European journal of trauma and emergency surgery : official publication of the European Trauma Society
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Eur J Trauma Emerg Surg · Feb 2018
The effect of different torque wrenches on rotational stiffness in compressive femoral nails: a biomechanical study.
Rotation instability and locking screws failure are common problems. We aimed to determine optimal torque wrench offering maximum rotational stiffness without locking screw failure. ⋯ Rotational stiffness and fracture site compression value produced by 3 Nm torque wrench was not satisfactory. To obtain maximum rotational stiffness and fracture site compression value without locking screw failure, 6 Nm torque wrench in compression nails and 8 Nm torque wrench in novel compression nails should be used.