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4Lag screw insertion

Short oblique head fracture of the proximal phalanx – Lag screw with protection plate

Screw length pitfalls

Ensure that a screw of the correct length is used.

  • Too short screws do not have enough threads to engage the cortex properly. This problem increases when self-tapping screws are used due to the geometry of their tip.
  • Too long screws endanger the soft tissues, especially tendons and neurovascular structures. With self-tapping screws, the cutting flutes are especially dangerous, and great care has to be taken that the flutes do not protrude beyond the cortical surface.