Glenoid implant for a shoulder prosthesis, and surgical kit

摘要

A glenoid implant for a shoulder prosthesis for implantation in the glenoid of a scapula according to embodiments of the present invention includes a central fixation element; an articular body configured for articulation with a humerus, the articular body comprising a plate, the plate comprising a side configured to be oriented toward the glenoid, the side comprising a central protrusion, wherein the central fixation element comprises a means for mechanically engaging with the central protrusion; a first means for locking rotation of the central fixation element with respect to the glenoid; and a second means for locking rotation of the articular body with respect to the glenoid.

主权项

1. A glenoid implant for a shoulder prosthesis for implantation in the glenoid of a scapula, the glenoid implant comprising:
a central fixation element having a proximal portion, an external surface, a longitudinal axis, and at least one feature extending outwardly from the external surface, each of the at least one feature extending about the longitudinal axis and being adapted to engage bone and translatably secure the central fixation element from pull-out relative to the glenoid; an articular body configured for articulation with a humerus, the articular body comprising a plate, the plate comprising a side configured to be oriented toward the glenoid, the side comprising a central protrusion defining a recess extending between a first end located adjacent to the plate and a second end opposite the plate, the recess having a constriction between the first end and the second end, the constriction having a first inner periphery, the second end defining an opening at a distal-most edge of the central protrusion, the opening having a second inner periphery larger than the first inner periphery, the opening configured to receive the proximal portion of the central fixation element, wherein the central fixation element comprises a means for mechanically engaging with the central protrusion, and the means for mechanically engaging with the central protrusion comprises a peripheral protrusion or a peripheral groove disposed in the recess and adapted to cooperate with, respectively, a peripheral groove or a peripheral protrusion disposed on the proximal portion of the central fixation element, and wherein the articular body is adapted to be mechanically engaged with the central fixation element after the central fixation element is secured relative to the glenoid; and a means for locking rotation of the articular body with respect to the glenoid.