Failure of Polyethelene Insert Locking Mechanism after a Pos
Case Presentation:

A 70-year-old female underwent (Attune,Depuy) primary bilateral posterior stabilised total knee arthroplasty in a private hospital. The patient did not have any complaints and had had been functioning well post her arthroplasty. After five months of surgery she had a fall and sustained injury over right hip which was treated with Cemented Bipolar Hemiarthroplasty. Ten months after index surgery, she sustained trivial fall and presented to the same hospital with knee pain and swelling, where the right knee prosthesis was found to be dislocated. An attempted closed reduction under anaesthesia failed, after which she was referred to our centre with an unstable, painful, swollen right knee in a long knee brace...
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