Table 1 Shows landmarks for axillary lines according to the CWIS method
From: Surgical stabilization of rib fractures (SSRF): the WSES and CWIS position paper
Type of anatomical landmark | Anterior axillary line (Anterior/Lateral Sector boundary) | Posterior axillary line (Lateral/Posterior Sector boundary) |
|---|---|---|
vertical lines from a fixed point | vertical line from the intersection of the posterior border of Pectoralis Major and the 2nd rib | Vertical line through the tip of the scapula |
muscle border lines | posterior border of Pectoralis Major | anterior border of Latissimus Dorsi |
angles from the mid-thoracic point | 60 degree angle | 120 degree angle |
equal-sized sectors to define the sector boundaries | 1/3rds of the circumference between the costochondral junction and the costotransverse joint | 2/3rds of the circumference between the costochondral junction and the costotransverse joint |