An adjustable spinal implant includes a lower body, an upper body, a locking pawl, and a locking key. The upper body and the lower body are pivotable relative to one another between a collapsed position and an expanded position. The upper body includes a locking flange that extends towards the lower body. The locking pawl is coupled to the lower body and is moveable between a locked position such that the upper and lower bodies are fixed relative to the one another and an unlocked position such that the upper and lower bodies are moveable relative to one another. The locking key is moveable between a locked state such that the locking pawl is fixed in the locked position and an unlocked state wherein the locking pawl is moveable between the locked position and the unlocked position.

Devices and methods for orthopedic support are disclosed. The device can have a first rigid section hingedly attached to a second rigid section. The device can be curved or rotated around obstructions along an access path to a target site. The device can be delivered to an intervertebral location in a patient.

Interbody fusion devices, insertion tools, methods for assembling an interbody fusion device, and methods for inserting a medical device between two vertebral bodies are disclosed. The interbody fusion device includes a base member, a top member, and at least one movement mechanism. The base member includes at least one of a pivotal cylinder and a hinge channel. The top member includes at least one of a pivot cylinder and a hinge channel. The at least one pivot cylinder of the base member engages the at least one hinge channel of the top member and the at least one pivot cylinder of the top member engages the at least one hinge channel of the base member. The at least one movement mechanism engages the top member and the base member. Also disclosed are a vertebral spacer device and an interbody spacer system including an insertion tool and an interbody fusion device.

Expandable spinal fusion devices, systems, and methods of using them are provided, and they can be inserted in a subject in a collapsed state through a small surgical corridor, and the expand cephalocaudal only, transverse only, or in both directions, in which direction of expansion can also be obtained independently, if desired, after the insertion. These inventions are valuable in reducing risk and surgical complexity, allowing for an on-the-fly selection of a desirable width footprint, a desired control of height expansion through a gradual cephalocaudal expansion, and a desired control of the alignment of the adjacent vertebral bodies. Devices, systems, and methods are also offered to provide a desired control of the contact area desired between the device and the upper and lower vertebral endplates achieved, for example, using an interdigitated endplate system.

The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. The fusion device described herein is capable of being installed inside an intervertebral disc space at a minimum to no distraction height and for a fusion device capable of maintaining a normal distance between adjacent vertebral bodies when implanted.

A distally expanding facet joint implant and delivery device for distally distracting a facet joint. The facet joint implant generally includes an outer part and an inner part. The outer part includes a pair of opposed distally expandable facet plates connected by a hinge. The inner part includes a wedge that is selectively movable against the facet plates to distally expand and contract the facet joint implant into open and closed states. Teeth on the outer part engage indents on the inner part to maintain the facet joint implant in the distally expanded state. The outer and inner parts include outer and inner connectors, and the delivery device includes corresponding outer and inner connectors adapted to be in locked engagement with the outer and inner connectors to hold the implant and selectively cause it to distally expand and contract.

An implantable knee prosthesis comprising a femoral stem component, a tibial stem component and a hinged joint having at least one hinge pivot point and an axis of limited rotation, the implantable knee prosthesis having a prosthetic extensor system configured to simulate a level of natural movement for patients with compromised extensor systems.

Surgical instrumentation may be used to insert a spinal implant into an intradiscal space while in a non-deployed condition and then deploy the spinal implant within the intradiscal space.

A bone joint spacer has two endplates which have a bone engaging surface on one side, and ramps extending from an opposite side. A shaft has a threaded end, and another end which has ramp followers which mate with the endplate ramps of both endplates. A collar slides over the threaded end of the shaft, and also has ramp followers which mate with the endplate ramps of both endplates. A nut threads onto the end of the shaft and pushes the collar towards the ramp followers of the shaft. This movement causes the ramp followers to slide the ramp followers of the collar and the shaft against the endplate ramps, pushing the endplates apart. Two of these spacers can be combined by a link plate so that the spacers can be aligned or curved into a U-shape to be inserted into the body and positioned between bony surfaces, respectively.

A prosthetic total knee replacement system comprises a distal femoral implant component, a tibial tray implant component and a fixed bearing tibial tray insert. The fixed bearing tibial tray insert is fixed to the tibial tray and articulates with the distal femoral implant component. The fixed bearing tibial tray insert component has a medial-lateral centerline and a stabilizing post. The stabilizing post has a medial-lateral centerline offset laterally from the medial-lateral centerline of the fixed bearing tibial tray insert.