Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_
Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_ Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_
Poster Topic: Navigation Abstract number: 23440 ACCURACY AND REPRODUCIBILITY OF POSTERIOR SLOPE ALIGNMENT IN PRIMARY TOTAL KNEE REPLACEMENT USING EXTRA-MEDULLARY TIBIAL JIGS AND COMPUTER NAVIGATION. Gordon HIGGINS, James TUNGGALL, Paul KUZYK, Emil SCHEMITSCH, James WADDELL St Michaels Hospital, University of Toronto, Toronto (CANADA) Methods: 110 primary knee arthroplasties were included over a 4 year period (2005 to 2009). All operations were performed by 2 surgeons using a standardized approach and implants. Group 1 used an extramedullary guide with a 0 degree cutting block tilted by placing 2 fingers between the tibia and guide proximally, and three fingers distally, to produce a 3 degree slope (N=40). Group 2 used computer navigation to produce a 3 degree slope (N=30). Group 3 used an extramedullary guide placed parallel to the anatomic axis of the tibia with a 5 degree cutting block to produce a 5 degree posterior slope (N=40). Posterior tibial slope was measured, from lateral radiographs taken 6 weeks post-operatively, by 2 independent blinded reviewers and averaged. Statistical calculations were performed using SPSS Windows. A one sample t-test determined accuracy. Results: There was excellent agreement between the 2 independent reviewers. The linear correlation constant was 0.87 (p
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. 337
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Poster<br />
Topic: Navigation<br />
Abstract number: 23440<br />
ACCURACY AND REPRODUCIBILITY OF POSTERIOR SLOPE ALIGNMENT IN<br />
PRIMARY TOTAL KNEE REPLACEMENT USING EXTRA-MEDULLARY TIBIAL<br />
JIGS AND COMPUTER NAVIGATION.<br />
Gordon HIGGINS, James TUNGGALL, Paul KUZYK, Emil SCHEMITSCH, James<br />
WADDELL<br />
St Michaels Hospital, University of Toronto, Toronto (CANADA)<br />
Methods: 110 primary knee arthroplasties were included over a 4 year period (2005<br />
to 2009). All operations were performed by 2 surgeons using a standardized<br />
approach and implants. Group 1 used an extramedullary guide with a 0 degree<br />
cutting block tilted by placing 2 fingers between the tibia and guide proximally, and<br />
three fingers distally, to produce a 3 degree slope (N=40). Group 2 used computer<br />
navigation to produce a 3 degree slope (N=30). Group 3 used an extramedullary<br />
guide placed parallel to the anatomic axis of the tibia with a 5 degree cutting block to<br />
produce a 5 degree posterior slope (N=40). Posterior tibial slope was measured,<br />
from lateral radiographs taken 6 weeks post-operatively, by 2 independent blinded<br />
reviewers and averaged. Statistical calculations were performed using SPSS<br />
Windows. A one sample t-test determined accuracy. Results: There was excellent<br />
agreement between the 2 independent reviewers. The linear correlation constant<br />
was 0.87 (p
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