Bonaduce, 63, was diagnosed with hydrocephalus, a buildup of fluid in the brain that interfered with his ability to walk.
The procedure involved placing a shunt in his head to drain the fluid and hopefully alleviate the pressure around his brain and spinal cord.
“The doctors are optimistic, he responded well to the surgery, he’s got to get his rest,” Anderson told RadarOnline.com. “Time will tell but he’s got to chill out for the next three weeks so his body heals, and I will tell you the brain surgery will not impact his quick wit.”