Seventy-three knees with a symptomatic plica were managed using both
conservative and operative methods. Twelve patients were successfully
treated conservatively. Fifty-seven patients (sixty-one knees) underwent
arthrotomy and partial synovectomy or a release of the plica through the
operating arthroscope, and all but two returned to full activity. The
results were considered excellent or good after an average follow-up of
nineteen months.