{"nct_id":"NCT00862316","title":"Oxford Unicompartmental Knee Arthroplasty With and Without Navigational Unit","status":"COMPLETED","status_verified_date":"2017-06","start_date":"2009-05","start_date_type":null,"primary_completion_date":"2010-05","primary_completion_date_type":"ACTUAL","completion_date":"2010-05","completion_date_type":"ACTUAL","phases":["NA"],"tickers":["ZBH"]}