Walter Hoover was 70 years old when he suffered a compression fracture in his back at L4. After the first rounds of treatment were found to be unsuccessful, he was transferred to a Veterans Administration Hospital where two neurosurgeons performed a corpectomy and diskectomy at L3-5 with placement of spinal instrumentation. This procedure was done to decompress the spine.
After the surgery, Hoover experienced paralysis in his left leg. Days later, he underwent additional surgeries to remove a misplaced surgical screw, reposition his surgically implanted hardware and to decompress his spinal cord.
Even after that series of surgeries, Hoover remained paralyzed and required multiple hospitalizations and treatments until he died several years later.