One of the technologies MiST employ is the Ilizarov frame used to treat complex bone fractures.
The Ilizarov fixator is an external limb device system consisting of a series of rings and wires, which is used as part of limb reconstructive and limb lengthening surgery.
The frame and wires cost approximately £4000, however MiST source many donated frames suitable for second use and beyond.
Our medics donate their time and we source funding for additional costs - therefore MiST are able to offer high cost, highly skilled and high tech surgery to some of the poorest people in the world.
A key feature of all MiST projects is the education of medics abroad. MiST are able to engage experts from many countries via multi-disciplinary teaching methods.
Below is a short animation showing how the frame works over time.
Ilizarov Frame
source: MARTIN L., FARRELL M., LAMBRENOS K. & NAYAGAM D. (2003) Journal of
Advanced Nursing 43(5), 478–487
Living with the Ilizarov frame: adolescent perceptions
"During reconstructive surgery an osteotomy is performed, and this creates a small break in the bone which is required to provide a space potential for the promotion of bone growth.
The Ilizarov frame is then built around the affected limb. The first stage of frame construction involves inserting a series of thin tension wires, called Kirchner wires, through the bone to be lengthened. The blood and nerve supplies to the soft tissue are not compromised because of the small diameter of the
wires (Nance & Mardjetko 1994).
These wires are then attached to two or more metal rings placed around the limb, and these rings are then connected to telescopic rods. These rods enable the length of the whole frame to be extended."
"Following application of the frame, the patient requires a short period of bedrest to allow for resolution of surgical responses before the process of limb lengthening/correction is started. Approximately 7 days after application the telescopic rods are lengthened by turning a series of nuts, a process known as distraction. Through distraction the two ends of bone are pulled a short distance apart. This creates a small gap, which then stimulates bone growth to occupy the space created (osteogenesis)."
"Typically, the amount of distraction exerted is 1 mm/day. The Ilizarov frame remains in position for approximately 4–12 months, the time being determined by the total amount of limb lengthening or correction required. The Ilizarov technique can be used successfully to stimulate limb lengthening
by as much as 5 cm."
