Hundreds of surgical procedures, reductions, fixations and approaches. Surgical decision making made easy with literature evaluated and prepared for quick. Download scientific diagram | Distribución de las fracturas según la clasificación de AO. from publication: Clinical study of intramedullary and extramedullary. Download scientific diagram | Clasificación AO de la fractura. from publication: Fijación posterior monosegmentaria en fracturas de la columna toracolumbar.

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Pitfalls in diagnosing a compression fracture are: Case 3 Look at the images. The name is derived from the typical fracture following a fall from height and landing on the feet. In some cases it can be difficult to decide whether there is a translation or distraction injury and we have to assume that the traumtic mechanism is a combination of forces.

Case 4 Look at the images. Case 2 Look at the images. In this case of translation there is bilateral facet dislocation and also a horizontal fracture of the spinous process. One of the spinous processes is in two pieces and the two pieces are widely separated. Compression of the spinal cord. These descriptions may thus be misleading. It is a severe type of injury, which always involves the PLC. The x-ray of the C-spine in this patient was normal and did not show the fracture.

The facet joints act against rotational forces. The anterior longitudinal ligament is disrupted.

AO Surgery Reference

A torn PLC has a tendency not to heal and can lead to progressive kyphosis and collapse. You can see the edema related to the fracture of the vertebral body and the massive edema in the paraspinous muscles. There were no fractuas significant differences among these values, but there were epistemological differences. Often unilateral or bilateral facet dislocation is seen in rotational fractures.


Then scroll to the next images. Burst is the result of compression with severe axial loading.

After a fall on his back no fracture was seen on the x-rays. The sagittal reformatted image also shows the cortical disruption. Usually the morphology matches the injury mechanism, but sometimes it does not.

AO Surgery Reference

If the distraction is the main feature, then the morphology is distraction, i. The vertebral body fractures show hardly any compression. At first glance the AP-view doesn’t look very odd. Translation – 3 points PLC: Again look at the first MR-images and decide what is going on.

Most classification systems of spine injuries are based on injury mechanisms and describe how the injury occurred. Continue with the MRI-images. The Holmberg and Gartland classifications had a clasificwcion correlation coefficient of 0.

You could call these compression fractures. Widening of the interspinous space. Once you realize that, it should not confuse you. Burst – 2 points There is retropulsion of a body fragment black arrow PLC: That is until we zoom in and look at the distance between the spinous processes. Sternum fracture Rigid spine Multiple rib fractures at the same levels Non braceable Wounds Pre-existing deformities Sternum fracture The image shows a vertebral fracture with a transverse fracture of the spinous process, but also a fracture of the sternum.


Some of the injuries thought to be due to extension mechanisms, however, turn out to be due to flexion and vice versa. The interobserver agreement was assessed using Kendalls Tau-b ratio; the arithmetic mean was calculated and the ratios were compared with Fishers transformation.

The MRI also shows disruption of the ligamentum flavum and a partial disruption of the interspinous ligament.

AO/OTA Fracture and Dislocation Classification Compendium

Frequently when you have a good CT, you have most of the anatomic information. It is either loss of height of the anterior part of the vertebral body or disruption of the vertebral endplate. Several classifications have been proposed for supracondylar fractures of the humerus.

In both cases the patient is a surgical candidate. Translation – Rotation This type of fracture includes all fractures that are the result of displacement in the horizontal plane: Holmbergs classification is the most recommendable one.

Here is a patient with distraction on the anterior side. Distraction – 4 points PLC: However the most important findings are the horizontal fractures of the posterior elements. The posterior cortex of the vertebral body has to be intact and this feature differentiates a simple compression fracture from the more severe burst fracture. The treatment will depend on the PLC integrity and the neurological status.