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[Navigator concept. Optimizing the procedure for navigated total knee arthroplasty]
H Windhagen1, F Thorey, S Ostermeier
1Orthopädische Klinik, Medizinische Hochschule, Annastift, Hannover. windhagen@annastift.de
Background:
This study addresses work sharing during navigation-assisted total knee arthroplasty. Specifically, the concept is introduced of a "navigator" assistant who operates the navigation system during surgery while the surgeon concentrates on the primary steps of surgery.
Methods:
In a prospective study of 40 total knee arthroplasties, one group of patients was treated using the navigator concept, a second group was treated using a conventional navigation setup, and a third group was treated with conventional internal and external alignment jigs. Surgery time and outcome parameters were compared.
Results:
Results show a significant difference in surgery time between the three groups. The conventional and navigator concept groups showed similar surgery times; however, the navigation group without navigation concept exhibited longer surgery time.
Conclusions:
The navigator concept represents a highly effective principle to minimize surgery time needed during navigated total knee arthroplasty.
