1. Microwear phenomena of ultrahigh molecular weight polyethylene cups and debris morphology related to gamma radiation dose in simulator study.
Yamamoto K, Clarke IC, Masaoka T, Oonishi H, Williams PA, Good VD, Imakiire A. J Biomed Mater Res. 2001 Jul;56(1):65-73

 

2. Clinical and simulator wear study of alumina ceramic THR to 17 years and beyond.
Shishido T, Clarke IC, Williams P, Boehler M, Asano T, Shoji H, Masaoka T, Yamamoto K, Imakiire A. J Biomed Mater Res B Appl Biomater. 2003 Oct 15;67(1):638-47

 

3. Validation of acetabular cup wear volume based on direct and two-dimensional measurements: hip simulator analysis.
Mizoue T, Yamamoto K, Masaoka T, Imakiire A, Akagi M, Clarke IC. J Orthop Sci. 2003;8(4):491-9

 

4. Validation of volumetric and linear wear-measurement in UHMWPE cups—a hip simulator analysis
Toshinori Masaoka Ian C. Clarke Kengo Yamamoto Jiro Tamura Paul A. Williams Victoria D. Good Hiromu Shoji Atsuhiro Imakiire Wear 2003 Volume 254, 391–3985.

 

5. Current status of zirconia used in total hip implants.
Clarke IC, Manaka M, Green DD, Williams P, Pezzotti G, Kim YH, Ries M, Sugano N, Sedel L, Delauney C, Nissan BB, Donaldson T, Gustafson GA. J Bone Joint Surg Am. 2003;85-A Suppl 4:73-84. Review.

 

6. Wear mode and wear mechanism of retrieved acetabular cups.
Yamamoto K, Imakiire A, Masaoka T, Shishido T, Mizoue T, Clarke IC, Shoji H, Kawanabe K, Tamura J. Int Orthop. 2003;27(5):286-90.

 

7. Failure of ceramic THR with liner dislocation–a case report.
Yamamoto K, Shishido T, Tateiwa T, Katori Y, Masaoka T, Imakiire A, Clarke I. Acta Orthop Scand. 2004 Aug;75(4):500-2

 

8. Micro-wear features on unique 100-Mrad cups: two retrieved cups compared to hip simulator wear study.
Yamamoto K, Masaoka T, Manaka M, Oonishi H, Clarke I, Shoji H, Kawanabe K, Imakiire A. Acta Orthop Scand. 2004 Apr;75(2):134-41.

 

9. Stripe wear rates in alumina THR–comparison of microseparation simulator study with retrieved implants.
Manaka M, Clarke IC, Yamamoto K, Shishido T, Gustafson A, Imakiire A. J Biomed Mater Res B Appl Biomater. 2004 May 15;69(2):149-57

 

10. Discerning alumina ball wear from confounding metal transfer artifact.
Brown SS, Kawanabe K, Manaka M, Williams P, Good V, Clarke IC. J Biomed Mater Res B Appl Biomater. 2005 Nov;75(2):400-4.

 

11. Effect of low protein concentration lubricants in hip simulators.
Tateiwa T, Clarke IC, Shirasu H, Masaoka T, Shishido T, Yamamoto K. J Orthop Sci. 2006 Mar;11(2):204-11

 

12. A Study for a retrieved implant of ceramic-on-ceramic total hip arthroplasty.
Shishido T, Yamamoto K, Tanaka S, Masaoka T, Clarke IC, Williams P. J Arthroplasty. 2006 Feb;21(2):294-8

 

13. Surface micro-analyses of long-term worn retrieved “Osteal” alumina ceramic total hip replacement.
Tateiwa T, Clarke IC, Pezzotti G, Sedel L, Kumakura T, Shishido T, Yamamoto K. J Biomed Mater Res B Appl Biomater. 2007 Nov;83(2):562-70.

 

14. Wear of sequentially enhanced 9-Mrad polyethylene in 10 million cycle knee simulation study.
Tsukamoto R, Williams PA, Shoji H, Hirakawa K, Yamamoto K, Tsukamoto M, Clarke IC. J Biomed Mater Res B Appl Biomater. 2008 Jul;86(1):119-24

 

15. Ceramic total hip arthroplasty in the United States: safety and risk issues revisited.
Tateiwa T, Clarke IC, Williams PA, Garino J, Manaka M, Shishido T, Yamamoto K, Imakiire A.

 

16. Wear in molded tibial inserts: knee simulator study of H1900 and GUR1050 polyethylenes.
Tsukamoto R, Williams PA, Shoji H, Hirakawa K, Yamamoto K, Tsukamoto M, Clarke IC. J Biomed Mater Res B Appl Biomater. 2008 May;85(2):314-9

 

17. Comparing ceramic-metal to metal-metal total hip replacements–a simulator study of metal wear and ion release in 32- and 38-mm bearings
Ishida T, Clarke IC, Donaldson TK, Shirasu H, Shishido T, Yamamoto K. J Biomed Mater Res B Appl Biomater. 2009 Nov;91(2):887-96

 

18. Third-body abrasive wear challenge of 32 mm conventional and 44 mm highly crosslinked polyethylene liners in a hip simulator model.
Sorimachi T, Clarke IC, Williams PA, Gustafson A, Yamamoto K. Proc Inst Mech Eng H. 2009 Jul;223(5):607-23.

 

19. Aggressive 3rd-body wear challenge to highly crosslinked polyethylene: A hip simulator model
K. Kubo, I.C. Clarke, T. Sorimachi, P.A. Williams, T.K. Donaldson K. Yamamoto Wear Volume 267, Issues 5–82009,734–742