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Mechanical Performance of Metallic Bone Screws Evaluated Using Bone Models
2020
Materials
To evaluate mechanical performance properties of various types of cortical bone screw, cancellous bone screw, and locking bolt, we conducted torsional breaking and durability tests, screw driving torque tests into bone models, and screw pullout tests (crosshead speed: 10 mm/min) after driving torque tests. The 2° proof and rupture torques of a screw, which were estimated from torque versus rotational angle curves, increased with increasing core diameter of the screw. The durability limit of
doi:10.3390/ma13214836
pmid:33137908
fatcat:rzqts6f5nbdwtm7xyittxxajky