Abstract: In an intervertebral implant having an upper and a lower supporting surface for abutment with adjacent vertebral bodies, having a concave dorsal longitudinal side, a ventral longitudinal side lying opposite the latter, having a rounded contour at the two end faces connecting the longitudinal sides and having at least one hole extending through the implant from the upper to the lower supporting surface, in order to facilitate the introduction of bone material after insertion of the intervertebral implant into an intervertebral space it is proposed that in the region of the middle portion of the ventral longitudinal side at least one introduction channel for bone material, which extends through the implant, exits from the implant.

Abstract: In order, in the case of a surgical instrument for introducing intervertebral implants into the intervertebral space between adjacent vertebral bodies, to facilitate the introduction of the intervertebral implant even when access is difficult, it is proposed that the surgical instrument comprises two mutually opposing guide bodies, which each have a guide directed towards the other guide body and together form between them a guideway, along which an intervertebral implant is insertable laterally into the intervertebral space.

Abstract: An implant for insertion between vertebrae of the verterbral column having a substantially rectangular or trapezoidal cross-section and covering faces adapted to face the adjacent vertebrae which are porous and/or designed with a profile. The implant has such a width that it substantially covers at the maximum the rear half of the vertebrae facing the spinous process, preferably at the maximum the rear third of the vertebrae facing the spinous process, and such a length that it substantially covers the rear region of the vertebrae. The limiting surface of the implant facing the inside of the vertebrae and extending in the direction of the adjacent vertebrae is convex. This enables an adequate and reliable supporting function to be achieved with only one implant and can easily be inserted sideways from behind.

Abstract: In order, in the case of a surgical instrument for introducing intervertebral implants into the intervertebral space between adjacent vertebral bodies, to facilitate the introduction of the intervertebral implant even when access is difficult, it is proposed that the surgical instrument comprises two mutually opposing guide bodies, which each have a guide directed towards the other guide body and together form between them a guideway, along which an intervertebral implant is insertable laterally into the intervertebral space.

Abstract: In an intervertebral implant having an upper and a lower supporting surface for abutment with adjacent vertebral bodies, having a concave dorsal longitudinal side, a ventral longitudinal side lying opposite the latter, having a rounded contour at the two end faces connecting the longitudinal sides and having at least one hole extending through the implant from the upper to the lower supporting surface, in order to facilitate the introduction of bone material after insertion of the intervertebral implant into an intervertebral space it is proposed that in the region of the middle portion of the ventral longitudinal side at least one introduction channel for bone material, which extends through the implant, exits from the implant.