Technical Information sections:
Technique Guides - A listing of some of our technique guides, brochures, wall charts, and inventory control forms.
Care and Handling - A guide detailing specific warnings, precautions, adverse effects, sterility and implant usage.
Materials - Details on the stainless steel used in our products.
Implant Guide - Information on the plates and screws available in the Synthes catalog.
Instrument Guide - Information on some common instrumentation available in the Synthes catalog.
DCP (Dynamic Compression Plate) DCP Plate Hole |
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  | - Incorporates an incline in the hole that converts screw compression into plate translation and compression of the bone fracture
- Accepts cortex screws that may be placed in either load or neutral positions, depending on whether or not interfragment compression is desired (see Universal Drill Guide for more detail).
- Allows 40° of longitudinal screw angulation and 7° of transverse screw angulation
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| LC-DCP (Limited Contact Dynamic Compression Plate) Grooved undersurface |
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 | - Provides limited contact between plate and bone, minimizing the chance for temporary osteoporosis under plate
- Allows for periosteal callus formation at the fracture site
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 | LC-DCP Plate Hole
- The dynamic compression unit (DCU) is symmetrical and provides bidirectional compression
- Allows 80° of longitudinal screw angulation and 14° of transverse screw angulation
- Accepts cortex screws that may be placed in either load of neutral positions, depending on whether interfragment compression is desired (see Universal Drill Guide for more detail)
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 | Uniform Stiffness
- Allows smooth contouring of the plate to the bone
- Protects plate from localized high bending stress
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LCP (Locking Compression Plate) |
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 | - Locking screws create a fixed angle construct, resulting in angular stability
- Tapered end for submuscular plate insertion, minimizes tissue trauma
- Limited-contact plate design reduces plate-to-bone contact, protecting vascularity
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| LCP Plate Holes
Combi holes allow placement of standard cortex and cancellous bone screws on one side or threaded conical locking screws on the opposite side of each hole A. Threaded hole section for locking screws
B. Dynamic compression unit (DCU) hole
section for standard screws
C. Locking screw in threaded side of plate
head
D. Cortex screw in compression side of
plate hole
- Dynamic Compression Unit portion of hole allows 40° of longitudinal screw angulation and 14° of transverse screw angulation
Stacked Combi Holes accept either cortex, cancellous, or locking screws. |
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Cortex Screws |
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 | - Used for bicortical fixation in diaphyseal bone
- Self-tapping screws are standard in all sets
- Non-self-tapping screws are also available
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| Cancellous Bone Screws |
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 | - Used for fixation in poor quality or metaphyseal bone
- Deeper threads and coarser pitch maximizes the surface area of the threads that is in contact with the bone, thereby increasing the screw's holding power in this softer bone.
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| Locking Screws |
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 | - Used with the Locking Compression Plate (LCP)
- Conical, double-lead machine thread on head locks into threaded Combi-hole in the place
- Creates a fixed-angle construct
- Large core diameter provides improved bending and shear strength
- StarDrive recess provides torque transmission to the screw, while retaining the screw without the use of a holding sleeve
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| Screw Fixation |
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| Bicortical cortex screw fixation is the traditional method of compressing a plate to the bone. Friction between the plate and bone maintains stability. Therefore, bicortical screws require (2) cortices of fixation to achieve stability (Image A).
Unicortical locking screws provide stability and load transfer at the near cortex due to the threaded connection between the plate and screw. Screw stability and load transfer are accomplished at two points along the screw: at the locked screw head and at the near cortex (Image B).
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