Derotation osteotomies of femurs & tibias

My 10 year old son has undiagnosed genetic disease. He is scheduled for bi-lateral derotation surgeries of femur, tibia & calcaneal lengthening in both feet in July. My question is should I have both sides at once or seperate them? If he gets an infection would it spread from 1 side to the other if both sides are done? He also has Malignant Hyperthermia, osteopenia, gerd & central & obstructive sleep apnea (uses CPAP). In the past he had trouble with staph quite a few times with his g-tube surgeries but they were treated in hospital with iv antiobiotics. He also had vancomyicin (sp) resistant c-diffucille when he was younger, too many antiobiotics for recurrent infections at that time- took a year for recovery. Trying to weigh all my pros & cons to his best advantage.

[sherrieb50]

Never mind, his surgery is finished.