Stryker European Operations Limited

Vexim

Gianluca Maestretti

Yves-Alain Ratron

Jean-Francois Oglaza

Jean-François Oglaza

Jean-Franḉois Oglaza

Systems and methods for treating a vertebral body. An intravertebral implant includes an anterior end element and a plate comprising a planar bearing surface. The plate may be exactly two plates movable in only a cranio-caudal expansion plane. A pedicle fixation is coupled to the intravertebral implant and includes a hollow sleeve. The pedicle fixation is configured to be secured to the pedicle to control an insertion depth of the intravertebral implant within the vertebral body. A central traction member is movably disposed within the hollow sleeve of the pedicle fixation to deploy the planar bearing surface(s). The central traction member may be rotatable within the hollow sleeve. An expansion instrument may move the central traction member relative to the pedicle fixation. The intravertebral implant may be locked relative to the pedicle fixation in six degrees of freedom.

System including an intravertebral implant and a pedicle fixation for treating a vertebral body

Methods of deploying an intravertebral implant having an expandable anterior part, a posterior part coupled to the expandable anterior part, and a pedicle fixation element. The expandable anterior part is positioned within the vertebral body, and the posterior part may be positioned within the vertebral body. The pedicle fixation element is anchored to the vertebral body. The expandable anterior part is moved relative to the pedicle fixation element, for example, in two degrees of freedom. Movement in a first of the two degrees of freedom is independent from movement in a second of the two degrees of freedom. The expandable anterior part may be translated without being rotated along a main axis of the pedicle fixation element. Filling material may be injected through the posterior part. Rotational movements of the expandable anterior part relative to the pedicle fixation element may be locked.

Methods of deploying an intravertebral implant having a pedicle fixation element

The present invention relates to an expansible intravertebral implant system comprising an intravertebral implant () with an expandable anterior part (), which is expansible in a vertebral body, and a posterior part; and a pedicle fixation () having at least one hollow portion for receiving the posterior part. The present invention also relates to said expansible intravertebral implant system additionally comprising a posterior element (), arranged partially outside the vertebra and rigidly connected to the pedicle fixation (), for serving as an anchoring point for at least one intravertebral rod or at least one system of artificial ligaments.

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Wallenreid, Switzerland

Gianluca Maestretti