Article

Despite numerous advantages, knee disarticulations (KDs) are rarely performed
because of the anticipated KD prosthesis fitting problems that include the
positioning of the knee joint distally from the KD socket. This results in
lengthening of the thigh and subsequent shortening of the shank. The objective of
this study was to assess the cosmetic effect of the knee joint in a KD prosthesis
by determining the extent of the lengthening of the thigh and the shortening of
the shank. This lengthening and shortening were measured through an experimental
setup using laser techniques. These measurements were made of 18 knee joints used
in KD prostheses. Lengthening of the thigh varied between 23 and 92 mm, and
shortening of the shank varied between 3 and 50 mm. The polycentric knees Medi
KH6 and Medi KHF1 showed the least lengthening of the thigh, and the polycentric
knees Teh Lin Prosthetic & Orthotic Co. Ltd Graph-Lite and Medi KP5 showed the
least shortening of the shank.

Langue : ANGLAIS