A novel artificial prosthetic replacement for the proximal interphalangeal joint of the hand--from concept to prototype.
This article describes the development of a proximal interphalangeal (PIP) joint prosthesis based on the principles of replicating anatomical surface components, the use of macrolocking intramedullary stem and the use of a cobalt-chrome alloy material. The design features are intended to obtain an optimal range of motion while retaining stability and longevity. The final prototype, for which a patent has been filed, is described.
Department of Orthopaedics and Traumatology, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong SAR, PR China. spchow@hkucc.hku.hk
S P
SP
Chow
K W
KW
Lam
I
I
Gibson
A H W
AH
Ngan
W
W
Lu
W Y
WY
Ip
K Y
KY
Chiu
D002858:Chromium Alloys; D005384:Finger Joint / Q000601:surgery*; D006801:Humans; D008422:Materials Testing; D019736:Prostheses and Implants
D002858:Chromium Alloys