
A syndesmotic screw is a metal
screw
A screw is an externally helical threaded fastener capable of being tightened or released by a twisting force (torque) to the screw head, head. The most common uses of screws are to hold objects together and there are many forms for a variety ...
designed to replace the
syndesmosis
A syndesmosis (“fastened with a band”) is a type of fibrous joint in which two bones are united to each other by fibrous connective tissue. The gap between the bones may be narrow, with the bones joined by ligaments, or the gap may be wide a ...
of the human body, usually temporarily. If the syndosmosis is torn apart as result of bone fracture, surgeons will sometimes fix the relevant bones together with a syndesmotic screw, temporarily replacing the normal
articulation.
A syndesmotic screw designed to replace the
inferior tibiofibular articulation
The inferior tibiofibular joint, also known as the distal tibiofibular joint (tibiofibular syndesmosis), is formed by the rough, convex surface of the Medial (anatomy), medial side of the distal end of the fibula, and a rough concave surface on ...
that fix the
tibia
The tibia (; : tibiae or tibias), also known as the shinbone or shankbone, is the larger, stronger, and anterior (frontal) of the two Leg bones, bones in the leg below the knee in vertebrates (the other being the fibula, behind and to the outsi ...
and
fibula
The fibula (: fibulae or fibulas) or calf bone is a leg bone on the lateral side of the tibia, to which it is connected above and below. It is the smaller of the two bones and, in proportion to its length, the most slender of all the long bones. ...
together at the lower joint, is 5–6 cm long and made of a stainless, solid metal.
The screw may inhibit normal movement of the bones and, thereby, the corresponding joint(s). When the natural articulation is healed, the screw may be removed.
References
External links
Syndesmotic injury of the ankle- Wheeless Textbook of Orthopaedics.
Technique of syndesmotic fixation- Wheeless Textbook of Orthopaedics.
Joints
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