Blue arrow points to Jozu's attack. Look at where on Aokiji it's striking.
Blue circle shows us what's intact. Note that it's exactly where Jozu struck Aokiji as shown in the above panel.
Also note the upper body, the part where Jozu struck and was intact, is the only part to sustain injury, and it's on his left side where Jozu struck.
There's nothing to show Jozu struck Aokiji's midsection.