Based on the employee's testimony, the medical records and the other evidence admitted, I find as follows:
- At the time of the hearing James Hillis ("employee") was 59-years-old. The employee obtained his GED after leaving school at the end of the tenth grade. The employee had additional vocational training while employed by the City of Cape Girardeau in automotive, welding and small engines. The employee's work history included two years in the U. S. Army, operating heavy equipment at several landfills, and twenty-nine years of employment with the City of Cape Girardeau working at the landfill and in other departments in the public works area.
- On or about October 1, 2002 the employee and another co-worker were unloading a generator that weighed 75-100 pounds. The employee did not have any symptoms after lifting the generator, but three or four days later he developed pain in his right leg.
- The employee sought treatment for his leg pain from Dr. James Compton. Dr. Compton's October 4, 2002 records indicate the employee was complaining of pain behind his right knee. Dr. Compton notes that that the employee "denies any back pain, hip pain, no recent trauma or injuries" (Employee's exhibit D).
- Dr. Compton initially thought the employee might have a popliteal cyst, and ordered an ultrasound of his knee. The ultrasound was negative, and when the employee's leg pain increased, Dr. Compton ordered an MRI of the employee's low back. The MRI revealed the employee had a right postural lateral disc extrusion at the L5-S1 level that was displacing the S1 nerve root (Employee's exhibit D).
- After reviewing the MRI, Dr. Compton referred the employee to Dr. Dennis Mollman at Neurosurgery and Neurology, LLC in St. Louis. Dr. Mollman's initial record of November 13, 2002 indicates the employee was complaining of right leg pain, and Dr. Mollman stated "no specific onset of the pain is noted in terms of activities". Neither Dr. Compton's nor Dr. Mollman's records make any reference to the employee's L5-S1 herniated disc being related to the employee lifting a generator at work.
- Based on his review of the MRI, Dr. Mollman admitted the employee to St. Luke's Hospital and performed a L5-S1 microdiscectomy on November 13, 2002. The operative record indicates several large disc fragments were removed. Dr. Mollman's narrative indicates that even after he had removed all of the disc material from the disc space that could be removed, "re-inspection of the nerve root showed one more fragment which was dissected and removed with a blunt hook" (Employee's exhibit C).
- After the November 13, 2002 surgery, the employee was examined at Dr. Mollman's office on January 23, 2003 by Nurse Sherry Elze. Although the employee had significant improvement from his "pre-op status", the employee was still complaining of "intermittent low back ache as well as an occasional right lower extremity discomfort that is intermittent in nature and seems to be worse when turning or getting up from a sitting position that usually lasts thirty minutes and occurs daily" (Employee's exhibit C).
- At the time of this visit, the employee was released to return to work on Monday, January 27, 2003 on a light duty basis. The release indicated the employee should do no repetitive bending greater than ten times a day, and no lifting more than 35 pounds (Employee's exhibit C). On his second day of light duty on January 28, 2003, the employee was assigned to a job that required him to pick up trash and put it in a barrel. Although the employee was offered a stick with a nail on the end so he could avoid bending, the employee said the grass was tall and the ground was frozen, so the stick would not work. Rather than contacting his foreman, the employee decided to pick up the trash by bending over and using his hands. After performing this job for two or three hours, the employee was told by another supervisor to stop because of his restrictions. Although the employee continued working that day, the task of bending over and picking up the trash caused the employee's back to ache, and later that night the employee began experiencing back pain and pain in his right leg.
- The employee reported the increase in his symptoms to his employer, and Dr. Mollman subsequently ordered an MRI that was performed in February 10, 2003 at Southeast Missouri Hospital. The MRI showed the prior microdiscectomy at the L5-S1 level and a "small residual disc bulge just to the right of midline, but this is not sufficiently large to exert pressure upon the S1 nerve root" (February 10, 2003 MRI report, Employee's exhibit C; emphasis added).
- After reviewing this MRI, Dr. Mollman scheduled the employee for surgery on February 14, 2003. Dr. Mollman's diagnosis was "recurrent herniated nucleus pulposus, L5-S1, right." Dr. Mollman's operative record indicates he removed scar tissue from the S1 nerve root sleeve, and removed an additional fragment of disc material that