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General Orthopaedics

Outcome and complications of 137 rotating hinge TKAs at medium term follow-up

The South African Orthopaedic Association (SAOA) 58th Annual Congress



Abstract

Aim

To assess the outcome and complication rate of rotating hinge knee prostheses in our unit.

Method

From our knee database we have identified 137 consecutive rotating hinged TKRs (implanted 2004–2010) for severe instability, arthrofibrosis and severe bone loss in either primary or revision arthroplasty. Prospective pre-operative scores and post-operative scores were obtained. 23 had died or were lost to follow-up. This left 114 cases with complete outcome and complication data.

Results

The mean preoperative American Knee Score of 30.4 improved to 85.5 at a mean follow up of 4.2 years. Complications included: re-revision (6), manipulation (3), infection (2 cases) and above knee amputation (1).

Conclusion

Rotating hinged knee prostheses provided good pain relief and stability with acceptably low complication rates given the severity and complexity of cases in which they were used.

MULTIPLE DISCLOSURES