Clinical Results for 19 to 21 Years on Total Hip Prosthesis with Ceramic Head Combined with UHMWPE Socket

Hiroyuki Oonishi Jr.; Hironobu Oonishi; Sok Chol Kim; Shingo  Masuda; Masaru Ueno; Hirotsugu Ohashi

doi:10.4028/www.scientific.net/KEM.361-363.1303

Paper Titles

Ceramic Total Knee Prosthesis with Smooth Surface Keeps High Wear Resistance in Long Clinical Use
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Valuation of Ceramic Explants after 19 Years In Vivo
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Pilot Study of Safety and Performance of a Mixture of Calcium Phosphate Granules Combined with Cellulosic-Derived Gel after Tunnel Filling Created during Surgical Treatment of Femoral Head Aseptic Osteonecrosis
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16 to 21 Year Clinical Results of Total Hip Arthroplasty with HA Granules at Cement-Bone Interface (Interface Bioactive Bone Cement)
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Clinical Results for 19 to 21 Years on Total Hip Prosthesis with Ceramic Head Combined with UHMWPE Socket
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Total Knee Replacement for Rheumatoid Arthritis by Using Improved Cement Technique by Interposing Hydroxyapatite Granules
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Clinical Experiences of Ceramic Total Knee Arthroplasty More than 26 Years
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Nineteen Years Review of Hydroxyapatite Ceramic Coated Hip Implants: A Clinical and Histological Evaluation
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Macroporous Biphasic Calcium Phosphate Bioceramics Wedges in High Tibial Osteotomy
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 361-363Clinical Results for 19 to 21 Years on Total Hip...

Clinical Results for 19 to 21 Years on Total Hip Prosthesis with Ceramic Head Combined with UHMWPE Socket

Abstract:

In total hip prosthesis (THP), we have been using alumina ceramic femoral heads to reduce polyethylene debris and the modified cementing technique, which was named “interface bioactive bone cement (IBBC)” method to improve implant fixation. In this study, we investigated the long-term clinical performance of THPs with an alumina ceramic head and IBBC method. From 1986 to 1988, 285 joints (215 patients) were operated on by a senior surgeon, and 265 joints (192 patients) could be followed up. The presence of radiolucent lines, loosening, osteolysis and ultrahigh-molecular-weight polyethylene (UHMWPE) socket wear were observed. In IBBC, a radiolucent line appeared as a ’space’, and loosening appeared as a ’separation’ between the HA layer and the cement. A ‘space’ appeared in 3 joints (1.4%) on the acetabulum and in 4 joints (1.8%) on the femur, while a ‘separation’ appeared in 3 joints (1.4%) on the acetabulum. Osteolysis was noted in 1 joint (0.5%) on the acetabulum and in 2 joints (0.9%) on the femur. No revision surgery was required. In our previous study, we reported that the thickness of the socket affected its clinical wear rate and that the wear rate of sockets with an alumina ceramic head was 20% lower than that of sockets with a metal head. By reducing wear debris through the use of ceramic heads, osteolysis could be reduced. Long-term fixation of THPs to the bone has been achieved by using IBBC. Thus, the long-term clinical results of THPs with an alumina head that were fixed using IBBC were excellent.