Apparatus and methods for replacing a knee joint with an implant prosthesis are described. The method includes distracting the knee, locating the pre-diseased joint line of the knee and referencing cuts to the femur and tibia in the coronal plane relative to the joint line. The method further comprises determining the posterior slope of a cut to the tibia in the sagittal plane such that the gaps between the tibia and femur in extension and flexion are substantially equal. Apparatus for use in the method is described, including a distractor for distracting the joint, a joint level finder for finding the pre-diseased joint line and a flexion gap optimisation device.

A unicompartmental orthopedic knee implant may include a tibial tray having a body including a joint-facing side, a bone-facing side opposite the joint-facing side, and a channel provided in the bone-facing side. The bone-facing side includes a bottom surface and a bone-contacting layer applied to the bottom surface. The bone-contacting layer configured to contact a tibia. The channel extends through the bone-contacting layer. The tibial tray may also include a protrusion for insertion into a corresponding opening in the tibia, the protrusion extending from the bottom surface at a non-zero angle. The implant may also include a fixation element coupled to the bone-facing side of the body. The fixation element may include a rail for insertion into the channel of the body, a support extending from the rail, and a bone engagement feature connected to the support, the bone engagement feature including an edge operable to penetrate the tibia.

The present invention relates to a method of inserting an implant comprising providing an expandable vertebral implant. The method further may comprise providing an angling inserter tool. The angling inserter tool comprises a handle portion, a base portion, and a tip assembly, the base portion being disposed between the handle portion and the tip assembly. The method further may comprise distally advancing a central shaft of the tip assembly with rotation into an opening in the expandable vertebral implant to secure the angling inserter tool to the expandable vertebral implant. The method further may comprise positioning the expandable vertebral implant in a patient's spine. The method further may comprise for causing the tip assembly to angulate with respect to a longitudinal axis of the angling inserter tool, wherein the internal shaft is coaxial with an outer cylinder of the base portion.

The present invention relates to a method of inserting an implant comprising providing an expandable vertebral implant. The method further may comprise providing an angling inserter tool. The angling inserter tool comprises a handle portion, a base portion, and a tip assembly, the base portion being disposed between the handle portion and the tip assembly. The method further may comprise distally advancing a central shaft of the tip assembly with rotation into an opening in the expandable vertebral implant to secure the angling inserter tool to the expandable vertebral implant. The method further may comprise positioning the expandable vertebral implant in a patient's spine. The method further may comprise for causing the tip assembly to angulate with respect to a longitudinal axis of the angling inserter tool, wherein the internal shaft is coaxial with an outer cylinder of the base portion.

An adjustable spinal fusion intervertebral implant is provided that can comprise upper and lower body portions that can each have proximal and distal wedge surf aces disposed at proximal and distal ends thereof. An actuator shaft disposed intermediate the upper and lower body portions can be actuated to cause proximal and distal protrusions to converge towards each other and contact the respective ones of the proximal and distal wedge surfaces. Such contact can thereby transfer the longitudinal movement of the proximal and distal protrusions against the proximal and distal wedge surfaces to cause the separation of the upper and lower body portions, thereby expanding the intervertebral implant. The upper and lower body portions can have side portions that help facilitate linear translational movement of the upper body portion relative to the lower body portion.

An orthopaedic surgical instrument system includes a hinged tibial insert trial and a tibial base trial. A post adapter is sized to be positioned over a post of the tibial base trial and to be positioned in a central opening defined in the hinged tibial insert trial. The hinged tibial insert trial includes a housing configured to be received in a femoral component and a button mechanism to selectively secure the hinged tibial insert trial to the femoral component. The system may include a shim trial sized to be attached to an inferior surface of the hinged tibial insert trial.

An implant device for use in achieving spinal fusion, includes an implant having an implant body. The device includes a graded radiopacity calibration tool integrated with the implant body. The tool has a plurality of graded levels of radiopacity representative of a range of bone density parameter amounts. Each of the graded levels corresponds to a different bone density parameter amount. A method is provided that uses the device to determine a degree of one of bone maturity, strength, osteoporotic state, state of healing and state of degrading bone tissue based on a comparison of a bone at the site in the image and radiopacity correlated from a calibration standardized curve defined by the standard, with a range of grey levels representative of degrees of one of the bone maturity, the strength, the osteoporotic state, the state of healing and the state of degrading bone tissue.

Methods for total ankle replacement procedures are disclosed. A method includes making an initial incision, obtaining an alignment guide, performing an alignment, performing a tibia and talar resection, trialing the implant components, performing a talar chamfer resection, and implanting the components.

An orthopaedic surgical system includes a sensor module for determining the joint force of a patient's knee joint and an adaptor for coupling various tibial trialing components to the sensor module. The sensor module includes a tibial paddle to which the adaptor is configured to couple. The adaptor and tibial paddle include structures that control the orientation at which the adaptor is attachable to the tibial paddle. Some tibial trialing components may be positioned over the adaptor in a mobile orientation that facilities rotation of the tibial trialing component relative to the tibial paddle or a fixed orientation that restricts the rotation of the tibial trialing component.

In one embodiment, an intervertebral trial includes a front surface, a top surface, a bottom surface, a first side surface and a second side surface that collectively define an internal space. The internal space includes at least one marker structure attached to at least one of the top surface, the bottom surface, the first side surface and the second side surface. The at least one marker structure indicates a dimension of the intervertebral trial. Additionally, the at least one marker structure is spatially representative of the dimension when measured relative to one of the front surface, the top surface, the bottom surface, the first side surface or the second side surface.