74 years old lady came with complaints of pain in left knee and difficulty in bearing weight over left lower limb for the past 6 months. She had undergone bilateral knee replacement 2 yrs ago. She fell 6 months ago and sustained a fracture of the proximal tibia which resulted in varus deformity and loosening of the tibial component. There was no evidence of infection.
We planned for revision knee replacement with rotating hinge knee prosthesis. These surgeries require meticulous preoperative planning in terms of minimizing bone loss during prosthesis removal, reconstruction of the bone defect and inserting hinged knee prosthesis to overcome the instability due to insufficient ligaments. Post-operative x-ray showed RHK with wedge under tibial side to build up the medial defect. Now patient is comfortably bearing weight and walking with support.