A Cook County jury awarded $4.3 million to a man who received multiple back surgeries to reset a spinal device that should have stayed put.Jerome Kaczorowski, a 67-year-old from Homer Glen who worked in computer sales before the procedures, received the initial surgery in June 2008 to relieve pain he experienced from degenerative arthritis.The device — which features a set of curved metal support rods on either side of the spine and locking caps where screws set the base in place — was installed to immobilize a …