Abstract: Disc prosthesis comprising an insert in the form of a flexible cushion, a first half-shell and a second half shell, the insert in the form of a flexible cushion being positioned between the half-shells, characterized in that a first of the half-shells includes a first base provided with a first surface for hooking on to a first vertebra and a recessed annulus for forming a first cup and in that a second of the half-shells is provided with a first surface for hooking on to a second vertebra and a second surface bearing a rim surrounding a second cup, the cups facing each other each receiving an upper crown and a lower crown of the insert, the annulus and the rim forming walls that slot together with play and making stops for angular and shearing movements between the half-shells.

Abstract: The invention relates to a vertebral implant placed after a laminectomy and fixed by transfacet screws arranged in a translaminar direction. The invention also relates to a placement instrument and to a method for the placement of an implant.

Abstract: Disclosed is a dynamically stabilizing intervertebral implant including a stabilizing wedge, a flexible link in the form of a strap, and a blocking pin. The body of the stabilizing wedge includes a recess extending along a longitudinal axis, coincident with the posterior approach axis, and through which the strap passes. The blocking pin can engage inside the recess by movement in the recess longitudinal direction. The strap is immobilized with respect to the stabilizing wedge by being clamped between the pin and the facing recess wall. An tubular implant holder has an internal channel through which the blocking pin can be inserted and guided as far as the recess, in the direction of the longitudinal axis of the recess, when the implant holder is fixed to the stabilizing wedge so the internal channel and the recess are in parallax relative to each other.

Abstract: Disclosed is a dynamically stabilizing intervertebral implant including a stabilizing wedge, a flexible link in the form of a strap, and a blocking pin. The body of the stabilizing wedge includes a recess extending along a longitudinal axis, coincident with the posterior approach axis, and through which the strap passes. The blocking pin can engage inside the recess by movement in the recess longitudinal direction. The strap is immobilized with respect to the stabilizing wedge by being clamped between the pin and the facing recess wall. An tubular implant holder has an internal channel through which the blocking pin can be inserted and guided as far as the recess, in the direction of the longitudinal axis of the recess, when the implant holder is fixed to the stabilizing wedge so the internal channel and the recess are in parallax relative to each other.

Abstract: Disclosed is a dynamically stabilizing intervertebral implant composed of a stabilizing wedge (1), a blocking pin (2), a locking screw (3), and a flexible link in the form of a strap. The stabilizing wedge includes a recess (12) through which the strap can pass. The blocking pin can come into engagement with the wedge by movement inside the recess in the direction of the main axis of the body of the wedge in such a way that the longitudinal axis of the blocking pin firstly coincides with the longitudinal axis of the recess, secondly is perpendicular to the longitudinal axis of the first strap portion inside the recess, and thirdly is parallel to the surface of the first strap portion inside the recess. The strap is immobilized with respect to the stabilizing wedge by being clamped between the blocking pin and the inner wall of the recess.

Abstract: Disclosed is a dynamically stabilizing intervertebral implant composed of a stabilizing wedge (1), a blocking pin (2), a locking screw (3), and a flexible link in the form of a strap. The stabilizing wedge includes a recess (12) through which the strap can pass. The blocking pin can come into engagement with the wedge by movement inside the recess in the direction of the main axis of the body of the wedge in such a way that the longitudinal axis of the blocking pin firstly coincides with the longitudinal axis of the recess, secondly is perpendicular to the longitudinal axis of the first strap portion inside the recess, and thirdly is parallel to the surface of the first strap portion inside the recess. The strap is immobilized with respect to the stabilizing wedge by being clamped between the blocking pin and the inner wall of the recess.

Abstract: The invention relates to a vertebral implant placed after a laminectomy and fixed by transfacet screws arranged in a translaminar direction. The invention also relates to a placement instrument and to a method for the placement of an implant.

