Patent ID: 6162253
Filing Date: 2000-12-19
Classification: A61B,A61F

Abstract:
A two component elbow endoprosthesis comprising:a humeral component, the humeral component comprising:(i) a condylar portion adapted to be received in a resected portion of a distal humerus between the medial and lateral aspects of the humeral condyle, the condylar portion having a proximal end and a distal end and comprising a proximal portion disposed at the proximal end and an isometric articulating surface, a medial side and a lateral side disposed at the distal end, the proximal portion having a longitudinal axis and a first cross-sectional area, the articulating surface comprising an arcuate groove disposed circumferentially along the distal end of the condylar portion, midway between the medial side and the lateral side, and(ii) a humeral stem portion attached to the proximal portion of the condylar portion, the humeral stem adapted to be received in the medullary canal of the distal humeral shaft, the humeral stem portion having a proximal end and a longitudinal axis angled cranially with respect to the longitudinal axis of the proximal portion, the stem portion having a second cross sectional area smaller than the first cross-sectional area of the proximal portion, thereby forming a shoulder between the humeral stem portion and the proximal portion; anda radioulnar component for articulating with the humeral component, the radioulnar component comprising:(i) a head portion comprising an isometric arcuate articulating ridge adapted to articulate with the arcuate groove of the humeral component,(ii) a radial stem portion attached to the head portion adapted to be received in the medullary canal of a proximal radial shaft, and(iii) an ulnar stem portion attached to the head portion adapted to be received in the medullary canal of a proximal ulnar shaft.