Farrell Michael, Mathieson Andrew, Chung Peter, Heller Jane, Clarke Stephen P, McDonald Mary Kate, Cardoni Andrea
Division of Companion Animal Studies, University of Glasgow, Glasgow, UK.
Vet Surg. 2011 Aug;40(6):694-707. doi: 10.1111/j.1532-950X.2011.00855.x. Epub 2011 Jul 19.
To test the cutting performance of 2 commercially available oscillating saws designed for use during tibial plateau leveling osteotomy (TPLO) and to evaluate the influence of saline irrigation on cutting performance.
In vitro experimental study.
Composite polyurethane test blocks (n=40); 24 m TPLO saw blades.
Controlled force cutting tests were performed using custom-made laminated bone substitute blocks to model the canine proximal tibia. Half of the trials were irrigated with 0.9% saline solution. Outcome measures were test block temperature (measured 1.5 m from the cutting zone), cutting rate, and cutting surface wear. Durability was measured by recording change in performance over multiple consecutive trials.
The Synthes blade cut the test blocks with ∼64% less heat generation and at a 63% faster cutting rate compared with the Slocum blade. Although wear of the Synthes blade was ∼50% greater after 19 uses, this did not negatively impact cutting performance. Saline irrigation produced no significant effect on peak cutting temperature but significantly reduced cutting rate for both saws.
Our results favor the Synthes blade in terms of cutting performance and the Slocum blade in terms of wear resistance.
测试2种市售的用于胫骨平台水平截骨术（TPLO）的摆动锯的切割性能，并评估生理盐水冲洗对切割性能的影响。
体外实验研究。
复合聚氨酯测试块（n = 40）；24片TPLO锯片。
使用定制的层压骨替代块模拟犬近端胫骨进行控制力切割试验。一半试验用0.9%生理盐水冲洗。观察指标为测试块温度（在距切割区1.5米处测量）、切割速度和切割表面磨损。通过记录连续多次试验中的性能变化来测量耐用性。
与Slocum锯片相比，Synthes锯片切割测试块时产生的热量减少约64%，切割速度快63%。尽管Synthes锯片在使用19次后的磨损约大50%，但这并未对切割性能产生负面影响。生理盐水冲洗对最高切割温度无显著影响，但显著降低了两种锯的切割速度。
我们的结果表明，在切割性能方面Synthes锯片更优，在耐磨性方面Slocum锯片更优。
