[Primary stability of AO-plate osteosynthesis of the lower cervical spinal column. I. Load-bearing capacity of the cervical vertebrae].
The axial force (twisting moment) leading to breaking of the bony thread using 3,5 mm cortical-screws at the H-plate-fixation for fracture dislocations of the lower cervical spine has been established by means of 316 measurements performed on cadavers. It comes to 0,8471 Nm (8,6360 cmkp). It is suggested that the 3,5 mm cortical screw should be tightened with 0,5886 Nm (6 cmkp) at the fixation. This force provides primary stability at the H-plate without primary instability due to thread-break.
D000328:Adult; D000368:Aged; D001696:Biomechanical Phenomena; D001860:Bone Plates; D002574:Cervical Vertebrae / Q000293:injuries*; D002648:Child; D005593:Fracture Fixation, Internal; D006801:Humans; D008875:Middle Aged
Die primäre Stabilität der AO-Plattenosteosynthese an der unteren Halswirbelsäule. Teil I: Die Belastbarkeit des Halswirbelkörpers.