An instrument assembly for a shoulder arthroplasty that can comprise: a cut guide having a slot for aiding a resection of a head of a humerus; and a positioning assembly configured to position the cut guide relative to the head of the humerus, wherein the positioning assembly is configured to couple to a reamer. The positioning assembly can comprise: a boom configured to position the cut guide relative to the reamer and the head of the humerus along a first axis; and an arm coupled to the cut guide and configured to be moveable to position the cut guide relative to the head of the humerus about the reamer in a second axis.

A reverse shoulder system can include, for example, a glenoid baseplate comprising a longitudinal axis, the glenoid baseplate further including a stem and a central channel within a sidewall of the stem. The stem can include a longitudinal axis. The longitudinal axis of the glenoid baseplate can be angled with respect to the longitudinal axis of the stem, wherein the longitudinal axis of the glenoid baseplate is not perpendicular with respect to the longitudinal axis of the stem. Other components including a glenosphere, tools, and methods of use are also disclosed.

A coracoid guiding system. The coracoid guiding system includes a coracoid grasper for holding an exteriorized coracoid bone block, and a coracoid passer. The coracoid passer has a pair of external barrels, a pair of internal barrel pins, a hollow guiding tube including an inner surface and an outer surface, and a hook gauge. The hook gauge is configured to be retractably arranged inside the hollow guiding tube. The hook gauge has a proximal end, a distal end, a curved section between the proximal end and the distal end, a first straight section extending from the proximal end to the curved section, a second straight section extending from the curved section to the distal end, wherein the distal end of the hook gauge is shaped as a hook.

A kit including (1) a plate configured to be secured to a scapular spine with a first end of the plate near a trigonum and a second end of the plate near an acromion; (2) a first hook including a mount, a first hook portion extending from the mount in a first direction, a spacer extending from the first hook portion in a transverse direction, and a second hook portion extending from an opposite end of the spacer in the first direction, the first hook adapted to extend around a lateral end of the acromion when fixed to the second end of the plate; and (3) a second hook including a mount, a curved portion curving away from the mount, and a hook portion at an opposite end of the curved portion, the second hook adapted to extend around the trigonum when fixed to the first end of the plate.

A humeral head implant system includes a head component including a first articulating surface, a second bottom surface extending from the first spherical articulating surface, a first cavity extending a first distance into the head component from the second bottom surface, and a second cavity extending into the head component along a cavity axis. The head component defines a head axis extending through a center of the first articulating surface parallel to the cavity axis. A base component defines a slot extending from a first width to a second width. An insert component includes an insert body, a first engagement feature, and a slot engagement feature. The first engagement feature is received in the second cavity along the cavity axis. The insert body has an insert thickness less than the first distance, and the slot engagement feature slides into the slot in a direction transverse to the cavity axis.

This disclosure relates to planning systems, assemblies and methods. The planning systems, assemblies and methods disclosed herein may be utilized for planning and implementing orthopaedic procedures to restore functionality to a joint, and may include one or more transfer members for positioning implants relative to patient anatomy.

Instruments and methods for surgical transosseous attachment to a bone include a guide able to guide the formation of intersecting bone tunnels and a passer able to pass a member through the bone tunnels.

A guide apparatus for a surgical cutting tool includes a plurality of plates arranged in parallel with a guide plane. The plates form opposing bearing surfaces spaced apart over a clearance distance that defines an opening. A sheath includes a cylindrical portion that extends along a longitudinal axis and forms an interior passage extending through cylindrical portion along the longitudinal axis. The cylindrical portion of the sheath slidably engages the opening through the clearance distance, and the interior passage of the sheath receives a rotary cutting head of the surgical cutting tool in an operating configuration.

One embodiment of the present disclosure provides a humeral implant. The humeral implant includes a tray including a body defining a bone facing recess and a liner recess, said bone facing recess including a ring surface and a convex surface, wherein the ring surface has a profile substantially corresponding to a profile of an outer ring of bone in an excision site of a patient; and wherein said convex surface has a profile substantially corresponding to a profile of a concave socket formed in the excision site. The humeral implant also includes a liner including a body defining a load bearing surface and a tray interface surface, said tray interface surface being configured to be at least partially received in said liner recess of said tray such that said implant is coupled to said tray.

A patient-specific guide tool for guiding an object toward a glenoid face of a scapula of a patient for implantation of a shoulder prosthetic device is disclosed. The guide tool includes a guide portion that includes a guide surface. The guide surface is configured to guide movement of the object toward the glenoid face. Furthermore, the guide tool includes a patient-specific portion that is operably coupled to the glenoid portion. The patient-specific portion includes at least one patient-specific surface that is three-dimensionally contoured and that is configured to nest and closely conform to a corresponding surface of the scapula to thereby position the guide surface at a predetermined position relative to the glenoid face.