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Comparative Study
Journal Article
Evaluation of Outcomes of Total Knee Replacement with and without a Navigation System.
Ortopedia, Traumatologia, Rehabilitacja 2016 May 6
BACKGROUND: The aim of this study was to compare the results of TKA performed with the use of a navigation system vs. conventional knee arthroplasty and to evaluate the effectiveness of navigation system support in TKA.
MATERIAL AND METHODS: We evaluated patients undergoing TKA for osteoarthritis in the years 2011-2013. Columbus prostheses were implanted in 84 knees. Group 1 included patients in whom TKA was performed with the use of the OrthoPilot Navigation System, and Group 2 was a control group of patientsundergoing conventional TKA. Group 1 ultimately comprised 30 patientsat a mean age of 71.8 years, while Group 2 consisted of 30 patients at a mean age of 73.5 years. Radiographic parameters were evaluated according to the mechanical axis of the leg. Clinical evaluation relied on the VAS and KSSscores.
RESULTS: Mean operation time was 94 minutes in Group 1.It was shorter in Group 2, with a mean of 75 minutes. Postoperative VAS scores did not differ betweenthe groups. Significant improvement was noted between pre- and postoperative in KSS scores in both groups. The control group showed more valgus mechanical axis deviation than varus deviation.
CONCLUSIONS: In experienced hands, navigated surgery time may be similar to that of conventional TKA and give superior results, both clinical and radiographic.
MATERIAL AND METHODS: We evaluated patients undergoing TKA for osteoarthritis in the years 2011-2013. Columbus prostheses were implanted in 84 knees. Group 1 included patients in whom TKA was performed with the use of the OrthoPilot Navigation System, and Group 2 was a control group of patientsundergoing conventional TKA. Group 1 ultimately comprised 30 patientsat a mean age of 71.8 years, while Group 2 consisted of 30 patients at a mean age of 73.5 years. Radiographic parameters were evaluated according to the mechanical axis of the leg. Clinical evaluation relied on the VAS and KSSscores.
RESULTS: Mean operation time was 94 minutes in Group 1.It was shorter in Group 2, with a mean of 75 minutes. Postoperative VAS scores did not differ betweenthe groups. Significant improvement was noted between pre- and postoperative in KSS scores in both groups. The control group showed more valgus mechanical axis deviation than varus deviation.
CONCLUSIONS: In experienced hands, navigated surgery time may be similar to that of conventional TKA and give superior results, both clinical and radiographic.
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