The basic goal of fracture fixation is to stabilize the fractured bone, to enable fast healing of the injured bone, and to return early mobility and full function of the injured extremity.
External fixation is a technique used to help heal severely broken bones. This type of orthopedic treatment involves securing the fracture with a specialized device called a fixator, which is external to the body. Using special bone screws (commonly called pins) that pass through the skin and muscle, the fixator is connected to the damaged bone to keep it in proper alignment as it heals.
An external fixation device may be used to keep fractured bones stabilized and in alignment. The device can be adjusted externally to ensure the bones remain in an optimal position during the healing process. This device is commonly used in children and when the skin over the fracture has been damaged.
There are three basic types of external fixators: standard uniplanar fixator, ring fixator, and hybrid fixator.
The numerous devices used for internal fixation are roughly divided into a few major categories: wires, pins and screws, plates, and intramedullary nails or rods.
Staples and clamps are also used occasionally for osteotomy or fracture fixation. Autogenous bone grafts, allografts, and bone graft substitutes are frequently used for the treatment of bone defects of various causes. For infected fractures as well as for treatment of bone infections, antibiotic beads are frequently used.
Features & Benefits
Fractures of the ankle joint are a common occurrence and can result from a variety of causes, including sports injuries, falls, and motor vehicle accidents. These fractures can be difficult to manage, especially when they involve joint fragments. One of the most effective treatments for such fractures is the use of a dynamic axial ankle joint fragment external fixator. In this article, we will provide an overview of this device, its components, its indications, and its advantages over other treatment options.
A dynamic axial ankle joint fragment external fixator is a device used to stabilize fractures involving the ankle joint, particularly those involving joint fragments. It is a type of external fixator that uses a series of pins and bars to stabilize the fracture and allow for controlled motion of the joint during the healing process. The fixator is applied externally, meaning that it is not surgically implanted, and is typically removed once the fracture has healed.
The components of a dynamic axial ankle joint fragment external fixator typically include:
Pin fixation: Pins are inserted into the bone on either side of the fracture and attached to the bars of the fixator.
Bar fixation: Bars are attached to the pins and to each other, creating a stable framework around the fracture.
Dynamic hinge: A hinge is included in the fixator to allow controlled motion of the joint during the healing process.
Compression/distraction device: A compression/distraction device is included in the fixator to allow for controlled compression or distraction of the fracture site as needed.
A dynamic axial ankle joint fragment external fixator is typically used in cases where other treatments, such as casting or surgical fixation, are not appropriate. Indications for use include:
Fractures involving joint fragments
Fractures with significant soft tissue injury
Fractures in patients with poor bone quality or other medical comorbidities that make surgical fixation difficult
Fractures in patients who are not able to tolerate a cast or other immobilization device
There are several advantages to using a dynamic axial ankle joint fragment external fixator over other treatment options:
Allows for early mobilization of the joint, which can help prevent stiffness and improve overall function.
Provides stable fixation of the fracture, which can lead to improved healing and better long-term outcomes.
Can be used in patients who are not able to tolerate a cast or surgical fixation.
Allows for easy adjustment of the compression or distraction of the fracture site as needed.
Is minimally invasive, meaning that there is less risk of complications compared to surgical fixation.
Like any medical procedure, the use of a dynamic axial ankle joint fragment external fixator is not without risks and complications. Some potential risks and complications include:
Infection at the pin insertion site
Pin loosening or breakage
Soft tissue irritation or damage
Joint stiffness or instability
Nerve or blood vessel damage
A dynamic axial ankle joint fragment external fixator is a valuable tool in the management of ankle joint fractures, particularly those involving joint fragments. It allows for early mobilization of the joint and provides stable fixation of the fracture, leading to improved healing and better long-term outcomes. While there are risks and complications associated with the use of this device, it is generally safe and well-tolerated by patients.