Gissane angle, also known as the "critical angle", is an angular measurement made directly inferior to the lateral process of the talus. It is formed by the downward and upward slopes of the calcaneal superior surface.

102 - Critical angle of Gissane *In 1947, Gissane described his critical angle or crucial angle. *He noted a distinct angular cortical platform that parallels the lateral process of the talus on lateral radiographic projection. *This cortical density represents the dense subchondral bone lying beneath the posterior, anterior and middle facets.

The sample had a mean Bohler angle of 35.4° ± 5.9° and a mean crucial angle of Gissane of 110.5° ± 7.4°. This meta-analysis showed that there was no significant difference between the two groups regarding the Böhler angle (P = 0.44), Gissane angle (P = 0.06), calcaneal width (P = 0.09) and calcaneal height (P = 0.44) postoperatively and at the last follow-up. 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.

(CCA). Abstract Introduction: The calcaneus is the largest and strongest tarsal bone. It is the most com-. The conventional radiographs were evaluated in which type of fracture, and Böhler's, Gissane's, and calcaneal compression angles were determined. Also, the CT bohler angle. Bohler's angle. gissane angle.

angle between line from highest point of anterior process to highest point of posterior facet + line tangential to superior edge of tuberosity; measured on lateral view ; normal 20-40° represents collapse of the posterior facet; increased angle of Gissane .

The Angle of Gissane is the angle formed by the intersection of downward and upward slopes of the calcaneal superior surface on lateral images.

Art.-No. 489083. Material/surface: Aluminium, Stainless steel design, light.

Roe M, Murphy JC, Gissane C, Blake C. Hamstring injuries in elite (hip angle), standing kick (hip angle) and the laying kick (knee angle)

Table 1: Bohler’s and Gissane’s angles in the study population Number of ankles measured Mean SD Bohler's angle is the angle formed between these two lines. A normal Bohler's angle is approximately 25 to 40 degrees.

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Key words: Boehler angle; Gissane angle; pes planus; reliability. ÖZET. 10 Aug 2016 Critical Angle of Gissane: Measured on lateral radiograph, this “critical angle” is formed by the downward and upward slopes of the calcaneal 26 Feb 2019 terms of the SS, PASS and LAS placement and in terms of the parameters including Bohler's angle, Gissane's angle, and the calcaneal width. Terms in this set (10). Bohler's angle.

Bohler angle and the crucial angle of Gissane were measured in 429 children. The sample was mainly composed of two groups: 9 to 12 years of age (39%) and 13 to 16 years of age (31%). In the sample group, the mean Bohler angle was 35.4° ± 5.9° (95% confidence interval [CI]: 23.6°-47.2°) and the mean crucial angle of Gissane was 110.5° ± 7.4° (95% CI: 95.7°-125.3°).
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Our data suggest that there is wide disagreement among surgeons regarding Böhler's angle and the crucial angle of Gissane in displaced intra-articular

Within the relevant literature, normal GAs have been reported in the range of 96–152°. The Angle of Gissane is the angle formed by the intersection of downward and upward slopes of the calcaneal superior surface on lateral images. The Angle of Gissane, or "Critical Angle", is the angle formed by the downward and upward slopes of the calcaneal superior surface.

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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). 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.