Mr. Jenkins testified on his own behalf and presented the following exhibits, all of which were admitted into evidence without objection:
| Exhibit A | - | Rating report, April 7, 2004, Dr. Koprivica |
| Exhibit B | - | Rating report, May 8, 2004, Dr. Koprivica |
| Exhibit C | - | Rating report, Dr. Stuckmeyer |
| Exhibit D | - | Medical records, Orthopedic \& Sports Medicine Clinic |
| Exhibit E | - | Medical records, Diagnostic Imaging Center |
| Exhibit F | - | Medical records, Midwest Radiology Consultants |
| Exhibit G | - | Medical records, Kansas City Bone \& Joint (2/19/01 through 3/5/01) |
| Exhibit H | - | Medical records, Kansas City Bone \& Joint (4/97 through 2/00) |
| Exhibit I | - | Medical records, Dr. Wiscombe |
| Exhibit J | - | Medical records, Morack Chiropractic Center |
| Exhibit K | - | Medical records, Open MRI of Kansas City |
| Exhibit L | - | Medical records, Research Belton Hospital |
| Exhibit M | - | Medical records, Surgicenter of Kansas City (7 pages) |
| Exhibit N | - | Medical records, Surgicenter of Kansas City (10 pages) |
| Exhibit O | - | Medical records, Cass County Physical Therapy |
| Exhibit P | - | MoKan Teamsters report of hours worked. |
Superior presented the testimony of Danny Marks and the following exhibits, which were admitted into evidence:
| Exhibit 1 | - | Deposition of Dr. Thomas |
| Exhibit 2 | Claim |
| Exhibit 3 | - | 8/16/02 letter from Mr. Jenkins to the employer |
| Exhibit 4 | - | 9/5/02 letter from the employer to Mr. Jenkins |
| Exhibit 5 | - | 1999 tax return |
| Exhibit 6 | - | 2000 tax return |
| Exhibit 7 | - | 2001 tax return |
| Exhibit 8 | - | 2002 tax return |
| Exhibit 9 | - | Vocational evaluation report, Mary Titterington |
| Exhibit 10 | - | Video, job duties |
| Exhibit 11 | - | Yearly earnings summary for 2001 |
| Exhibit 12 | - | Video of Mr. Jenkins, 9/20/02 |
| Exhibit 13 | - | Video of Mr. Jenkins, 10/19/02 |
| Exhibit 14 | - | Video of Mr. Jenkins, 8/04 |
| Exhibit 15 | - | Video of Mr. Jenkins, 12/04. |
Employee's objections as to relevance of Exhibits 5-9 and 12-15 were overruled.
Based on the above exhibits and the testimony of Mr. Jenkins and Mr. Marks, I make the following findings. Mr. Jenkins worked as a Teamster truck driver, or lowboy truck/trailer driver, for Superior from 1984 until December 1, 2001. His job duties included loading and unloading heavy construction equipment onto an 18-
wheel, tandem-axle trailer up to 20 times per day. In order to load and unload the equipment, Mr. Jenkins was required to maneuver 100-pound ramps to drive the equipment onto and off the trailer. He also had to secure the equipment in place for transport with a "boom ratchet." Loading and unloading the equipment required repeated climbing on and off the heavy equipment. It also required repeated bending at the knees, kneeling and squatting, while pushing and pulling weighted objects.
He drove the truck loaded and unloaded with equipment between Superior's headquarters in Kansas City, Jackson County, Missouri, and various job sites, primarily throughout the metropolitan area. Driving required repeated climbing in and out of the truck cab. While driving, particularly in city traffic, Mr. Jenkins was required to repeatedly shift, brake, use the clutch, and accelerate an 18-wheel truck.
Mr. Jenkins performed these job duties for Superior for more than 17 years. He generally worked between March and December due to weather. He averaged 50 hours per week and in some years averaged 60 to 70 hours per week. (Ex. P, 11).
Due to his bilateral knee complaints, Mr. Jenkins was referred to Dr. Browne, an orthopedic surgeon, in May 2002. Dr. Browne diagnosed Mr. Jenkins with degenerative joint disease of both knees. Dr. Browne recommended Synvisc injections; a series of three injections were given to each knee in June and July of 2002. Mr. Jenkins' complaints did not resolve and Dr. Browne recommended a total knee arthroplasty.
Mr. Jenkins was evaluated by Dr. Stuckmeyer, an orthopedic surgeon, on March 14, 2003, at the request of Mr. Jenkins' attorney. For his evaluation, Dr. Stuckmeyer interviewed Mr. Jenkins about his job duties, his preexisting injuries and conditions, his complaints and treatment, and his current complaints (Ex. C). Dr. Stuckmeyer reviewed Mr. Jenkins' medical records and conducted a physical examination.
Dr. Stuckmeyer noted the following job duties for Mr. Jenkins: repetitive loading and unloading heavy equipment; jump off the trailer and get in and out of the truck numerous times; and moving 100-pound ramps. Dr. Stuckmeyer determined that as a result of those job duties at Superior, "Mr. Jenkins suffered significant repetitive trauma to both the right and left knee." (Ex. C, p. 4). It was Dr. Stuckmeyer's opinion that Mr. Jenkins' job duties "increased the mechanical stresses and strains on both the right and left