Overview
This is a Post-Marketing Surveillance study of GMK Sphere cementless knee prosthesis.
Eligibility
Inclusion Criteria:
- A disabled or severely disabled joint as a result of arthritis, traumatic arthritis, rheumatoid arthritis, poly-arthritis or avascular necrosis
- Patients between the age of 18 and 80 at the time of consent
- Listed for total knee replacement surgery.
- Patients who are willing and able to give informed written consent
Exclusion Criteria:
- Progressive local or systemic infection
- Muscular loss, neuromuscular disease or vascular deficiency of the affected limb, making the operation unjustifiable
- Severe instability secondary to advance destruction of condralar structures or loss of integrity of the medial or lateral ligament
- Those whose prospects for a recovery to independent mobility would be compromised by known coexistent, medical problems
- Patient whose BMI exceeds 40
- Any case not described in the inclusion criteria
