed between the vertebrae this procedure can be used for patients with acute disc herniation or cervical spondylosis. Nj hallab, v singh, in joint replacement technology, 2014 1654 elastic intervertebral replacement devices the advent of elastic core total disc replacement implants has pioneered elastic core tjr technology because the relatively small range of motion required by disc arthroplasty implants compared to a hip or knee, facilitates the potential of this type of design. Several prosthetic devices are currently available for artificial intervertebral disc arthroplasty (aida) of the cervical spine aida is proposed as an alternative to anterior cervical discectomy and fusion (acdf) for.
Presently, the kinematic disc prosthesis model (sb charité) is the best disc replacement compromise, and is the basis of the evolution of the prosthetic concept at the dawning of the year 2000. Aetna considers lumbar prosthetic intervertebral discs (eg, the charite artificial disc, and the prodisc-l to disc replacement) experimental and investigational for lumbosacral degenerative disc disease and for all. The mobi-c ® cervical disc prosthesis (mobi-c ®) is a single use device for cervical intervertebral disc replacement at one level or two contiguous levels from c3 to c7 designed to maintain/restore segmental motion and disc height.
Description artificial intervertebral disc replacement was designed as an alternative to cervical and lumbar spinal fusion surgery for those patients suffering from back or neck pain due to degenerative disc disease (ddd. An intervertebral disk prosthesis is described which with respect to its external dimensions imitates a natural intervertebral disk and connects two adjacent vertebrae to their upper and lower attachment surfaces. Keywords: artificial disc prosthesis, total disc replacement, degenerative disc disease, spinal fusion, low-back pain introduction of late, total disc replacement has been increasingly used for the treatment of degenerative disc disease, with recent evidence suggesting that it may be a suitable alternative to spinal fusion [ 2 , 4 , 5 , 6 .
Intervertebral disk disk degeneration annulus fibrosis degenerative disk disease total disk replacement these keywords were added by machine and not by the authors this process is experimental and the keywords may be updated as the learning algorithm improves. There was normal motion of the disc prosthesis at c5-c6 and c6-c7 there was minimal motion between c2-c4 and mild degenerative disease at c2-c3 and c4-c5 approximately 118 months postoperatively, the patient continued to have worsening neck pain that radiates to the left shoulder and arm. Prosthetic devices to replace the intervertebral disc may be broadly divided into devices that replace the nucleus only, leaving the annulus and cartilaginous portions of the endplate intact, and devices that replace the entire disc. Artificial disc replacement (adr) is newer type of spinal disc procedure that utilizes an anterior (front - through the abdominal region) approach to replace a painful, arthritic, worn-out intervertebral disc of the lumbar spine with a metal and plastic prosthesis (artificial disc.
Artificial disc replacement (adr), or total disc replacement (tdr), is a type of arthroplasty it is a surgical procedure in which degenerated intervertebral discs in the spinal column are replaced with artificial devices in the lumbar (lower) or cervical (upper) spine. All currently proposed intervertebral disc prostheses are contained within the disc space therefore, allowance must be made for variations in patient size, level, and height there may be a need for instrumentation to restore collapsed disc space height prior to placement of the prosthesis. The purpose of this study is to evaluate the cervical and lumbar intervertebral disc replacement by a prosthesis ( arthroplasty ) in adults suffering from degenerative disc disease.
The report indicated that good placement and good sizing of the disc prosthesis appeared problematic for many of the patients, adjacent-disc degeneration was seen in many patients, and polyethylene wear with inflammatory fibrous tissue containing wear debris was observed. Disc arthroplasty is the replacement of a painful pathological intervertebral disc by a prosthesis, which, unlike spinal fixation, has the advantage of retaining vertebral mobility in the segment concerned. Intervertebral disc prosthesis cervical spine the implantation of a disc prosthesis is a globally accepted method for the treatment of symptomatic degenerative disease of the intervertebral discs. Clearly visible is the desired alignment of the artificial disc nucleus, the movable core of the intervertebral disc prosthesis on the dynamics of the spine stability testing of m6-l spinal disc prosthesis m6 shows stability over millions of operating cycles.
The natural cervical intervertebral disc is an amazing mechanical structure from an engineering perspective it has the ability to absorb a large compressive load while still providing an impressive range of motion between the bones in the neck. Aetna considers prosthetic intervertebral discs experimental and investigational for persons who have symptomatic degenerative disk disease or herniated disc at more than 1 level for a single‐level artificial disc prosthesis or 2 contiguous levels for a 2‐level artificial disc prosthesis. Efficacy of prosthetic intervertebral disc replacement in the lumbar spine with studies reporting 13-year follow-up, but with most of the evidence from studies with shorter durations of follow- up 21 the institute concluded that evidence was adequate to support the use of this.