An expandable screw for orthopedic insertion and expansion between a collapsed state and an expanded state. The screw has an upper externally-threaded body segment, a lower externally-threaded body segment opposite the upper external thread segments, and an expansion member extending along a longitudinal axis thereof. The expansion member connecting the upper externally-threaded body segment to the lower externally-threaded body segment, and configured during the expansion between the collapsed state and the expanded state to separate the upper externally-threaded body segment from the lower externally-threaded body segment.

A fusion cage has a first component that defines an outside surface that is configured to engage a vertebral endplate, and an interior surface. The fusion cage has a second component that defines first and second opposed surfaces. One of the first and second opposed surfaces can mate with the interior surface of the first component. The fusion cage can include vertical and lateral throughholes adapted to enhance fusion.

An expandable includes a base member having a top surface and a bottom surface opposite the top surface, and an adjustable member adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position. The adjustable member has a top surface and a bottom surface opposite the top surface. The top surface of the adjustable member and the bottom surface of the base member form a first angle while the adjustable member is in the first, collapsed position, and the top surface of the adjustable member and the bottom surface of the base member form a second angle while the adjustable member is in the second, expanded position. The first angle is different from the second angle.

An expandable intervertebral implant having an upper body portion, a lower body portion opposite the upper body portion, a wedge member connecting the upper body portion to the lower body portion, a nose member having a tapered distal end and a proximal end opposite the distal end, and an actuator disposed between the nose member and the wedge member, for translation of the wedge member along a longitudinal axis of the implant. A pin connects to the actuator for positioning the nose member relative to the actuator. Translation of the wedge member along the longitudinal axis of the implant displaces the upper body portion and the lower body portion away from each other, thereby expanding the intervertebral implant.

A prosthetic hip joint implant comprises an acetabular liner having an acetabular liner inner surface and defining an acetabular recess, and a femoral component comprising a head having a head outer surface and defining a head recess, a shaft having a shaft proximal end and a shaft distal end disposed within the head recess, and a covering disposed on and fixedly secured to the head outer surface, the shaft distal end, head, and covering disposed within the acetabular liner recess such that the covering is in continuous contact with the acetabular liner inner surface. Polyaxial movement of the shaft distal end produces movement of the covering along the acetabular liner inner surface within the acetabular liner recess without producing relative movement between the covering and the head.

An expandable intervertebral cage device includes a first base plate and a second base plate, a distal block with an internal passage that mechanically couples to each base plate, and a proximal block comprising internal threading. The device has exactly two arm assemblies with one on each side. Each arm assembly comprises a first arm mechanically coupled to the first base plate and a second arm mechanically coupled to the second base plate. A screw is arranged partially within the internal threading of the proximal block and passes through the internal passage of the distal block, such that rotation of the screw relative to the distal block causes a change in distance between the distal block and the proximal block, and a corresponding change in the spacing and lordosis of the device.

A hybrid spinal implant for performing an intervertebral fusion procedure can include a pair of spacers separated by an expandable container that are formed of a porous titanium scaffold material. A connecting rod can span longitudinally between the pair of spacers. The spacers can be formed of titanium or PEEK, with endplates that are formed of the porous titanium scaffold material. The endplates can be bioactive. Exposed surfaces of the porous titanium scaffold material can be coated in a snag-preventing substance. The expandable container can be formed of a mesh material.

Various systems and methods are disclosed for joining multiple components of a prosthesis. For example, a system includes a first component having a body extending from a first end to a second end. Each of the first and second ends including a coupling element. At least one end including a male coupling element including a detent disposed within a hole defined by a protrusion, the detent being biased by a biasing member. A method includes coupling a first component to a second component. Coupling the first component to the second component includes aligning a female engagement element provided by the first component with a male coupling component provided by the second component and inserting the male coupling element into the female coupling element.

Prosthetic device (10) for temporomandibular joint comprising a first prosthetic component (11), able to be associated with a mandibular condyle (112) of a patient, and a coordinated second prosthetic component (12), able to be associated with a respective glenoid fossa of the patient.

The present invention also concerns a guide device (35) for making an anchoring seating (113) for positioning the first component, and a prosthetic assembly comprising the prosthetic device (10) and the guide device (35).

According to one aspect of the disclosure, a prosthetic implant system includes a first articulation component, a base, and a second anchor. The base may have a proximal portion and a first anchor extending in a distal direction along a longitudinal first anchor axis. The proximal portion of the base may be configured to couple to the first articulation component. The second anchor may be formed separately from the base and may extend along a longitudinal second anchor axis. The base may include a channel extending from a first opening in the proximal portion of the base through a second opening in a distal portion of the first anchor. The channel may be sized and shaped to receive the second anchor therethrough. When the second anchor is received within the channel, the longitudinal first anchor axis may be oblique to the longitudinal second anchor axis.