You rarely need a cast for a simple toe fracture unless it's the big toe, and not always then.
From the suntimes.com
Even so simple a motion as walking or sitting can collapse vertebrae and fracture wrists and hips.
From the time.com
Typically, low energy injuries are treated with simple wound care, with or without antibiotics, regardless of the presence of a fracture.
From the scienceblog.com
In its most extreme form, the bones soften and almost melt, making them so fragile that the simple act of walking up steps may cause bones to fracture and slight movement may cause excruciating pain.
From the infowars.com
A simple, yet elegant, technique allows the authors to observe the very early stage of bone fracture, just after a small microcrack has formed, but before it has got out of control.