A shoulder arthroplasty kit includes a humeral head component, a combination sizer and guide device substantially identical to the humeral component but including a including a guide bore, and a guide pin configured to be inserted into the resected surface of the humerus and configured to be guided by the guide bore to a center of the resected surface of the humerus which is covered by the at least one combination sizer and guide device.

A measurement device is disclosed that includes a first component having an outer surface having one or more flexible articular surfaces, and an inner surface having a first area having protrusions defining a polygon with a plurality of vertices. A load plate can be in contact with the first area. A printed circuit board can have a central section and a first lateral section. The first lateral section can have a sensor array having a plurality of sensors. Each sensor can be positioned in alignment with a vertex of the polygon and having a load pad in contact with a lower surface of the rigid load plate. A reference sensor can be spaced from the lower surface of the load plate.

Medical devices and connector assemblies for connecting medical devices are disclosed. An example connector assembly for connecting a robotic arm with a medical end effector may include a plate configured to be coupled to a robotic arm. The plate may have a connection region that includes a flange defining a circumferential groove. The connector assembly may also include an attachment assembly having an attachment region configured to be detachably secured to the connection region with a securing distance of less than 12 millimeters. The attachment region may include one or more engagement members that are configured to shift between an unsecured position and a secured position where the engagement members are secured to the connection region. An actuator may be coupled to the attachment assembly for shifting the one or more engagement members between the unsecured position and the secured position.

The method of fitting a knee prosthesis in a knee of a patient includes displaying, by a visual display device of a mobile augmented reality navigation system worn or carried by a user performing or assisting at least one navigation-assisted stage of the method, at least one visual element superposed on a view of at least a portion of a surgical scene of the fitting of the knee prosthesis. The visual element can be a 3D model of at least one portion of the knee of the patient, a 3D model of another component of the surgical scene, information relative to the at least one portion of the knee of the patient, and/or information relative to the other component of the surgical scene.

Piezoelectric osteotomy devices and corresponding systems and methods for removing an acetabular cup or shell from a patient's acetabulum are disclosed. In one embodiment, the piezoelectric osteotomy device includes a piezoelectric element to actuate a cutting tip on an armature. In some such embodiments, the cutting tip may be extended and/or retracted to facilitate cutting of bone around an acetabular cup. The armature may include a fluid output port located proximate the cutting tip to mitigate heat generated by the cutting tip. In one embodiment, the piezoelectric osteotomy device is arranged and configured to provide constant current adjustment.

A plate and cage assembly for stabilization of vertebral bodies. The assembly includes at least one fixation member, a cage having a proximal wall, a superior surface and an inferior surface (the superior surface and the inferior surface for engaging adjacent vertebrae), and a plate coupled to the cage and having at least one hole traversing the plate at an angle for insertion of the at least one fixation member into one of the vertebral bodies. The proximal wall of the cage has a blind hole, and the plate has a threaded screw hole aligned with the blind hole in the proximal wall of the cage.

Disclosed herein are a system and method for attaching an implant, such as an acetabular cup, to an adapter connector without requiring rotation of the connector or the implant, to allow for easy connection, manipulation, and insertion of the implant into a patient. An adapter connector or adapter inserter can include a collet and a collet spreader. The collet can include an exterior surface and an interior surface. The exterior surface can define a protuberance sized to engage an indentation in an adapter. The interior surface can define a collet cavity. The collet spreader can be located at least partially within the collet cavity. The collet spreader can include a flared surface and an engagement surface. The flared surface can be located at a first end of the collet spreader and arranged to engage the interior surface of the collet so as to cause the collet to expand.

A stemless humeral head replacement system including a base plate and a humeral head implant. The base plate includes a bone facing side, an implant side opposite the bone facing side, a curvate perimeter, at least one fin protruding from the bone facing side a first distance and extending linearly a length along the bone facing side, and an implant engagement structure on the implant side. The humeral head implant includes a curvate implant surface and a base plate engagement structure opposite the curvate implant surface, the base plate engagement structure configured to couple to the implant engagement structure of the base plate.

The present disclosure includes apparatuses for a bone graft harvesting device. An example apparatus includes a blade tip including a proximal end and a distal end, wherein the distal end of the blade tip includes a number of blades configured to morcellate bone in response to being rotated and a lead tip located within the blade tip and configured to maintain the bone graft harvesting apparatus centered on a bone graft punch hole.

A nuclear disc implant includes an inner fillable enclosure and an outer fillable enclosure. After insertion into a enucleated disc cavity, the inner enclosure is filled with a fluid and the outer fillable enclosure is filled with a curable material. The curable material is allowed to cure and the fluid is removed from the inner enclosure to leave an inner enclosure surrounded by an cured outer enclosure. A reinforcing band may be provided around the nuclear disc implant. An inflation tool to fill the nuclear disc implant is provided.