Total Knee Replacement Using Simplex® or Cobalt™ Bone Cement

The purpose of this study is to collect radiographic and clinical outcomes of total knee
replacement using Simplex® or Cobalt™ Bone Cement.

Inclusion Criteria:

- Patients with painful and disabled knee joint resulting from osteoarthritis,
rheumatoid arthritis, traumatic arthritis where one or more compartments are involved

- Patients requiring correction of varus, valgus, or posttraumatic deformity

- Patients requiring correction or revision of unsuccessful osteotomy, arthrodesis, or
failure of previous joint replacement procedure

Exclusion Criteria:

- Infection, sepsis, and osteomyelitis