ISSN:
1590-9999
Keywords:
Key words Arthroprosthesis
;
Knee
;
Computer
;
Navigator
;
OrthoPilot
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract The OrthoPilot computerised system assists surgeons in the implantation of total knee prostheses. The technique uses a computer to acquire, in the operating room, data on the anatomical axis of the lower limb where the prosthesis is to be implanted. This is accomplished by infrared transmission diodes which relate information on the size of the femur and on the deepest point of the tibial wear and tear. The software processes the data and provides the surgeon with indications for regulating the incision guides, perpendicular to the mechanical axis, for correcting axial deformities, and for correcting the slope of the prosthetic components. In addition, it gives the size of the femoral component, the height of the tibial incision, the femoral extrarotation and a constant control of the varus-valgus correction and of the pro- and recurvatum of the limb, in both extending and flexing movements. The project was set up by a group of researchers at the University of Grenoble, France, led by D. Saragaglia, in collaboration with Aesculap in Tuttlingen, Germany. We compared the computer-assisted implantation of 25 Search prostheses (Aesculap) (group A) with the implantation of 25 prostheses using the standard technique (group B). The computer-assisted OrthoPilot system for positioning knee prostheses is a valid and reliable technique. This technique is often better than the traditional one, even though it is still not possible to observe a statistically significant difference because of an insufficient number of case histories. The increase in the duration of the operation is kept within acceptable limits. Constant control in the correction of the deformity, elimination of intra- and extramedullary instruments, reproducibility of results, records and assistance for the more important surgical manoeuvres are some of the aspects that impose a less empirical and more sophisticated approach to this type of surgery.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/PL00012201
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