From: A retrospective study on the impact of bar flipping on the recurrence of pectus excavatum after the Nuss procedure
Before revision surgery
After revision surgery
p value
Slope angle α (IQR), degrees
39.6 (38.5–52)
10.4 (9.1–23.7)
0.018
cxrHI (IQR)
3.5 (3.1–3.8)
2.9 (2.5–3.1)
0.043