Gillis J P, Zardiackas L D, Gilbert J A, St John K R
Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Starkville.
Vet Surg. 1992 Sep-Oct;21(5):362-6. doi: 10.1111/j.1532-950x.1992.tb01712.x.
Paired equine third metacarpal bones were drilled and tapped for 4.5 mm and 5.5 mm cortical screws. Tapping was done by hand or with an air-driven reversible orthopedic drill. Screws were inserted and subjected to extraction forces to failure of the osseous threads or the screws. There was no difference in holding power of either screw size between hand-tapped and power-tapped holes.
对成对的马第三掌骨进行钻孔并攻丝，以适配4.5毫米和5.5毫米的皮质骨螺钉。攻丝可手动完成，也可使用气动可逆式骨科钻。插入螺钉并施加拔出力，直至骨螺纹或螺钉失效。手动攻丝孔和动力攻丝孔中，两种尺寸螺钉的固定力没有差异。
