A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.

Spinal implant trials are provided having various configurations and sizes that aid the selection of spinal implants having similar configurations and sizes. A surgeon during surgery can insert various configurations and sizes of the spinal implant trials into a disc space between two adjacent vertebral bodies of a patient to enable the selection of a spinal implant configured and sized to fit the patient's disc space. Fluoroscopic images can be used in aiding the selection of an appropriately configured and sized spinal implant corresponding to one of the spinal implant trials. The spinal implant trials include features that reveal on the fluoroscopic images whether the spinal implant trials are properly located and oriented in the disc space and include features corresponding to different sizes of spinal implants also revealed on the fluoroscopic images.

An expandable spinal implant includes a distal projection extending from only one side of the implant, ending in an anterior tip, the anterior portion and anterior tip defining an elongated distal end hook, which is wider than the proximal end. The distal end hook rotates around the spinal cord, aligning the implant with a desired pathway, then inserts into place in the disc space between the vertebrae. The elongated widened distal end hook provides a TLIF approach, distributes loads, provides anterior rim engagement, and creates lordosis.

An arrangement for the preparation of the proximal surface of the tibia and/or the proximal surface of the distal end of the femur and the posterior femoral condyle for a tibia component and/or a femoral component of a prosthetic knee joint. The arrangement includes an electronic system arrangement that receives or measures data information to which the electronic system can utilise this information to communicate control of a blade and/or cutting implement to resect the proximal surface of the tibia and/or distal end of the femur and/or the posterior femoral condyle to required reference plane cuts that provide for balanced angular movement between the femoral component and the tibia component of the prosthetic knee joint throughout an arc of motion from extension, mid-flexion and flexion.

An expandable spinal implant includes a distal projection extending from only one side of the implant, ending in an anterior tip, the anterior portion and anterior tip defining an elongated distal end hook, which is wider than the proximal end. The distal end hook rotates around the spinal cord, aligning the implant with a desired pathway, then inserts into place in the disc space between the vertebrae. The elongated widened distal end hook provides a TLIF approach, distributes loads, provides anterior rim engagement, and creates lordosis.

An expandable implant includes an upper main support of bone, a lower main support coupled to the upper main support, the lower main support comprising a first coupling feature and a second coupling feature being substantially parallel to the first coupling feature, and a control assembly configured to control relative movement between the upper main support and the lower main support, the control assembly including a first control member configured to engage the upper main support and the lower main support and interface with the first coupling feature a second control member configured to engage the upper main support and the lower main support and interface with the second coupling feature, and a control shaft configured to be received by the first control member and the second control member, wherein manipulation of the control shaft causes relative movement between the upper main support and the lower main support.

The present invention relates to an implant (1) for the correction of gleno-humeral instability, in particular for the correction of a glenoid defect (Dg) of the glenoid (G) of a patient, said implant (1) having a substantially J shape with a wedge portion (2) substantially transversal to a substantially flat portion (3), said wedge portion (2) being suitable for being inserted in the bone channel (Cg) obtained in the glenoid (G) of a patient, said substantially flat portion (3) being suitable, when said implant (1) is in use, for being placed at the site of the glenoid defect (Dg) in contact with the external bone portion of the glenoid (G) of a patient, said implant (1) being characterized in that it comprises a first element (4) made of organic material corresponding at least to the flat portion (3) of the implant (1), and a second element (5) made of rigid biocompatible material corresponding to at least the wedge portion (2) of the implant (1) and coupled to said first element (4).

A modular surgical instrument for knocking out or implanting a prosthesis that defines a prosthesis axis and which has a prosthesis neck includes a tool head with a passthrough for accommodating the prosthesis neck, a locking device for locking the mounted prosthesis neck, and a chuck, which has an axis for transferring a clamping force for the locking device. The passthrough and the chuck are arranged on opposite ends of the tool head relative to a lengthwise direction defined by the axis of the chuck, wherein the passthrough defines a passthrough axis which coincides substantially with the prosthesis neck axis when the prosthesis neck is locked in place. The axis of the chuck is at a distance from a plane defined by the lengthwise direction and the passthrough axis and/or is at a distance from a passthrough lengthwise axis that extends in the lengthwise direction and through the passthrough.

A partial endoprosthesis device preserves the motion of a vertebral joint for implant into a spinal segment and includes an articular portion having a thickness that increases in the direction of introduction between the articular facets. The articular portion is elongated along a longitudinal axis with a opposite first and second faces. The first face has a central protrusion that is configured so that, by implanting the device with the articular portion inserted between an upper articular facet of a lower vertebra and a corresponding lower articular facet of upper vertebra adjacent to the lower vertebra, and with the first face in contact with either the upper or lower articular facet, and with the second face in contact with the other articular facet, the articular portion, with the first face, pushes against the first articular facet and finally becomes integral by osteointegration with the lower articular facet.

A facet joint replacement system includes a facet joint replacement device including an enclosing body and an articulating body. The enclosing body includes an interior surface defining an inner cavity of the enclosing body. The interior surface includes a first articulating surface and a projection extending inwardly relative to a surrounding area of the interior surface. The articulating body is positioned within the inner cavity of the enclosing body and is configured to move within the enclosing body. The articulating body includes a second articulating surface and a recess extending inwardly relative to a surrounding area of the articulating body and aligned with the projection of the interior surface of the enclosing body so as to allow movement of the projection along the recess of the enclosing body while constraining rotational motion of the articulating body within the enclosing body.