Chronological changes of serum chromium levels after modern metal-on-metal total hip arthroplasty |
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Authors: | Maezawa Katsuhiko Nozawa Masahiko Matsuda Keiji Yasuma Motoo Mori Kaoru Enomoto Fumiyo Ogawa Seiki Shitoto Katsuo Kurosawa Hisashi |
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Affiliation: | Departmnt of Orthopaedic Surgery, Juntendo University School of Medicine, Hongo, Tokyo, Japan. maeza@med.juntendo.ac.jp |
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Abstract: | We determined changes in serum chromium concentration every 6 months up to 3 years after implantation in 44 patients (mean age 63 (49-79) years, 35 women) who underwent modern metal-on-metal total hip arthroplasty (Metasul). The serum chromium levels increased between the first and second year after implantation (1 year: 1.05 (SD 0.76) microg/L, 2 years: 1.46 (SD 0.91) microg/L). A small increase was observed during the third year (1.61 (SD 1.31) microg/L). The clinical relevance of this finding is uncertain and should be determined in long-term studies on a large scale. |
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