Herrera Antonio, Mateo Jesús, Gil-Albarova Jorge, Lobo-Escolar Antonio, Ibarz Elena, Gabarre Sergio, Más Yolanda, Gracia Luis
Department of Surgery, Medicine School, University of Zaragoza, Domingo Miral s/n, 50009 Zaragoza, Spain ; Aragón Health Sciences Institute, Avenida San Juan Bosco 13, 50009 Zaragoza, Spain.
Department of Surgery, Medicine School, University of Zaragoza, Domingo Miral s/n, 50009 Zaragoza, Spain ; Aragón Health Sciences Institute, Avenida San Juan Bosco 13, 50009 Zaragoza, Spain ; Department of Orthopaedic Surgery and Traumatology, Miguel Servet University Hospital, Avenida Isabel la Católica 3, 50009 Zaragoza, Spain.
Biomed Res Int. 2015;2015:386461. doi: 10.1155/2015/386461. Epub 2015 Feb 23.
More than twenty years ago, hydroxyapatite (HA), calcium phosphate ceramics, was introduced as a coating for cementless hip prostheses. The choice of this ceramic is due to its composition being similar to organic apatite bone crystals. This ceramic is biocompatible, bioactive, and osteoconductive. These qualities facilitate the primary stability and osseointegration of implants. Our surgical experience includes the implantation of more than 4,000 cementless hydroxyapatite coated hip prostheses since 1990. The models implanted are coated with HA in the acetabulum and in the metaphyseal area of the stem. The results corresponding to survival and stability of implants were very satisfactory in the long-term. From our experience, HA-coated hip implants are a reliable alternative which can achieve long term survival, provided that certain requirements are met: good design selection, sound choice of bearing surfaces based on patient life expectancy, meticulous surgical technique, and indications based on adequate bone quality.
二十多年前,羟基磷灰石(HA),即磷酸钙陶瓷,被引入作为非骨水泥型髋关节假体的涂层。选择这种陶瓷是因为其成分与有机磷灰石骨晶体相似。这种陶瓷具有生物相容性、生物活性和骨传导性。这些特性有助于植入物的初始稳定性和骨整合。自1990年以来,我们的手术经验包括植入了4000多个非骨水泥型羟基磷灰石涂层髋关节假体。植入的型号在髋臼和柄的干骺端区域涂有HA。长期来看,与植入物的存活和稳定性相关的结果非常令人满意。根据我们的经验,只要满足某些要求,HA涂层髋关节植入物是一种可靠的选择,可以实现长期存活:良好的设计选择、根据患者预期寿命合理选择承重表面、细致的手术技术以及基于足够骨质量的适应症。