tailieunhanh - Báo cáo y học: " Unique relationship between osteophyte and femoral-tibia component size mismatch in determining polyethylene wear in primary total knee arthroplasty: a case report"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Unique relationship between osteophyte and femoral-tibia component size mismatch in determining polyethylene wear in primary total knee arthroplasty: a case report | Journal of Medical Case Reports BioMed Central Open Access Case report Unique relationship between osteophyte and femoral-tibia component size mismatch in determining polyethylene wear in primary total knee arthroplasty a case report Manjunath Ramappa and Andrew Port Address James Cook University Hospital Middlesbrough UK Email Manjunath Ramappa - drbrm2004@ Andrew Port - Corresponding author Published 10 February 2009 Received 12 August 2008 Journal of Medical Case Reports 2009 3 59 doi 1752-1947-3-59 Accepted 10 February 2009 This article is available from http content 3 l 59 2009 Ramappa and Port licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Introduction Knee pain is a complex problem that can occur after total knee arthroplasty. One cause of knee pain may be due to a retained osteophyte but it is not clear if the retained osteophyte is sufficient explanation of the pain as not all patients with retained osteophytes are symptomatic. In fact the literature shows that excised osteophytes can also recur over a period of time without any symptoms. Therefore a retained osteophyte alone is probably not sufficient to cause symptoms. Case presentation We present a case of intermittent medial knee pain occurring post-primary total knee arthroplasty in a patient who underwent several investigations over a period of 5 years. Radiographs showed an osteophyte in the postero-medial femur along with slight tibial component overhang which was normal for that knee implant design. The symptoms eventually settled with excision of only the osteophyte without altering the tibial component. Conclusion A retained osteophyte alone or tibial component overhang .