Rotary saw was effective, but suturing of incision proved ineffective. High-intensity heat cauterization proved successful.”— Sawbones
Pendelton had an appendectomy (performed by Sawbones) where a rotary saw was tested out to see how well it would work, suturing was ineffective in closing his abdomen so they used high-intensity heat to cauterize the cut. The outcome of the operation was successful.
Pendelton is mentioned only in Fallout 3.