Zero-P. Zero profile anterior cervical interbody fusion (ACIF) device.

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Screw FixationOption C: Awl and Freehand ScrewC3Insert remaining screwsRepeat step C1 and C2 for the remaining screws.C4Tighten screwsInstruments03.110.002 Torque Limiter, 1.2 Nm,with AO/ASIF Quick Coupling03.617.902 Screwdriver Shaft Stardrive, T8,self-holding03.617.903 Handle with Quick CouplingTighten each screw to at least 1.2 Nm torque, to fully seatand lock the screw head in the plate.Note: It may be necessary (e. g. screw placed off angle) toapply a higher force than 1.2 Nm to fully seat the screw intothe plate. In such cases the screwdriver should be used withoutthe torque limiter.22 Synthes <strong>Zero</strong>-P Technique Guide
Screw FixationOption D: Angled InstrumentsFor screws that are difficult to drill or insert because of interferinganatomy, the angled awl and angled screwdriver maybe used.D1Awl first pilot hole40° 5°2.5° 2.5°Instrument03.617.993 Awl 2.0 mm, angled40° 5°It is recommended that the first hole be created for a caudallypointing screws.2.5° 2.5°Determine the entry point and trajectory for the screw. Thecorrect angulations for the screws are 40° in the caudal orcranial direction. The medial screws point 2.5° laterally andthe lateral screws point 2.5° medially.Note: Lateral screws should always point medially.Insert the awl at the appropriate angle into the screw hole ofthe plate and apply force in the direction of the awl tip whilesimultaneously rotating the handle back and forth.Remove the awl, maintaining alignment of the hole andplate.Important: Intraoperative imaging should be used to verifyawl position.Synthes 23
Page 1: Technique GuideZero-P. Zero profile
Page 4 and 5: Zero-P. Zero profile anterior cervi
Page 6 and 7: Stability similar to that of anante
Page 8 and 9: Indications and ContraindicationsTh
Page 10 and 11: Implant Insertion1ApproachUsing the
Page 12 and 13: Implant Insertion3Pack implant with
Page 14 and 15: Screw FixationOption A: Aiming Devi
Page 20 and 21: Screw FixationOption B: Drill Guide
Page 22 and 23: Screw FixationOption C: Awl and Fre
Page 26 and 27: Screw FixationOption D: Angled Inst
Page 28 and 29: ImplantsZero-P Spacers- Supplied st
Page 30 and 31: Instruments03.617.720-729 Zero-P Tr
Page 32 and 33: Instruments03.110.002 Torque Limite
Page 34 and 35: Screwdriver Stardrive ® , T8, self
Page 36 and 37: Handle with Quick Coupling 03.617.9
Page 38: Bibliography1. Bazaz R, Lee MJ, Yoo

Zero-P. Zero profile anterior cervical interbody fusion (ACIF) device.

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