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An ulnar prosthesis assembly comprising a head formed with a curved surface extending between opposed ends and a stem. One of the ends of the head has an attachment bore defined therein. The attachment bore generally has a first diameter and includes an attachment groove thereabout with a second dia

An ulnar prosthesis assembly comprising a head formed with a curved surface extending between opposed ends and a stem. One of the ends of the head has an attachment bore defined therein. The attachment bore generally has a first diameter and includes an attachment groove thereabout with a second diameter greater than the first diameter to define at least one attachment shoulder. The stem has a stem body extending between a proximal end configured for implantation in a target bone and a distal end configured to be received in the attachment bore. The distal end has a locking flange extending radially therefrom. The locking flange defines a locking shoulder having a diameter greater than the first diameter such that upon receipt in the attachment bore, the locking shoulder engages the attachment shoulder.

대표청구항 ▼

What is claimed: 1. An ulnar prosthesis assembly comprising:a head formed with a curved surface extending between opposed ends, one of the ends having an attachment bore defined therein, the attachment bore generally having a first diameter and including an attachment groove extending about a circum

What is claimed: 1. An ulnar prosthesis assembly comprising:a head formed with a curved surface extending between opposed ends, one of the ends having an attachment bore defined therein, the attachment bore generally having a first diameter and including an attachment groove extending about a circumference thereof with a second diameter greater than the first diameter to define at least one attachment shoulder extending about the complete circumference of the bore; anda stem having a stem body extending between a proximal end configured for implantation in a target bone and a distal end configured to be received in the attachment bore, the distal end having a locking flange extending radially therefrom, the locking flange defining a locking shoulder having a diameter greater than the first diameter such that upon receipt in the attachment bore, the locking shoulder engages the attachment shoulderwherein the locking flange is tapered outwardly toward the proximal end.