LEFT KNEE REPLACEMENT FOR 62-YEAR-OLD FEMALE WITH HUGE SUCHONDRAL CYST COMMUNICATING WITH MEDULLARY CANAL OF TIBIA: A CASE REPORT

Geodes or subchondral cyst are cystic lesion without epithelial lining adjacent to joints seen commonly in articular diseases particularly rheumatoid arthritis and osteoarthritis. This article reviews detailed history, examination and investigations of 62 years-old female patient known case of bilateral knee osteoarthritis with intraoperative incidental finding of large geode at left tibia. The present report aimed to highlight the importance of preoperative assessment in terms of radiographic appearancesand clinical information to exclude any subchondral cysts, osteochondral defects and any surprise during surgery. . We recommend that all arthroplasty cases should be done with revision system and extension stems available as a backup in the center.