Depuy Orthopaedics, Inc.

Depuy

Dupuy Inc.

Deputy Products, Inc.

Charles A Rockwood, Jr

Jeffrey Michael Ondrla

Brian J Maroney

Reese K Myers

Michael A Wirth

Jack F Long

Jon C Serbousek

Thomas S Camino

John A Engelhardt

Jeffrey M Ondrla

David A Susaraba

A medical procedure includes providing a prosthesis which includes (i) a body portion having a rear surface and a bearing surface, and (ii) an anchor peg including a shaft extending from the rear surface of the body portion, wherein the anchor peg includes a plurality of outwardly extending fins secured to the shaft, and further wherein the plurality of outwardly extending fins each possesses a first diameter. The medical procedure further includes creating an anchor hole in a natural bone, the anchor hole possessing a second diameter which is less than the first diameter. In addition, the method procedure includes positioning the anchor peg within the anchor hole so that each of the plurality of outwardly extending fins deforms so as to possess (i) a concave side which faces an open end of the anchor hole, and (ii) a convex side that faces a closed end of the anchor hole.

Method for securing a glenoid component to a scapula

A shoulder prosthesis of the present invention includes a modular humeral prosthesis component employing a collarless design. A body portion of the prosthesis is provided without a collar, and it may be implanted into a prepared proximal end of a humerus such that the body sits recessed below the level of the cut proximal surface of the humerus. A head portion is provided in which a support surface of the head functions as collar by direct apposition of it to the cut proximal humerus. The modular connection is thus recessed below the proximal bone surface. By providing a modular connection which is recessed below the bone surface, the benefits of modularity may be retained, while joint overstuffing may be reduced or eliminated, and a substantially full range of motion may be achieved.

Collarless shoulder arthroplasty prosthesis

A glenoid component for securement to a glenoid surface of a scapula so as to provide a bearing surface for a head portion of a humerus includes a body portion having a first surface configured to contact the glenoid surface of the scapula and a second surface configured to receive the head portion of the humerus. The glenoid component also includes an anchor peg extending from the first surface of the body portion for penetrating the glenoid surface of the scapula so as to secure the body portion to the glenoid surface of the scapula. The anchor peg has a first end portion and a second end portion with the first end portion of the anchor peg being secured to the first surface of the body portion, and the second end portion of the anchor peg having a number of fins secured thereto. The glenoid component also includes a first stabilizing peg extending from the first surface of the body portion for penetrating the glenoid surface of the scapula so as to prevent movement of the body portion relative to the glenoid surface of the scapula. A method of securing a glenoid component to a glenoid surface of a scapula so as to provide a bearing surface for a head portion of a humerus is also disclosed.

Apparatus and method for securing a cementless glenoid component to a glenoid surface of a scapula

An apparatus for positioning a prosthesis in a bone includes a body, first and second clamps, a depth gauge and a guide. The first clamp is coupled to the body. The depth gage is coupled to the body and is movable relative thereto generally perpendicular to the shaft of the bone. The second clamp can be selectively engaged with and disengaged from the depth gage. The second clamp is movable with the depth gage and is also moveable in a direction generally parallel to the axis of the bone. The guide is used to determine the proper rotational orientation of the apparatus. The first clamp is then secured to the bone. The second clamp is secured to a trial prosthesis and is engaged with the depth gage as the trial is inserted into the bone. When the proper insertion depth is reached, the second clamp is secured to the depth gage. The joint is then reduced and the range of motion checked. The depth and rotational orientation may be adjusted as needed. The second clamp is released from the trial, the trial is removed and the prosthesis is inserted in the bone and secured to the second clamp.

Prosthesis positioning apparatus

A shoulder prosthesis including a fracture stem has body having an exterior surface, a shank attached to the body and a head. The body includes a medial fin, an anterior fin and a posterior fin. The medial fin includes a suture hole. The anterior and posterior fins each include a plurality of suture holes. The prosthesis further includes a lateral suture hole intersecting the exterior surface of the body. The lateral suture hole may be formed in a projection on the lateral side of the prosthesis. In an alternative embodiment, a trail prosthesis includes indicia for noting the proper placement of the stem. The prosthesis includes corresponding indicia for replicating the placement of the trial stem.

Shoulder prosthesis with humeral fracture stem

A shoulder prosthesis including a fracture stem has a body having an exterior surface, a shank attached to the body and a head. The body includes a medial fin, an anterior fin and a posterior fin. The medial fin includes a suture hole. The anterior and posterior fins each include a plurality of suture holes. The prosthesis further includes a lateral suture hole intersecting the exterior surface of the body. The lateral suture hole may be formed in a projection on the lateral side of the prosthesis. In an alternative embodiment, a trail prosthesis includes indicia for noting the proper placement of the stem. The prosthesis includes corresponding indicia for replicating the placement of the trial stem.

Shoulder prothesis with humeral fracture stem

An apparatus for positioning a prosthesis in a bone includes a body, first and second clamps, a depth gauge and a guide. The first clamp is coupled to the body. The depth gage is coupled to the body and is movable relative thereto generally perpendicular to the shaft of the bone. The second clamp can be selectively engaged with and disengaged from the depth gage. The second clamp is movable with the depth gage and is also moveable in a direction generally parallel to the axis of the bone The guide is used to determine the proper rotational orientation of the apparatus. The first clamp is then secured to the bone. The second clamp is secured to a trial prosthesis and is engaged with the depth gage as the trial is inserted into the bone. When the proper insertion depth is reached, the second clamp is secured to the depth gage. The joint is then reduced and the range of motion checked. The depth and rotational orientation may be adjusted as needed. The second clamp is released from the trial, the trial is removed and the prosthesis is inserted in the bone and secured to the second clamp.

Prosthesis positioning apparatus and method for implanting a prosthesis

Bone cutting apparatus and method

A modular shoulder prosthesis for the replacement of a portion of the humerus is provided. The prosthesis is assembled from a kit that includes a stem sized to be received in the humerus, a body sized to replace a portion of the humerus, the body being attachable to the stem, and a head member sized to replace the head of the humerus, the head member being eccentrically attachable to the body. A collar is inserted between the head member and the body to help stabilize the assembled prosthesis.

Growing community of inventors

San Antonio, TX, United States of America

Charles A Rockwood, Jr