Abstract: The invention concerns an intervertebral dynamic fixation implant intended for stabilization of the lumbar spine in one or more intervertebral segments, comprising: an intervertebral wedge extending along a vertical axis, comprising two craniocaudal notches intended for receiving the spinous processes of two lumbar vertebrae Ln and Ln+1, a vertical channel being arranged on the two lateral faces of said intervertebral wedge, a rigid strip covering a portion of the back face and of the two lateral faces of the intervertebral wedge, so as to leave a passageway in the vertical side channels, at least one hole passing through the intervertebral wedge from one lateral face to the other, in the caudal portion of the rigid strip, two pedicle screws fixed to the lumbar vertebra Ln+1, comprising a system for tensioning and attaching a braid Tn which wraps around the spinous process of lumbar vertebra Ln and passes through the passageways of the side channels of the intervertebral wedge, a rod perpendicular to the vert

Abstract: The invention relates to an intervertebral implant comprising a spacer designed to be applied between two spinous processes of two vertebrae. The spacer comprises: two elements (10, 12) made of a first material, and each presenting a first end (10a, 12a) and a second end (10b, 12b), said first end (10a, 12a) being securable to a spinous process; and a connection piece (14) made of a second material of greater elastic deformability than said first material, said connection piece interconnecting said second ends (10b, 12b) of said two elements (10, 12) so that the stresses that are exerted on said two elements (10, 12) are damped, and said connection piece enabling said intervertebral implant to limit and brake the relative movements of said vertebrae.

Abstract: The invention provides an intervertebral implant for the lumbo-sacral joint, the implant consisting in a spacer suitable for being placed between the fifth lumbar vertebra and the sacral vertebra articulated thereto, the body of said spacer presenting in its top face a groove extending in the midplane of the spacer and suitable for receiving the spinous process of said lumbar vertebra. A longitudinal housing oriented orthogonally to said groove is formed in the bottom face and is suitable for receiving the top portion of the sacral vertebra. The longitudinal housing is defined by an extension and by a tab of width narrower than the width of the body of the spacer. The section of the housing in the midplane of the space is generally U-shaped, being inclined relative to the bottom of the groove.

Abstract: Embodiments disclosed herein provide a method of implanting an intervertebral disk prosthesis that can be assembled and disassembled in a minimally invasive fashion. The prosthesis comprises a first fixing element having an anchoring first face and a cooperation second face; a second fixing element having an anchoring first face and a cooperation second face; a first prosthesis element having an active first face and a cooperation second face, the cooperation faces of the first fixing element and the first prosthesis element serving to fasten the two elements together; a second prosthesis element having an active first face and a cooperation second face, the cooperation faces of the second fixing element and the second prosthesis element serving to fasten the two elements together; and each of the active faces of the prosthesis elements defining at least a portion of a spherical cap.

Abstract: A disc prosthesis for vertebrae is provided. The disc prosthesis comprises a first plate, a first insert, a second plate, and a second insert. The first plate comprises a first active face and a first anchor face. The second plate comprises a second active face and a second anchor face. The first anchor face is configured to anchor the first plate to a first vertebra. The second anchor face is configured to anchor the second plate to a second vertebra. The first plate comprises a cavity for receiving the first insert. The cavity comprises a concave spherical cap. The second plate comprises an opening that connects the second active face to the second anchor face. The second insert comprises a fastener portion, said fastener portion is friction fit in the opening.

Abstract: The invention provides an intervertebral implant for the lumbo-sacral joint, the implant comprising a spacer suitable for being disposed between the fifth lumbar vertebra L5 and the vertebra S1 of the sacrum that is articulated to the vertebra L5. The implant comprises a flexible tie having end portions suitable for being fastened to the sacrum with the help of fasteners such as pedicular screws. The flexible tie has an intermediate portion suitable for co-operating with a connection system such as a hook provided on the spacer so that the flexible tie connects the spacer to the sacrum. The flexible tie is put under tension in such a manner as to exert a return force on the spacer towards the vertebra S1.

Abstract: Embodiments disclosed herein provide a method of implanting an intervertebral disk prosthesis that can be assembled and disassembled in a minimally invasive fashion. The prosthesis comprises a first fixing element having an anchoring first face and a cooperation second face; a second fixing element having an anchoring first face and a cooperation second face; a first prosthesis element having an active first face and a cooperation second face, the cooperation faces of the first fixing element and the first prosthesis element serving to fasten the two elements together; a second prosthesis element having an active first face and a cooperation second face, the cooperation faces of the second fixing element and the second prosthesis element serving to fasten the two elements together; and each of the active faces of the prosthesis elements defining at least a portion of a spherical cap.

