Safety and Effectiveness Study of Ascension's PyroCarbon Radial Head Compared to Ascension's Metal Radial Head

Inclusion Criteria: Patients must need a radial head replacement for:

• Degenerative, post-traumatic or rheumatoid arthritis

• Primary replacement after fracture of the radial head

• Relief of symptoms after radial head resection

• Revision of failed radial head arthroplasty

• Skeletally mature individuals ages 18 - 85

Exclusion Criteria:

• Inadequate bone stock or soft tissue coverage

• Previous open fracture or infection in the joint

• Individuals under age of 18 or over 85 years of age

• Physical interference with or by other prostheses during implantation or use

• Procedures requiring modification of the prosthesis

• Skin, bone, circulatory and/or neurological deficiency at the implantation site

• Prisoners

• Patients on chronic corticosteroid or non-steroidal anti-inflammatory therapy