UNICONDYLAR KNEE REPLACEMENT IMPLANT WITH 40 GMS ANTIBIOTICBONE CEMENT SPECIFICATION: 1. SHOULD SUPPLY ALL SIZES OF IMPLANTS AND INSTRUMENTATION AT THE TIME OF SURGERY 2. SHOULD PROVIDE MOBILE TIBIAL BEARING PLATFORM. 3. CONSISTS SET OF ONE TIBIAL PLATFORM, ONE FEMORAL COMPONENT, REQUIRED SIZED INSERT AND ANTIBIOTIC CEMENT ( 40gms ) 4. FIRM SHOULD BE REPUTED WITH LONG TERM MARKET STANDING OF AT LEAST 15 YEARS.