Reikerås Olav, Gunderson Ragnhild B
Surgical Department, Sophies Minde, Oslo Orthopaedic University Clinic, Norway.
Acta Orthop Scand. 2002 Jan;73(1):104-8. doi: 10.1080/000164702317281503.
We report the outcome of 191 acetabular gritblasted titanium cups with a hemispherical design for press-fit insertion and coated with hydroxyapatite. The prosthesis was made of gritblasted titanium entirely coated with hydroxyapatite. 155 patients aged 15-78 years were operated on during the years 1991-1993 and followed for 7-10 years. During this period, 39 cups were revised because of mechanical loosening, a further 9 had radiolucent lines and 2 focal osteolysis. None of these 11 patients had clinical symptoms. Failure was associated with age, wear and radiolucency/osteolysis. At revision, we found that the soft tissues were discolored, and that most of the coating had disappeared. This design of hydroxyapatite-coated cups has a high rate of debonding and failure.
我们报告了191个采用半球形设计、用于压配植入且涂有羟基磷灰石的髋臼喷砂钛杯的使用结果。该假体由完全涂有羟基磷灰石的喷砂钛制成。1991年至1993年期间，对155名年龄在15至78岁的患者进行了手术，并随访了7至10年。在此期间，39个杯因机械松动而翻修，另有9个出现透光线和2处局灶性骨质溶解。这11名患者均无临床症状。失败与年龄、磨损以及透光线/骨质溶解有关。翻修时，我们发现软组织变色，且大部分涂层已消失。这种羟基磷灰石涂层杯的设计有较高的脱粘和失败率。
