Figure 2.

Fracture and inspired oxygen level significantly affect tissue pO₂. When animals (n=7) were breathing 21% oxygen, the mean pO₂ was 45.5 ± 15.3 mmhg in contralateral limbs and 30.6 ± 12.7 mmhg at fracture sites. When animals were breathing 100% oxygen, the mean pO₂ was 148.4 ± 59.2 mmhg in contralateral legs and 72.8 ± 28.2 mm hg in fractured limbs. ctrl = contralateral limbs.——mean of tissue pO_2· |¯¯¯| p<0.01.