tubular fixator
Callus distraction in segmental transport for closure of traumatic or operative bone defects can be performed with the tubular fixator in various ways. Depending on the soft tissue situation and personal preference segmental shifting may either be achieved by tension wires running through the soft tissues (Augsburg model) or by percutaneous Schanz screws (Basel model).

Schanz screws

Schanz screws are partially threaded pins. These are available in different diameters and lengths (shaft, threaded part) and with different tips. Standard screws have trocar-shaped tips. They require predrilling. Self-drilling screws have a very sharp and specially designed tip that drills and cuts the thread in one pass. Schanz screws are available in steel. The fixation of the pin is so firm that an anesthetic is often required for removal.

Steinmann pins

Steinmann pins are used as transosseous pins. They have a trocar tip and insertion requires predrilling.

Rods/tubes

Stainless steel tubes and carbon-fiber rods for the system.
The tubular fixators consist of systems in three sizes, depending on the size of the rod:
• large: 11 mm tubes/rods with Schanz screws from 4 to 6 mm;
• medium: 8 mm tubes/rods with Schanz screws from 3 to 6 mm;
• small: 4 mm tubes/rods with Schanz screws from 1.8 to 4 mm;
These systems are compatible with each other.

Clamps

They provide the connection between the tubes or rods and the pins. Likewise, rods or tubes can be connected to each other using the appropriate clamps (tube-to-tube). If one clamp allows the connection of both tubes and rods, they are called combination clamps. Both single-pin and multipin clamps are available.