NCB® Periprosthetic Femur Plate System

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The Polyaxial Locking Plate System for Treatment of Periprosthetic Fractures of the Femur

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The innovative design and polyaxial technology of the NCB (Non-Contact Bridging) Periprosthetic Locking Plate System allow for secure bicortical screw fixation around the stem of an implanted prosthesis. This comprehensive system, which includes proximal and distal femur plates, as well as curved femur shaft plates, helps increase stability and provides flexibility in the treatment of periprosthetic fractures.

The NCB Periprosthetic Femur System is a line of polyaxial locking plates for the treatment of femur fractures, particularly periprosthetic femur fractures. Innovative plate designs combined with the proven polyaxial NCB Locking Plate Technology offer solutions for fixation of particularly complex periprosthetic fractures. The system consists of a Proximal Femur plate, a Distal Femur plate, and a Curved Femur Shaft plate.

The NCB Periprosthetic Proximal and Distal Femur Plates are wider in the region of the prosthesis and have offset holes that may allow bicortical screw placement in the area of the prosthesis.

Innovative Periprosthetic Plate Design

Diagonal Three Hole Pattern

All NCB Periprosthetic Plates provide a diagonal three hole pattern, which allows for multiple screw options:

• Offset holes allow for easier screw placement around the prosthesis and may allow bicortical fixation.
• The central screw holes can accommodate Unicortical Screws, Cable Buttons and Cables

Differently Shaped Scallops

• Reduced and uniform plate stiffness
• Better plate contouring across solid cross-sections, away from holes.

95° Angled Distal Hole

The most distal central plate hole of the Distal Femur Plate is angled at 95° to the plate shaft to allow screw insertion parallel to the joint. This can help reduce the fracture and facilitate realignment of the anatomic axis of the femur.

NCB Curved Femur Shaft Plate

Symmetric Design

One plate for left and right femurs due to symmetric design.

Compression Slots

Two compression slots provide approximately 1 mm of compression each.

Articulated Tension Device

One hole at each end of the plate allows for connection of the Articulated Tension Device to achieve additional compression if needed.

Polyaxiality

The NCB Plate Technology allows polyaxial screw placement (30° cone) with screw locking achieved through the use of locking caps that are threaded into the plate holes. The locking construct improves stability especially in poor bone quality.

Non-Contact Bridging

In the locked mode the NCB Periprosthetic Plate acts as an internal fixator without contact between the plate and the bone surface, which may reduce the risk of impairment to the periosteal blood supply. This Non-Contact Bridging concept can also be controlled through the use of 1, 2, or 3 mm spacers, which are threaded into the plate holes prior to plate insertion.

Periprosthetic Fracture Reduction

Before locking, NCB Screws can also act as lag screws. Therefore, NCB Screws can be used for periprosthetic fracture reduction and to apply interfragmentary compression, a feature not offered with conventional locking systems.