Multiple sclerosis and bilateral dislocations of total knee replacements: a case report.

We report on a 67-year-old lady with multiple sclerosis (MS) who underwent bilateral total knee replacements using a fixed bearing posterior cruciate retaining prosthesis. Having initially achieved a satisfactory result, she developed recurrent dislocations of both knees necessitating bilateral revision surgery. Such complications are not previously described as a sequela of a neurological disease.