PT - JOURNAL ARTICLE AU - Atilla, Bulent AU - Atilla, Pergin AU - Tokgozoglu, Ahmet M. AU - Cakar, Ayse N. AU - Alpaslan, Ahmet M. TI - Immunohistochemical evaluation of periprosthetic membrane from loose cemented and uncemented total hip arthroplasty DP - 2005 Mar 01 TA - Saudi Medical Journal PG - 429--433 VI - 26 IP - 3 4099 - http://smj.org.sa/content/26/3/429.short 4100 - http://smj.org.sa/content/26/3/429.full SO - Saudi Med J2005 Mar 01; 26 AB - OBJECTIVE: Evaluate the cellular mechanisms responsible for the aseptic loosening of total hip replacements.METHODS: Twenty periprosthetic membranes were collected during revision procedures at the Department of Orthopedics, Hacettepe University, Ankara, Turkey, during 1998 to 1999. Arthroplasties with polyethylene components and without polyethylene components were examined under light microscopy and immunohistochemically using the indirect immunoperoxidase technique into 2 different groups.RESULTS: Immunohistochemical analysis with monoclonal antibodies reactive to certain cell surface antigens (CD45, CD44, CD98, CD31, CD26, CD71) revealed different morphological characteristics regarding the adjacent fibrosis, leukocyte activation, and immunologic response.CONCLUSION: These findings suggested the role of different cellular mechanisms in each group.