Shafi Mohamed, Kim Young Yul, Lee Yeon Soo, Kim Jin Young, Han Chang Whan
Department of Orthopedic Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 520-2 Daehung-Dong, Jung-Gu, Daejeon, Seoul, Korea.
Knee Surg Sports Traumatol Arthrosc. 2005 Sep;13(6):472-5. doi: 10.1007/s00167-004-0566-9. Epub 2005 Feb 22.
The patellar component of a total knee replacement (TKR) is the most frequent source of non-septic complications after total knee arthroplasty. Fracture of patellar pegs in all polyethylene patellar components is a very rare occurrence. We report such a case of a patellar polyethylene fracture in a 72-year-old female patient 10 years after TKR. Due to patellar malalignment and high level of activity, the patellar components failed in this patient. This was treated arthroscopically by removing the components that failed and leaving the patella unresurfaced. We followed up the patient postoperatively and her symptoms were substantially resolved.
全膝关节置换术（TKR）中髌骨部件是全膝关节置换术后非感染性并发症最常见的来源。所有聚乙烯髌骨部件中的髌骨钉骨折是非常罕见的情况。我们报告了1例72岁女性患者在全膝关节置换术后10年发生髌骨聚乙烯骨折的病例。由于髌骨排列不齐和活动水平较高，该患者的髌骨部件出现故障。通过关节镜检查移除出现故障的部件，未对髌骨进行表面置换处理。我们对该患者进行了术后随访，其症状得到了明显缓解。
