Nickel ion level in scoliotic patients implanted with nitrogen plasma surface modified nickel-titanium superelastic spinal implant

Author

Yeung, K.W.K. ; Lam, W.N. ; Natarajan, D. ; Wu, S.L. ; Tu, H. ; Chu, P.K. ; Chung, C.Y. ; Lu, W.W. ; Luk, K.D.K. ; Cheung, K.M.C.

Author_Institution

Dept. of Orthopaedics & Traumatology, Univ. of Hong Kong, Hong Kong, China

fYear

2010

Firstpage

1368

Lastpage

1368

Abstract

This paper describes the use of nickle-titanium shape memory alloys as surgical implants to the patients undergoing scoliosis correction surgery. Toxic nickel particulate debris released from these materials, however, remains a major concern particularly pertaining to orthopaedic implants for which fretting is always expected at the implant junction. Therefore, the untreated ends were exposed and contacted with the surrounding human tissues and bloods.

Keywords

biomechanics; biomedical materials; bone; diseases; elasticity; nickel alloys; orthopaedics; plasma materials processing; prosthetics; surgery; titanium alloys; NiTi; fretting; nickel ion level; nickle-titanium shape memory alloys; nitrogen plasma surface modified nickel-titanium superelastic spinal; orthopaedic procedures; scoliotic patients; surgical implants; toxicity; Humans; Implants; Inorganic materials; Medical treatment; Nickel; Nitrogen; Orthopedic surgery; Plasma immersion ion implantation; Shape memory alloys; Titanium alloys;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoelectronics Conference (INEC), 2010 3rd International

Conference_Location

Hong Kong

Print_ISBN

978-1-4244-3543-2

Electronic_ISBN

978-1-4244-3544-9

Type

conf

DOI

10.1109/INEC.2010.5424850

Filename

5424850