TY - JOUR
T1 - Evaluation of several immunological parameters in patients with aseptic loosening of hip arthroplasty.
AU - Granchi, D.
AU - Ciapetti, G.
AU - Stea, S.
AU - Cavedagna, D.
AU - Bettini, N.
AU - Bianco, T.
AU - Fontanesi, G.
AU - Pizzoferrato, A.
PY - 1995/10
Y1 - 1995/10
N2 - The authors evaluated several immunological parameters in patients with loosened hip arthroplasty in order to determine the state of sensitization with regard to the metallic constituents of the prosthesis. The results obtained by in vivo epicutaneous testing did not reveal a correlation between loosening and sensitization, as the patch test was positive in only 1 out of 16 cases examined. An evaluation of the lymphocyte subpopulation on peripheral blood demonstrated that patients with prostheses in Cr, Co, Mo, Ni alloy present significant lymphopenia, with a reduction in subpopulations CD4 and CD8 and a decrease in in vitro cytotoxic activity. The meaning of these modifications could be interpreted to be either a toxic effect products released from the implant, or as the recruitment of lymphocytes in the site of loosening, due to lymphocyte sequestration phenomena consequent to a cell-mediated hypersensitivity reaction.
AB - The authors evaluated several immunological parameters in patients with loosened hip arthroplasty in order to determine the state of sensitization with regard to the metallic constituents of the prosthesis. The results obtained by in vivo epicutaneous testing did not reveal a correlation between loosening and sensitization, as the patch test was positive in only 1 out of 16 cases examined. An evaluation of the lymphocyte subpopulation on peripheral blood demonstrated that patients with prostheses in Cr, Co, Mo, Ni alloy present significant lymphopenia, with a reduction in subpopulations CD4 and CD8 and a decrease in in vitro cytotoxic activity. The meaning of these modifications could be interpreted to be either a toxic effect products released from the implant, or as the recruitment of lymphocytes in the site of loosening, due to lymphocyte sequestration phenomena consequent to a cell-mediated hypersensitivity reaction.
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M3 - Article
C2 - 8706547
AN - SCOPUS:0029385923
VL - 80
SP - 399
EP - 408
JO - Chirurgia degli Organi di Movimento
JF - Chirurgia degli Organi di Movimento
SN - 0009-4749
IS - 4
ER -