55 years old gentleman underwent right partial knee replacement in 2019 for medial compartment osteoarthritis. Over the last 6 months he complained of pain instability and difficulty in walking. His X-Rays revealed subsidence and loosening of the tibial component (Picture).

Having ruled out infection he was taken up for surgery to convert this into total knee replacement. These cases require appropriate surgical planning to counter the tibial and femoral defect and meticulous balancing of flexion and extension gap. We routinely perform these procedure at our institute with excellent results. Post-operative X-Ray shows primary knee replacement implant with additional tibial stem. Patient is making satisfactory recovery after surgery.