A 32-year-old policeman presented to the emergency department with acute right knee pain and swelling after a fall. The injury was sustained while playing kabbadi (an Indian game) as a result of a twisting injury to the knee. He was initially treated at a local hospital where they diagnosed it as a knee dislocation. However, he was referred to our institution after an unsuccessful attempt at closed reduction. On clinical evaluation, the patient was haemodynamically stable and all vital parameters were within normal limits. Clinical examination of the right knee revealed a painful and mildly swollen right knee with ‘puckering’ of the skin overlying the medial femoral condyle. It appeared as though the skin overlying the medial femoral condyle was trapped inside the knee joint.

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