Statement Artificial vs. Human Bones

The synbones are manufactured from specially formulated polyurethane foam comprising of a cancellous inner core and a harder outer shell simulating cortical bone. They have been developed primarily for orthopaedic surgical education and are designed to provide the “feel” of working with real bone with similar forces being required to tap and drill our models.

Although the synbones do not have the same biomechanical properties of natural bone, which is stronger than the synbones due to its complex composition, the feedback is very favorable from a number of biomechanical testing facilities that have compared synbones with real bones. Additionally, during ballistics testing synbones have been shown to fracture in a manner very similar to natural bone providing an excellent reproducible simulation.

In summary, synbones provide the feel of real bone and in some instances the mechanical properties of natural bone.

Mechanical Properties

The handling properties of synbones closely simulate those of real bone and are achieved by complex design, moulding and production techniques. This enables synbones to be cut, drilled, tapped and modified by all available orthopaedic instruments.
Even complex fractures and pathological conditions may be mass produced enabling training in large scale surgical skill courses.

Cortical / Cancellous bone models

A transparent cortical shell covering cancellous regions at the distal and proximal ends.
At the mid shaft of long bones this transparent shell forms an intramedullary canal.
These models are therefore mostly used in the training of intramedullary fixation where x-ray is normaly required.

A cortical layer and an inner foam layer representing the cancellous bone (this layer may include an intramedullary canal).
Soft cancellous bone is used in models designed for total joint replacements and internal fixation on long bones.
Medium cancellous bone can be used in the same applications as the soft cancellous bone as well as for external fixation and reference mark pinning.
Hard cancellous bone is used mainly for external fixation.

Osteoporotic models / open cell

Long bone models with a thin cortical layer and an open cell cancellous section at the proximal and distal ends.
The properties of the inlay allow all application techniques of cement injection.
All models may be fractured and delivered with defects on request.

Transparent Cortical Bone Models

A transparent cortical shell covering cancellous regions at the distal and proximal ends.
At the mid shaft of long bones this transparent shell forms an intramedullary canal.
These models are therefore mostly used in the training of intramedullary fixation where x-ray is normaly required.

Solid foam models

These models consist of a single solid rigid foam including an intramedullary canal when required.
Most commonly used for external fixation and pinning.

Soft tissue models

Foam coated Models in order to present a more realistic situation when simulating surgical procedures and positioning implants for minimally invasive techniques.

Structured models

In situations where operating techniques require the presence of soft tissue landmarks, bone models with stylized soft tissue structures including muscles, ligaments, nerves, arteries and veins are available.
Realistic skin to simulate endoscopic surgery

Arthroscopic models

For wet or dry examination, these models are the ideal match for operative arthroscopy techniques.
Inner structures such as capsules and ligaments combine part functionality and a picture very close to reality.

Generic models

These models have highly simplified shapes such as rods, spheres, sheets and blocks.
They are ideal for basic instruction and ballistic testing.