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Updated: Dec 15, 2025
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Published on: May 5, 2023
Comparison of Tip- Versus Hub-Oscillating Saw Blade Control in a Total Knee Arthroplasty Model
David D Christensen1, Bruce D Beynnon1, Stephen D Daniels2
1Department of Orthopaedics and Rehabilitation, University of Vermont, Burlington, VT.
Background:
Oscillating saws are commonly used for bone preparation in total knee arthroplasty but can cause injury to the posterior neurovascular bundle during tibial resection. Tip-oscillating saw blades are a recent innovation that could improve saw control due to decreased excursion; however, the tactile feedback to the surgeon is different.
Methods:
To compare traditional hub and new tip-oscillating saw blades, 16 participants of varying levels of experience were video-recorded during composite tibial bone model resections to measure posterior saw blade plunge. Subjective perceptions of saw control and preference were also surveyed.
Results:
Saw blade design and level of surgical experience did not produce a significant difference in posterior saw blade plunge (P > .05). Independent of saw blade design, subjects with no previous saw experience had significantly decreased posterior tibial plunge over subsequent resections. Tip-oscillating saw blades were perceived to be easier to use and control by less experienced participants (P = .0163).
Conclusion:
Tip-oscillating saw blades do not alter the risk of posterior tibial saw plunge compared with traditional saw blades.
