Procedures involving arthrotomy and removal of the prosthesis were reported most commonly in patients younger than 55 (25. 7\%).    From Wordnik.com.  [MedPageToday.com - medical news plus CME for physicians] Reference

Lateral fragment is displaced foreword while medial is c. arthroscopy with removal of loose bodies or torn cartilage. displaced backward. d. arthrotomy with evacuation of the synovial fluid. c.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference