Paper35-Histological-biological-effects-granulation-tissue-loosened hip-development-osteolysis-J-Ort

5 although little difference was seen between kyocera

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Unformatted text preview: ogical features. The tissues around the loosened noncemented socket contained significantly more particles and concomitantly more giant cells (Fig. 5). Although little difference was seen between Kyocera and Charnley type prostheses fixed with cement, the prosthesis without cement (Omniflex/Omnifit) resulted in more particles. The histological data from all samples are shown in Table 3. To determine the mechanism of osteolysis, we examined the granulation tissues around the stem of a patient with massive osteolysis. The patient was a 56-year-old man (case 19) who had received an Omnifit femoral head replacement for avascular necrosis 13 years earlier. A radiolucent area around the stem was noticed 7 years after the primary operation. A prerevision radiograph showed massive osteolysis, and numerous giant cells engulfing polyethylene particles were demon- Fig. 3a–d. Distribution of histologic grading of histiocytes, giant cells, and polyethylene particles in all samples from aseptic loosening. a Total sample...
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