System for orthopedic implantation preparation
A system for preparing a bone for implantation of a component of an orthopedic implant device. The system includes a forming tool having a sleeve member that is selectively received within a handle member. The sleeve member has a guide slot that is sized to receive axial passage of at least a portion of a guide. The guide slot and/or sleeve member may be positioned and/or configured to facilitate at least linear and/or rotational displacement of the forming tool about, or relative to, the guide, and thereby provide a degree of freedom in the location at which the forming tool may form a shape or opening in the bone relative to one or more reference axes. The handle member may include a connection member that is structured to be operably coupled to a bone preparation device that is structured to facilitate the displacement of bone material.
1 . A system for orthopedic implantation preparation, the system comprising:
an elongated guide arranged and configured to be inserted into a patient's bone, the elongated guide having a longitudinal guide axis;
a forming tool arranged and configured to receive at least a portion of the elongated guide, the forming tool including an elongated bore;
a first sleeve member selectively receivable within the elongated bore of the forming tool and having a first elongated guide slot for receiving the elongated guide therein, the first elongated guide slot including a first guide slot axis that is offset from the longitudinal guide axis by a first distance when the elongated guide is received within the first elongated guide slot; and
a second sleeve member selectively receivable within the elongated bore of the forming tool and having a second elongated guide slot for receiving the elongated guide therein, the second elongated guide slot including a second guide slot axis that is offset from the longitudinal guide axis by a second distance when the elongated guide is received within the second elongated guide slot;
wherein the first distance is different than the second distance; and
wherein the first sleeve member and the second sleeve member are configured to be selectively attached to the forming tool to enable and selectively control the displacement of a position of the forming tool relative to the longitudinal guide axis.
2 . The system of claim 1 , wherein:
the forming tool includes a proximal end and a distal end;
the distal end comprises a bone preparation device for forming a bore into the patient's bone for receiving a stem portion of a knee prosthesis; and
the displacement of the position of the forming tool relative to the longitudinal guide axis enables selective adjustment of a location of the bore.
3 . The system of claim 2 , wherein the bore is an augment opening having a depth extending into the patient's bone, the augment opening being arranged and configured to receive therein an augment associated with the knee prosthesis, such that a central augment axis of the augment is offset from the longitudinal guide axis.
4 . The system of claim 3 , wherein selective adjustment of the displacement of the location of the bore enables a distance between the augment and a stem and/or a tibial tray associated with the knee prosthesis to be altered.
5 . The system of claim 1 , wherein:
the first sleeve member and the second sleeve member each include a guide body with an outer wall;
the first elongated guide slot extends through at least a portion of the outer wall of the first sleeve member; and
the second elongated guide slot extends through at least a portion of the outer wall of the second sleeve member.
6 . The system of claim 5 , wherein:
the first elongated guide slot of the first sleeve member is arranged and configured to receive at least a portion of the elongated guide therethrough; and
the second elongated guide slot of the second sleeve member is arranged and configured to receive at least a portion of the elongated guide therethrough.
7 . The system of claim 1 , further comprising:
a handle member having an inner area sized to receive insertion of at least a portion of the first sleeve member or the second sleeve member, the handle member having a connection member structured to be coupled to a bone preparation device; and
a retention member adapted to selectively secure the first sleeve member or the second sleeve member to the handle member at a selected one of a plurality of rotational positions, each of the plurality of rotational positions adjusting an angular position relative to the handle member of whichever of the first sleeve member and the second sleeve member is attached to the forming tool.
8 . The system of claim 7 , wherein:
the handle member comprises one or more projections;
the first sleeve member and the second sleeve member each comprise one or more recesses; and
the retention member comprises a mating engagement between the one or more projections of the handle member and the one or more recesses of whichever of the first sleeve member and the second sleeve member is attached to the forming tool.
9 . The system of claim 7 , wherein:
the handle member comprises one or more recesses;
the first sleeve member and the second sleeve member each comprise one or more projections; and
the retention member comprises a mating engagement between the one or more recesses of the handle member and the one or more projections of whichever of the first sleeve member and the second sleeve member is attached to the forming tool.
10 . The system of claim 9 , wherein:
the one or more projections of the comprise a pin that extends from the first sleeve member or the second sleeve member;
the one more recesses comprises a plurality of recesses in the handle member; and
each of the plurality of recesses is structured to receive selective insertion of at least a portion of the pin.
11 . The system of claim 7 , wherein the handle member comprises a selector hub having a plurality of indexes indicative of one or more of the plurality of rotational positions.
12 . The system of claim 11 , wherein the first sleeve member and the second sleeve member each include an indicator that, when whichever of the first sleeve member or the second sleeve member that is attached to the forming tool is selectively secured to the handle member by the retention member, generally aligns with at least one of the plurality of indicia to indicate which one of the plurality of rotational positions is selected.
13 . The system of claim 7 , wherein:
the connection member comprises a first arm and a second arm;
the first and second arms each extend from a distal end of the handle member; and
the first and second arms are configured to securely engage the bone preparation device.
14 . The system of claim 13 , wherein:
the connection member comprises an adjustable slide that is coupled to the first and second arms; and
the first and second arms are configured to be axially displaced by axial displacement of the adjustable slide along at least a portion of the handle member.
15 . The system of claim 14 , wherein:
the adjustable slide is configured for rotational displacement about at least a portion of the handle member;
the first and second arms each include a base portion and an arm extension;
the arm extension of the first arm is generally perpendicular to the base portion of the first arm and is structured to be received in an undercut of the bone preparation device; and
the arm extension of the second arm is generally perpendicular to the base portion of the second arm and is structured to be received in an undercut of the bone preparation device.
16 . A method of preparing a patient's bone to receive an orthopedic implant, the method comprising:
inserting an elongated guide into the patient's bone, the elongated guide including a longitudinal guide axis;
providing a forming tool including an elongated bore;
selectively inserting within the elongated bore of the forming tool either of:
a first sleeve member including a first elongated guide slot, the first elongated guide slot including a first guide slot axis that is offset from the longitudinal guide axis by a first distance when the elongated guide is received within the first elongated guide slot; and
a second sleeve member including a second elongated guide slot, the second elongated guide slot including a second guide slot axis that is offset from the longitudinal guide axis by a second distance when the elongated guide is received within the second elongated guide slot, the second distance being different than the first distance;
forming a bore within the patient's bone via the forming tool;
wherein the first sleeve member and the second sleeve member are selectively receivable within the elongated bore of the forming tool to enable and selectively control a displacement of a position of the forming tool relative to the longitudinal guide axis.
17 . The method of claim 16 , further comprising:
inserting a stem portion of a knee prosthesis within the bore formed within the patient's bone;
wherein the displacement of the position of the forming tool relative to the longitudinal guide axis enables selective adjustment of a location of the stem portion.
18 . The method of claim 17 , further comprising a tibial tray coupled to the stem portion of the knee prosthesis, wherein a central longitudinal axis of the tibial tray is offset from a longitudinal axis of the stem portion.
19 . The method of claim 18 , wherein the bore is an augment opening having a depth extending into the patient's bone, the method further comprising inserting an augment that is associated with the knee prosthesis into the augment opening.
20 . The method of claim 19 , wherein a central longitudinal axis of the augment is offset from both the longitudinal axis of the stem portion and the central longitudinal axis of the tibial tray.