Gudena Ravindra, Kuna Suma, Pradhan Nikhil
University of Calgary, 12 Garwood Close, Westbrook, Warrington, WA5 8TF, UK,
Musculoskelet Surg. 2013 Dec;97(3):247-9. doi: 10.1007/s12306-011-0167-y. Epub 2011 Oct 9.
Aseptic loosening is one of the commonest complications of total hip replacement that can cause pain and instability. The chronic inflammatory response to the wear debris from the polyethylene or metal can cause osteolysis and implant failure. We report a case of aseptic loosening of the hip, presented with a swelling over the anterior thigh without any pain or instability in the joint. This mass was a foreign body granuloma formed secondary to the polyethylene wear debris due to the instability of the polyethylene in the metal shell. The patient underwent successful revision hip arthroplasty after the removal of the foreign body granuloma.
无菌性松动是全髋关节置换最常见的并发症之一，可导致疼痛和关节不稳。对聚乙烯或金属磨损碎屑的慢性炎症反应可引起骨溶解和植入物失败。我们报告一例髋关节无菌性松动病例，患者大腿前部肿胀，但关节无疼痛或不稳。该肿块是由于聚乙烯在金属壳内不稳定产生的聚乙烯磨损碎屑继发形成的异物肉芽肿。患者在切除异物肉芽肿后成功进行了髋关节翻修术。
