Safety Triangle
Borders of safety triangle
• Anterior border: Lateral border of pectoralis major
• Lateral border: Lateral border of latissimus dorsi
• Inferior border: 5th intercostal space
Why safety triangle is important?
• A site with minimised risk of internal organ perforation during chest tube insertion
Notes:
• For maximum exposure of safety triangle, externally rotate the ipsilateral arm with hand above the head