Interference Screws

Specifications - Interference Screws

Interference screws are a widely used method of fixation during ACL reconstruction, both for bone-to-bone fixation and soft tissue–to–bone fixation. Interference screws are able to achieve early stability with rigid, aperture fixation of graft to host bone. They provide greater strength than is needed during the early rehabilitation period.

  • Interference Screws diameters are 7mm, 8mm, 9mm, 10mm and 11mm. Lengths are 20mm, 25mm, 30mm, 35mm and 40mm.
  • Screws made from pure Titanium and Biodegradable material.
  • Any additional length sizes of this screws will be made on demand.
  • This is Self Tapping Screw. Self Tapping Screws cuts its own thread while being driven into the bone. It makes a small hole while entering the bone which creates a tight friction fit between the threads. This helps fight vibration loosening and allows the parts to be taken apart if needed..
  • Instruments are available for this screw such as Bone Taps, Combined Drill & Tap Sleeve, Counter Sink, Depth Gauge, Drill Bits, Drill Guide, Drill Sleeve, Hollow Mill Screw Removal, Reverse Measuring Device, Screw Drivers and Screw Holding Forceps etc.

Sizes and Uses of Interference Screws

ACLR using BPTB autograft with interference screws fixation has been found to have the least amount of measurable laxity, the fastest graft incorporation time, and low failure rates among the various graft and fixation techniques.

Biodegradable interference screws have been shown to provide at least as strong graft fixation as metal screws. Biodegradable screws do not interfere with imaging techniques and do not need to be removed in revision cases, because the implants have either degraded or can simply be drilled through.