Total hip arthroplasty using bone cement containing tri-n-butylborane as the initiator.
We performed total hip arthroplasty (THA) using a special acrylic self-curing bone cement (Bonemite), which contains tri-n-butylborane as the initiator. Its maximum temperature at curing is lower than that of a conventional bone cement (CMW). Fifty-eight THAs using Bonemite and 35 THAs using CMW were followed up for more than 8 years (12.5 years on average). At the 10-year follow-up, the survival rates, using revision surgery or aseptic loosening impending revision as the endpoint for failure, were 92.2% for the patients in the Bonemite group and 91.0% for those in the CMW group. No statistical differences were observed between the patients in these two groups with regard to survival rate (p = 0.39). Bonemite showed no clear superiority compared with CMW, although the results suggest that Bonemite is safe and reliable for clinical use and stable in situ for long time.
Morita
S
S
Department of Orthopedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan. s.morita.phyt@med.tmd.ac.jp
Kawachi
S
S
Yamamoto
H
H
Shinomiya
K
K
Nakabayashi
N
N
Ishihara
K
K
D019644:Arthroplasty, Replacement, Hip; D001843:Bone Cements; D001896:Boron Compounds; D006801:Humans; D016896:Treatment Outcome
D001843:Bone Cements; D001896:Boron Compounds; C009523:tri-n-butylborane