Effect of anchor threads on the pullout strength: A biomechanical study

Journal of Orthopaedics
Hideaki NagamotoEiji Itoi

Abstract

Pullout tests to determine the effect of anchor threads on the pullout strength was conducted by using universal testing machine, synthetic cancellous bone and thread-less metallic anchor. Anchors were inserted at 45°, 90° or 135° from the surface and they were pulled at 45° from the surface. The maximum load to failure was compared among the 3 insertion angles. Pullout strength of the anchors inserted at 45° was significantly greater than those inserted at 90° or 135°. Pullout strength of the thread-less anchor was the greatest when it was inserted at 45° to the bone surface. level II.

Citations

May 28, 2019·Journal of Orthopaedic Surgery and Research·Chih-Kai HongWei-Ren Su

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