| 摘要 |
<p>The invention relates to a double-articulation-type intervertebral disc prosthesis model which is designed to replace the function and movement of intervertebral discs and which can be used universally owing to the main characteristic thereof, namely that it can be used as a constrained, semi-constrained or unconstrained prosthesis. The inventive prosthesis is particularly suitable for the treatment of a degenerative pathology affecting the intervertebral disc, discal hernias by anterior approach, syndromes involving transition of the overlying disc, chronic lumbalgia resistant to conservative treatment and chronic contiguous vertebral instabilities. The prosthesis is made from biocompatibility-tested materials and is equipped with a shallow profile which optimises same for implantation in a human and which comprises three parts: a lower disc, an upper disc, and an intermediate part. The invention is used to replace discs in the lumbar and cervical spine and can be positioned either anteriorly or laterally.</p> |
