Orthopaedic implant systems including transfer features and methods for plan transfer
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.
1 . An orthopaedic implant comprising:
a baseplate including a plate body extending along an implant axis between a front face and a rear face;
an augment extending outwardly from the rear face of the baseplate, the augment dimensioned to contact bone; and
one or more transfer members extending from the augment and coupled to the augment at a respective breakable connection, wherein the one or more transfer members are configured to contact bone, and wherein the one or more transfer members include a first portion extending radially outward from a periphery of the augment relative to the implant axis and a second portion extending axially from the first portion relative to the implant axis.
2 . The implant as recited in claim 1 , wherein the one or more transfer members are dimensioned based on a predetermined surgical plan.
3 . The implant as recited in claim 1 , wherein the one or more transfer members are integrally formed with the augment.
4 . The implant as recited in claim 1 , wherein the augment is formed along the baseplate.
5 . The implant as recited in claim 1 , wherein the breakable connection is configured to sever in response to a predetermined quantity of torque at an interface.
6 . The implant as recited in claim 5 , wherein the breakable connection is configured to sever in response to the predetermined quantity of torque in a first rotational direction with respect to an axis extending through the interface, but not a second rotational direction opposed to the first rotational direction.
7 . The implant as recited in claim 1 , wherein the one or more transfer members include a plurality of transfer members circumferentially distributed about the periphery of the augment.
8 . The implant as recited in claim 7 , wherein each of the transfer members includes a terminal end portion configured to contact tissue.
9 . The implant as recited in claim 8 , wherein the breakable connection is configured to sever in response to a predetermined quantity of torque in a first rotational direction with respect to an axis extending through the second portion, but not a second rotational direction opposed to the first rotational direction.
10 . The implant as recited in claim 1 , wherein the baseplate includes a central aperture and a plurality of peripheral apertures circumferentially distributed about the central aperture, the peripheral apertures are aligned with respective passages through the augment and are dimensioned to receive respective fasteners partially receivable through the respective passages and into bone.
11 . The implant as recited in claim 10 , wherein the central aperture is dimensioned to receive a guide pin insertable into bone to set a position of the implant.