How many planes of control does an orthosis for a burst fracture need to provide?

An orthosis for a burst fracture is designed to offer stability and support to the spine while allowing for proper healing. It needs to provide control in three planes: flexion-extension, lateral bending, and axial rotation.

The reason three planes of control are essential is that burst fractures often compromise the structural integrity of the vertebrae, leading to potential instability in multiple directions. The design of the orthosis must therefore immobilize the spine in all three dimensions to limit movement that could exacerbate the injury or risk further damage during the healing process.

This comprehensive approach helps to ensure that the fractured vertebral body is not further displaced and aids in the proper alignment of the spine, which is crucial for recovery. By providing control in all three planes, the orthotic device can effectively stabilize the injured area while allowing for controlled movement when appropriate, aligning with best practices in orthotic management of spinal injuries.