Question
Identify the treatment done in the picture below ?
A. Figure of 8 tension band wiring.
B. Figure of 6 tension band wiring.
C. Figure of omega tension band wiring.
D. None of the above.
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Correct Answer » A Explanation |
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The treatment done in the photograph above represents figure of 8 tension band wiring.
Principle of «tension band»
To induce interfragmentary compression on a bending fracture a “tension band” is applied on the “tension side” of the bone. The “tension band” may be an implant (wire, plate). The principle makes use of the functional movement of the limb. Tension forces are converted into compression forces, provided the compression cortex is not deficient.
Indications for tension band wiring
Indications are eccentrically loaded articular fractures. Tension band wiring is a fixation technique which results in absolute stability. Interfragmentary compression and direct bone healing is obtained. Other fixation methods leading where absolute stability is achieved are fixations with lag screw and fixation with plate and screws. Wires are used as tension band most commonly in patella and olecranon fractures.
Other indications are tuberosity of the humerus, of the lateral and medial malleoli, and of the trochanter of the femur.