Abstract: Embodiments disclosed herein provide a method of implanting an intervertebral disk prosthesis that can be assembled and disassembled in a minimally invasive fashion. The prosthesis comprises a first fixing element having an anchoring first face and a co-operation second face; a second fixing element having an anchoring first face and a co-operation second face; a first prosthesis element having an active first face and a co-operation second face, the co-operation faces of the first fixing element and the first prosthesis element serving to fasten the two elements together; a second prosthesis element having an active first face and a co-operation second face, the co-operation faces of the second fixing element and the second prosthesis element serving to fasten the two elements together; and each of the active faces of the prosthesis elements defining at least a portion of a spherical cap that is respectively concave or convex.

Abstract: The invention provides an intervertebral implant for the lumbo-sacral joint, the implant consisting in a spacer suitable for being placed between the fifth lumbar vertebra and the sacral vertebra articulated thereto, the body of said spacer presenting in its top face a groove extending in the midplane of the spacer and suitable for receiving the spinous process of said lumbar vertebra. A longitudinal housing oriented orthogonally to said groove is formed in the bottom face and is suitable for receiving the top portion of the sacral vertebra. The longitudinal housing is defined by an extension and by a tab of width narrower than the width of the body of the spacer. The section of the housing in the midplane of the space is generally U-shaped, being inclined relative to the bottom of the groove.

Abstract: Embodiments disclosed herein provide a method of implanting an intervertebral disk prosthesis that can be assembled and disassembled in a minimally invasive fashion. The prosthesis comprises a first fixing element having an anchoring first face and a co-operation second face; a second fixing element having an anchoring first face and a co-operation second face; a first prosthesis element having an active first face and a co-operation second face, the co-operation faces of the first fixing element and the first prosthesis element serving to fasten the two elements together; a second prosthesis element having an active first face and a co-operation second face, the co-operation faces of the second fixing element and the second prosthesis element serving to fasten the two elements together; and each of the active faces of the prosthesis elements defining at least a portion of a spherical cap that is respectively concave or convex.

Abstract: An intervertebral implant for the lumbo-sacral joint is provided. The intervertebral implant comprises a spacer adapted to fit between the fifth lumbar vertebra and the sacral vertebra articulated thereto and a strap. The spacer comprises a body. The body comprises a top end face and a bottom end face opposite the top end face. The top end face comprises a groove that extends along a midplane of the spacer. The groove comprises a first side and a second side, wherein between the first side and the second side the groove is adapted to receive the spinous process of said lumbar vertebra. The bottom end face comprises a longitudinal housing. The longitudinal housing extends orthogonal to the groove. The longitudinal housing is adapted to receive and rest directly on a top portion of the sacral vertebra.

Abstract: The invention relates to an intervertebral implant comprising a spacer designed to be applied between two spinous processes of two vertebrae. The spacer comprises: two elements (10, 12) made of a first material, and each presenting a first end (10a, 12a) and a second end (10b, 12b), said first end (10a, 12a) being securable to a spinous process; and a connection piece (14) made of a second material of greater elastic deformability than said first material, said connection piece interconnecting said second ends (10b, 12b) of said two elements (10, 12) so that the stresses that are exerted on said two elements (10, 12) are damped, and said connection piece enabling said intervertebral implant to limit and brake the relative movements of said vertebrae.

Abstract: The invention relates to an intervertebral implant comprising a spacer designed to be applied between two spinous processes of two vertebrae. The spacer comprises: two elements (10, 12) made of a first material, and each presenting a first end (10a, 12a) and a second end (10b, 12b), said first end (10a, 12a) being securable to a spinous process; and a connection piece (14) made of a second material of greater elastic deformability than said first material, said connection piece interconnecting said second ends (10b, 12b) of said two elements (10, 12) so that the stresses that are exerted on said two elements (10, 12) are damped, and said connection piece enabling said intervertebral implant to limit and brake the relative movements of said vertebrae.