Boureau F, Putman S, Arnould A, Dereudre G, Migaud H, Pasquier G
Service d'orthopédie D, hôpital Salengro, CHRU de Lille, place de Verdun, 59037 Lille cedex, France; Université Lille Nord de France, 59000 Lille cedex, France.
Service d'orthopédie D, hôpital Salengro, CHRU de Lille, place de Verdun, 59037 Lille cedex, France; Université Lille Nord de France, 59000 Lille cedex, France.
Orthop Traumatol Surg Res. 2015 Apr;101(2):251-5. doi: 10.1016/j.otsr.2014.11.020. Epub 2015 Mar 6.
Management of bone loss is a major challenge in revision total knee arthroplasty (TKA). The development of preformed porous tantalum cones offers new possibilities, because they seem to have biological and mechanical qualities that facilitate osseointegration. Compared to the original procedure, when metaphyseal bone defects are too severe, a single tantalum cone may not be enough and we have developed a technique that could extend the indications for this cone in these cases. We used 2 cones to fill femoral bone defects in 7 patients. There were no complications due to wear of the tantalum cones. Radiological follow-up did show any migration or loosening. The short-term results confirm the interest of porous tantalum cones and suggest that they can be an alternative to allografts or megaprostheses in case of massive bone defects.
在全膝关节置换翻修手术（TKA）中，骨质流失的管理是一项重大挑战。预制多孔钽锥体的开发提供了新的可能性，因为它们似乎具有促进骨整合的生物学和力学特性。与原始手术相比，当干骺端骨缺损过于严重时，单个钽锥体可能不够，我们开发了一种技术，可以在这些情况下扩大该锥体的应用指征。我们使用2个锥体填充7例患者的股骨骨缺损。未出现因钽锥体磨损导致的并发症。影像学随访未显示任何移位或松动。短期结果证实了多孔钽锥体的价值，并表明在出现大块骨缺损时，它们可以替代同种异体骨移植或大型假体。
