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SURFACE MARKING-TRANSTHORACIC PLANE

Anatomy-Thorax

SURFACE MARKING-TRANSTHORACIC PLANE

A. Suprasternal notch corresponds to T2/3 inter-space.

B. Transthoracic plane of Ludwig extends from the angle of Louis (sterno-manubrial junction) to the inferior endplate of T4. Landmark for:
1. Bifurcation of the pulmonary trunk.
2. Bifurcation of the trachea.
3. Aortic arch.
4. Azygous vein drains into the SVC.
5. Ligamentum arteriosum.
6. Cardiac plexuses.


C. A handy mnemonic to remember the structures found at the level of the thoracic plane (also known as the plane of Ludwig) is CLAPTRAP
C: cardiac plexus
L: ligamentum arteriosum
A: aortic arch (inner concavity)
P: pulmonary trunk bifurcation
T: tracheal bifurcation (carina)
R: right-to-left movement of the thoracic duct (posterior to the oesophagus)
A: azygos vein drains into SVC
P: pre-vertebral fascia and pre-tracheal fascia end


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REFERENCES

1. Mcminn. (2003). Last's Anatomy. Elsevier Australia. ISBN:0729537528. Read it at Google Books - Find it at Amazon
2. Netter, F. H. (2019). Atlas of human anatomy. Philadelphia, PA: Elsevier.
3. Image: no reference available.

Ⓒ A. Manickam 2018

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