Patil Vishwajit, Adkar Neeraj, Patil Mangesh, Kerhalkar Ravi, Sadlagi Prajwal, Nagle Narendra
Department of Orthopaedics, Robotics Arthroplasty and Sports Medicine Unit, Saishree Hospital, Pune, Maharashtra, India.
Department of Orthopaedics, Robotics Joint Replacement and Sports Medicine Unit, Saishree Hospital, Pune, Maharashtra, India.
J Orthop Case Rep. 2025 Aug;15(8):217-222. doi: 10.13107/jocr.2025.v15.i08.5946.
Component failure is one of the most dreaded complications of any total knee arthroplasty (TKA) surgery. To tackle this, implant technology continues to evolve with the goal of increasing implant survivorship post-TKA surgery. It is estimated that about 20% of TKA revisions are due to mechanical aseptic loosening. Polyethylene insert wear has become an increasingly common finding at the time of revision surgeries. With this case report, we try to highlight the challenges faced during bilateral revision TKA and the use of both femoral and tibial augments to compensate for the bony osteolysis.
A 69-year-old patient with unusual presentation of bilateral TKA (Exactech, Hiflex) failure 6 years post-surgery due to polyethylene wear. Three months following surgery, the patient had no complications and had satisfactory radiological, pain, and functional outcomes.
Although aseptic TKA failure due to polyethylene wear is an uncommon finding. Our case of the 69-year-old male with bilateral arthroplasty failure highlights the significance of the durability of polyethylene along with its wear and fracture resistance. It demonstrates that timely intervention with revision arthroplasty drastically improves pain, mobility, joint stability, and overall quality of life in these patients.
部件失效是全膝关节置换术（TKA）中最可怕的并发症之一。为了解决这个问题，植入技术不断发展，目标是提高TKA手术后植入物的存活率。据估计，约20%的TKA翻修手术是由于机械性无菌性松动。在翻修手术时，聚乙烯内衬磨损已成为越来越常见的情况。通过本病例报告，我们试图强调双侧TKA翻修手术中面临的挑战以及使用股骨和胫骨增强物来补偿骨溶解。
一名69岁患者，术后6年因聚乙烯磨损出现双侧TKA（Exactech，Hiflex）异常失败。术后三个月，患者无并发症，放射学、疼痛和功能结果均令人满意。
虽然因聚乙烯磨损导致的无菌性TKA失败并不常见。我们这位69岁男性双侧关节置换失败的病例突出了聚乙烯耐久性及其耐磨性和抗断裂性的重要性。它表明，及时进行翻修关节成形术可显著改善这些患者的疼痛、活动能力、关节稳定性和整体生活质量。
