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with the Discocerv® Cervical Prosthesis A

CTDR may be indicated after ablation of a hernia causing cervicobrachial neuralgia (CBN), while LTDR is indicated after ablation of a degenerative disc implicated in chronic low back pain.Both procedures use an anterior approach, although the technical problems are specific, as the vascular obstacles to lumbar disc access, especially above L5–S1, have no equivalent at the cervical level.Theoretically, the interest of TDR lies in implanting a mobile and, if possible, shock-absorbing component with sufficient height to replace the disc that has either been crossed so as to remove the cervical compressive discal hernia or totally removed in order to treat lumbar pain.

CTDR may be indicated after ablation of a hernia causing cervicobrachial neuralgia (CBN), while LTDR is indicated after ablation of a degenerative disc implicated in chronic low back pain.Both procedures use an anterior approach, although the technical problems are specific, as the vascular obstacles to lumbar disc access, especially above L5–S1, have no equivalent at the cervical level.Theoretically, the interest of TDR lies in implanting a mobile and, if possible, shock-absorbing component with sufficient height to replace the disc that has either been crossed so as to remove the cervical compressive discal hernia or totally removed in order to treat lumbar pain.

on Postoperative Segmental Alignment with the Bryan Cervical Disc Prosthesis
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20 discocerv (scient'x prosthesis)

In vitro evaluation of a ball-and-socket cervical disc prosthesis with cranial ..
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Background: Anterior cervical discectomy and fusion (ACDF) is currently treatment of choice for managing medical therapy refractory cervical degenerative disc disease. Numerous studies have demonstrated the effectiveness of ACDF; patients generally experience rapid recoveries, and dramatic improvement in their pain and quality of life. However, as several studies reported symptomatic adjacent segment disease attributed to fusions’ altered kinematics, cervical disc arthroplasty emerged as a new motion-sparing alternative to fusion. Fusion at one level increases motion at adjacent levels along with increased intradiscal pressures. This phenomenon can result in symptomatic adjacent level degeneration, which can necessitate reoperation at these levels.

The era of cervical arthroplasty began in Europe in the late 1990s. In recent years, artificial cervical disc arthroplasty (ACDA) has been increasingly used by spine surgeons for degenerative cervical disc disease. There have been several reports of safety, efficacy and indications of ACDA.

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Conclusion: Single level cervical arthorplasty with Discocerv showed good clinical outcomes and motion preservation sustained up to postoperative 3 years. Also, there were no major complications or no heterotopic ossification. However, 14% of patients felt friction sound by themselves.

Study Design Prospective observational cohort. Objective To document the accuracy of uncovertebral anatomic targeting in positioning cervical disc arthroplasty.
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Introduction: Cervical disc arthroplasty has been shown to be as effective as fusion in radiculopathy in appropriately selected patients. Discocerv(Alphatec Spine,Carlsbad, USA) was introduced to reduce the difficulty of end plate preparation. Aim of this study is to evaluate the early results of clinical and radiographic outcome in patients implanted with Discocerv, which is semiconstrained mobile prosthesis made of ceramic bearings.

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Uncovertebral anatomic midline targeting for cervical disc ..


uncovertebral anatomic targeting for cervical disc ..

Cervical arthroplasty offers several theoretical advantages over anterior cervical discectomy and fusion (ACDF) in the treatment of selected patients with medically refractory cervical radiculopathy. Preserving motion at the operated level, Cervical TDR has the potential to decrease the occurrence of adjacent segment Degeneration.

Total disc replacement - EM|consulte

All patients presented with cervical discopathy who had myelopathy or radiculopathy and failed conservative management, undergoing cervical disc arthroplasty by ACDA were included, consecutively. Patients were followed for at least 2 years.

Discover (DePuy Spine), a metal-on-polymer device; Discocerv ..

A standard approach was performed to the anterior cervical spine. Patients were positioned supine while holding neck in neutral position. A combination of sharp and blunt dissection was performed to expose longus coli musculature and anterior cervical vertebrae. Trachea and esophagus were retracted medially and carotid artery and jugular vein laterally. After a thorough discectomy, the intersomatic space is distracted in a parallel way by a vertebral distracter. Followed by Caspar distractor is applied to provide a working channel into posterior disc space. In this stage, any remnant disc materials as well as osteophytes are removed and foraminal decompression is done. Posterior longitudinal ligament (PLL) opening and removal, although discouraged by some, is done next. In order to define the size of the prosthesis, multiple trials are tested. It is important not to exceed the height of the healthy adjacent disc to avoid facet joint overdistraction. An specific insertor is applied to plant the prosthesis in disc space. Control X-rays are advised to check the precise positioning of the implant.

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