The purpose of this study is to allow patients to undergo surgery with the SR™ MCP (Metacarpophalangeal) Implants for finger arthritis. This is NOT a research study, but rather, a requirement by the FDA for humanitarian use of device.

The purpose of this IRB approved study is to allow patients to undergo surgery with the SR™ MCP (Metacarpophalangeal) Implants. This is NOT a research study, but rather, a requirement by the FDA for humanitarian use of device. Use of the SR™ MCP is approved for humanitarian use by the FDA when either the patient is in need of a revision of failed MCP prothesis(es) or the patient expects to place his/her hand under loading situation which preclude the use of an alternative implant in the painful osteo-arthritic and post traumatic arthritic MCP joint.

Inclusion Criteria:

• patient is in need of a revision of failed MCP prosthesis(es)
• patient expects to place his/her hands under loading situations which preclude the use of an alternative implant in the painful osteo-arthritic and post traumatic arthritic MCP joint

Exclusion Criteria:

• patient is not in need of a revision of a failed MCP prothesis(es)
• patient is eligible to use an alternative implant