Osteointegration of 96 cementless hip prostheses with hydroxyapatite coating; 5 years follow-up.

摘要: Since 1988 at total of 96 hip prostheses with hydroxyapatite coating (HA) for both the acetabular and femoral components have been used. HA is considered to be a biocompatible material, considerable capacity osteointegration evident osteophilia. Close integration between this material bone tissue determined by formation chemical bonds, leads development osteoid newly-formed trabeculae. Based on radiographic evaluation criteria described Engh in 1990 reference concepts stability fixation prosthesis bone, it was observed that signs are manifested as early 1 year after surgery, and, particular, bridges (spot welds) interface increases time.