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Contribution of Navigation in the Planning of a Total Knee Prosthesis
By Tayot. O (1), Chatain F (2), Denjean S (3), Delalande Jl (4), Gaillard Th (5), Chavane H (1), Chevillotte C (6) in category
1 Clinique du Parc, Lyon. / 2 - Clinique Belledonne, Saint-Martin-d’Hères - Grenoble. / 3 - Polyclinique du Val de Saône, Macon. / 4 - Clinique de la Présentation, Fleury-Les-Aubrais. / 5 - Polyclinique du Beaujolais, Arnas. / 6 - Clinique de Dracy-Le-Fort.
Current clinical outcomes for total knee arthroplasties (TKAs) are good, with implant survival rates of more than 10 years1-3, 27 ; residual pain is often reported, however, some of which can be attributed to problems with contact between the implant and soft tissue.4 These problems may be associated with malposition of the prosthesis or with the footprint of implants whose condyles are wide.4, 5 Therefore, TKA ranges have evolved to include ‘up-sized’ designs, and ‘narrow’ or ‘gender-specific’ femoral implants have now been conceived to provide a better fit between the bone and the implant (especially for women).11-14
The SCORE® total knee prosthesis is an example of a congruent implant with a mobile bearing, and has been on the market since 2002. Excellent outcomes have been reported by various study groups.1-3, 15-17 The prosthesis is characterized by the fact that it was designed from the outset for use with computer-assisted navigation (Amplivision®, Amplitude). A considerable number of these prostheses have been placed with the use of navigation (more than 25,000 computer-assisted procedures out of a total of 136,400 TKAs have been performed over the last 16 years).
As with all first-intention knee prostheses, and maybe even more so with congruent...
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