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Gissane Angle [aka *critical angle; critical angle of Gissane], like the Böhler angle, can be used to help determine the presence of a calcaneus fracture on a radiograph.

Explore iem-student.org's photos on Flickr. iem-student.org has uploaded 1032 photos to Flickr. crucial angle of Gissane. An angle directly inferior to the lateral process of the talus, formed by a line drawn along the posterior facet of the calcaneus and a line drawn from the anterior process to the sulcus calcaneus, and best seen on a lateral plain film of the calcaneus and hind foot. The crucial angle of Gissane is one of two angles (the The average Gissane angle in our study is 126.79 degrees, whereas in the western population, it is 122.5 degrees. The difference between the western and Indian value in Gissane angle is statistically significant (P < 0.05).

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Bohler angle and the crucial angle of Gissane are used on the evaluation of calcaneus fractures. However, few authors have described the variation of the angles when the calcaneus is growing. Boehler and Gissane angles are the corner point for calcaneal fractures. Especially, Boehler angle (BA) is the predictor of this fracture type2-4.

Calcaneal intraosseous cyst (yellow arrow) arising through a narrow cortical defect (yellow arrowhead) at the angle of Gissane near the distal attachment sites of the talocalcaneal interosseous ligament and the roots of the inferior extensor retinaculum (green arrow).

The Bohler's angle otherwise known as. Gissane angle, also known as the "critical angle", is an angular measurement made directly inferior to the lateral process of the talus.

Two parameters namely Bohler`s and Gissane angles were measured, independently by two radiologists to prevent inter-observer variation. Results: The Bohler`s and Gissane angles for the Indian population are statistically different from those seen in the published data for other population groups, as evidenced by the P value (P < 0.05).

Gissane angle

*Corresponding author.

2012-12-04 · The Gissane (crucial) angle is formed by two strong cortical struts extending laterally, one along the lateral margin of the posterior facet and the other extending anterior to the beak of the calcaneus. The average Gissane angle in our study is 126.79 degrees, whereas in the western population, it is 122.5 degrees. In this study, Bohler angle and the crucial angle of Gissane in paediatric population were measured using lateral foot radiographs of 429 patients, from 0 to 16 years of age. The control group was composed of 70 adult patients.
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Various angles have traditionally been used when analysing lateral views of the os calcis to detect and quantify intra-articular displace-ment. Bohler’s angle4 and Gissane’s angle5 are commonly measured and used in the manage-ment of adult fractures. It is recognised that, as the os calcis grows its morphology changes, This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.: You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work 2011-01-10 · The paediatric Bohler's angle and crucial angle of Gissane: a case series. Coronavirus: Find the latest articles and preprints DOI: 10.1007/s00402-020-03566-5 Corpus ID: 221111340. Morphological analysis of Gissane’s angle utilising a statistical shape model of the calcaneus @article{Schmutz2020MorphologicalAO, title={Morphological analysis of Gissane’s angle utilising a statistical shape model of the calcaneus}, author={B.

Explore iem-student.org's photos on Flickr. iem-student.org has uploaded 1032 photos to Flickr. crucial angle of Gissane.
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Broden's view • Positioning – 20° IR view (mortise) – 10°-40° plantar flex  16 Apr 2018 fixation. Pre- and postoperative radiographic studies were performed to measure the angles of Böhler and Gissane.


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The operation increased Gissane angle of patients in Sanders II, III, and IV groups. For the Sanders II patients, the Gissane angles in the post-operation group (124.3±9.6) were significantly higher compared to the pre-operation group (104.8±12.8) (Figure 4A, p<0.05).

Bohler's angle, or the "Tuber Angle", is another normal anatomic landmark seen in lateral radiographs. Clinically, Gissane’s angle is defined on a lateral radiograph by two strong cortical struts, one extending along the lateral border of the posterior facet to the fossa calcanei and the other from the fossa along the lateral border of the sinus tarsi [ 10 ]. Gissane's angle ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers. The apex of the angle of Gissane is at the location of chronic talar impact with lateral hindfoot impingement, and this is the center of the bony changes, therefore the angle of Gissane, or “calcaneal angle” can be used as a term to identify the calcaneal location of pathology. The Angle of Gissane is the angle formed by the intersection of downward and upward slopes of the calcaneal superior surface on lateral images. Gissane's angle ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers.