Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Navigation
Abstract number: 23480
IS THE COMPUTER-ASSISTED SURGERY USEFUL FOR TOTAL WRIST
PROSTHESIS?
Sybille FACCA, Anes GHERISSI, Philippe LIVERNEAUX
Hand Department - Strasbourg University, Illkirch (FRANCE)
Total joint replacement appeals more and more regularly to computer-assisted
surgery, whether it is in the knee or in the hip. Applications begin to be born in
surgery of the upper limb in particular for shoulder prostheses. We wanted to know
what could be the specifications for the implantation of the total wrist prostheses by
computer-assisted surgery.Our series contained six total prostheses of wrist. After a
dorsal approach, the distal radius was exposed. A device of location containing 3
markers was fixed to the surface of the radius. Fluoroscopic images of anteroposterior
and lateral views were realized, then fitted in a fluoroscopic navigation
system. The ideal axis of the radius was determined then virtually directly to the
screen of the compute. Once the surgical drill calibrated, the K-wire was put in the
axis of the radius by following the indications of the computer. The tools of cutting
guide were then threaded on the K-wire. Then, the procedure was pursued according
to the conventional technique. In conclusion, during the implantation of a total wrist
prosthesis, it seems more logical to determine first the axis of the radius, what allows
the fluoronavigation, rather than to base itself on a location outside or intuitive as in
the conventional techniques. We think that this preliminary study allowed to show the
interest of the computer-assisted surgery in this indication.
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