Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Trauma - Hip
Abstract number: 26570
A NEW SUPERELASTIC CABLE FOR BONE FIXATION IN TRAUMA:
COMPARISON WITH COMMONLY USED ORTHOPAEDIC CABLES
Fanny CANET 1 , Yannick BARIL 2 , Guillaume BISSONNETTE 1 , Vladimir
BRAILOVSKI 2 , Yvan PETIT 2 , Georges-Yves LAFLAMME 1
1 Hopital du Sacre-Coeur, Montreal (CANADA), 2 École de Technologie Supérieure,
Montreal (CANADA)
Purpose The initial enthusiasm for metallic cables has declined considerably with the
high complication rate. Metal materials used do not provide enough elasticity that is a
major problem limiting their ability to maintain compression. A new Nickel-Titanium
super-elastic cable (SE) was developed and compared with commercial multi-braided
cerclage cables: Stainless Steel (SS) and Cobalt-Chrome (CoCr) Zimmer cables.
Method SS, CoCr, and SE cables were tested on a Material Testing Apparatus (MTS
MiniBionix), in water (37C) reproducing in vivo conditions. They were loaded for 12
hours at a constant strain of the to manufacturers recommended installation force
(356 N ie 80 pounds) released and reloaded to failure. Force relaxation (%loss of
initial load after 12h), relative elongation ie elasticity (%) and force to failure (N) were
measured.Results SE cables were 4 times more elastic than the CoCr and SS cables
(p