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Surgical and Radiologic Anatomy

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15.10.2019 | Original Article

Defining the shape of the scapulothoracic gliding surface

verfasst von: Tomas Paquet, Robin Van Den Broecke, Stijn Casier, Jan Van Houcke, Lieven De Wilde, Alexander Van Tongel

Erschienen in: Surgical and Radiologic Anatomy | Ausgabe 11/2019

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Abstract

Purpose

The aim of the study is to evaluate the difference in shape of the upper part and lower part of the Scapulothoracic Gliding Surface (STGS).

Methods

3D-CT images of the thoracic cage of 50 patients were created in MIMICS ^®. Three anatomical landmarks (insertion m. serratus anterior on 5th rib; transverse process of 2th and 7th vertebra) were used as an anteroposterior cutting plane to define the STGS. The upper part of the STG was defined as rib 2–5 and the lower part as 5–8. Next, in MATLAB ^®, a script was used to create the sphere with best fit for upper and lower parts of STGS. The Root-Square-Mean Error (RSME) (mm) between two closest points on the fitted sphere and the STGS of both parts were calculated to determine the goodness-of-fit.

Results

The RSME was found to be significantly lower for the area ribs 2–5 (mean 7.85 mm, SD 1.86) compared the area of ribs 5–8 (mean 10.08 mm, SD 1.90).

Conclusion

The STGS of the upper thoracic wall (2–5) is more spherical shaped than the STGS of the lower thoracic wall (rib 5–8).

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Titel: Defining the shape of the scapulothoracic gliding surface
verfasst von: Tomas Paquet
Robin Van Den Broecke
Stijn Casier
Jan Van Houcke
Lieven De Wilde
Alexander Van Tongel
Publikationsdatum: 15.10.2019
Verlag: Springer Paris
Erschienen in: Surgical and Radiologic Anatomy / Ausgabe 11/2019
Print ISSN: 0930-1038
Elektronische ISSN: 1279-8517
DOI: https://doi.org/10.1007/s00276-019-02342-4

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Defining the shape of the scapulothoracic gliding surface

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Purpose

Methods

Results

Conclusion

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