New Delhi: Surinder Rawat, a physical education teacher who had rheumatoid arthritis, got a new lease of life after doctors here performed a replacement surgery on both her knees using a new technology, a doctor said Tuesday.Rawat, 68, who suffered knee pain for over four years, was diagnosed with rheumatoid arthritis, a condition where the joint cartilage between the bones of the knee gradually wears away, degrades the lining of the joints and causes swelling that is painful and can lead to joint deformity in the affected joints.Rawat wanted to walk without a walking stick."We used the new technology PSI (patient-specific instrumentation), which improves alignment and sizing by using computer-generated images of the patient anatomy to determine precise bone cuts and implant positioning during the surgery," said Raju Vaishya, senior consultant, joint replacement surgeon, Indraprastha Apollo Hospital.
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