Wear, frictional torque and creep deformity of UHMWPE sockets crosslinked by gamma radiation of 100, 500 and 1000 Mrad in combination with 28 mm alumina heads, were measured using a hip simulator (under constant load 250 kgf with lubrication of saline solution). Hardness and hydrophilic increased and creep deformity decreased as a result of gamma radiation. The initial wear (decrement of the thickness) of the socket with radiation of 0, 100, 500 and 1000 Mrad was, 150 μm, 100 μm, 70 μm and 50 μm, respectively. The time to steady-state wear at 0, 100, 5000 and 1000 Mrad was about 0.15 million, 0.15 million, 0.1 million, and 0.05 million cycles, respectively. The steady-state wear (decrement of the thickness) of the socket without and with radiation was 200 μm/million cycles and less than 20 μm/million cycles, respectively. Rotational torque was under 0.65 Nm in every case. Swing frictional torque at radiation levels of 0, 100, 500 and 1000 MRad were 1.60–2.84 Nm, 3.24–9.02 Nm, 5.23–8.78 Nm, and 2.51–6.79 Nm, respectively.
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References
G. K. MCKTT and J. WATSON-FARRAR, J. Bone Joint Surg. 48 (1966) 245–259.
J. CHARNLEY, in “Surgery of the hip joint, present and future developments”, Brit. Med. J. 1 (1960) 821–826.
B. M. WROBLEWSKI, in “15–21 year results of the Charnley low friction arthroplasty”, Clin. Orthop. 211 (1986) 30–35.
H. OONISHI, T. KOTANI and T. SHIKITA, in Proceedings of the 12th SICOT (Excerpta Media, Amsterdam, 1972) pp. 107–123.
H. OONISHI and T. SHIKITA, in “Alumina ceramic total hip prosthesis”, Bessatsu Seikei-Geka No. 3, Nankodo, 1983, 264–279.
H. OONISHI, H. IGAKI and Y. TAKAYAMA, in 3rd World Biomaterials Congress Transactions, April 21–25, Kyoto, Japan, 1988, p. 337.
Idem., ibid. 1988, p. 588.
Idem. MRS International Meeting on Advanced Materials, Vol. 1 (Materials Research Society, 1989) pp. 351–356.
Idem., “Bioceramics”, Vol. 1 (Ishiyaku Euro-American, Tokyo/St. Louis, 1989) pp. 272–277.
H. OONISHI and E. TSUJI, in Clinical implant materials advances in biomaterials, Vol. 9 (Elsevier, Amsterdam, 1990) pp. 379–384.
H. OONISHI, Y. TAKAYAMA and E. TSUJI, Radiat. Phys. Chem. 396 (1992) 495–504.
T. SHIKITA, H. OONISHI, T. HASHIMOTO, H. IGAKI, and T. SAKAI, in 1975 Symposium Biomaterials, The Society of Materials Science, Kyoto University, Japan, August, 29–30, 1975, pp. 69–74.
H. OONISHI, Y. TAKAYAMA and E. TSUII, in Surface Modification Technology V (1992) 101–115.
P. BOUTIN, Rev. Chir. Orthop. 58 (1972) 229–246.
P. GRISS, E. WERNER, R. BUCHINGER, C. M. BUSING and G. HEINKE, Arch. Orthop. Untall Chir. 90 (1977) 29–40.
R. E. JENSON, in Implant Retrieval Symposium of the society for Biomaterials, September, 1982, pp. 17–20.
J. M. KABO, J. S. GEBHARD, G. LOREN and H. C. AMSTUTZ, J. Bone J Surg. 75-B (1993) 251–258.
L. I. STEPHEN and A. H. BURSTEIN, J. Bone J Surg. 76-A (1994) 1080–1090.
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Oonishi, H., Ishimaru, H. & Kato, A. Effect of cross-linkage by gamma radiation in heavy doses to low wear polyethylene in total hip prostheses. J Mater Sci: Mater Med 7, 753–763 (1996). https://doi.org/10.1007/BF00121412
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DOI: https://doi.org/10.1007/BF00121412