The parties at hearing stipulated to the employment history of the claimant, Mr. Elbert McDaniel, prior to his employment with General Motors Corporation in March of 1985. The parties acknowledge that the claimant is a
high school graduate, and that prior to his employment at G.M. he worked a variety of jobs as a porter; a physical instructor; a van driver; and as a carpenter for McCarthy Brothers.
Mr. McDaniel relates that his duties varied from menial, such as working on locks or doors, to more involved construction of partitions and platforms. Claimant relates that his work often involved heavy lifting of construction lumber, angle iron, dry wall, scaffolding, bags of concrete weighing as much as 80 to 90 pounds, and tanks weighing as much as 60 to 80 pounds. Claimant recalls that he was constantly being called upon to patch concrete, and recalls that he would also do roof work that would require him to carry 40 to 50 pounds of tar up as many as three to four stories.
Mr. McDaniel recalls that he attended courses at Forest Park Community College from time to time; that changes to his work schedule were disruptive to his education; and that he attended as many as $11 / 2$ to 2 years of college but did not earn a degree. Mr. McDaniel recalls that for a year he attended courses in Ministry at Leal University, but did not attain a degree.
Mr. McDaniel acknowledges a history of right shoulder, bilateral knee, and prostate complaint beginning in the 1990s. Claimant recalls suffering a work injury to his right rotator cuff in 1995, with a reinjury in 1996. Claimant recalls that he did not have a surgery, and was able to continue working as a carpenter, noting that his shoulder injury resulted in a loss of strength that affected his ability to lift on occasion.
Mr. McDaniel recalls that his prostate problem did not affect him at his work, but notes that after his back injury he was obliged to go to the bathroom as many as six times a day.
Mr. McDaniel recalls suffering from excruciating knee pain after a motor vehicle accident occurring on the way to work in 1997or 1998. Mr. McDaniel mentioned the motor vehicle accident in response to a question from his counsel as to when low back complaints first began, but claimant did not provide a history of back treatment thereafter, and testified only as to knee complaints to his family physician, Dr. Butler, after that particular accident. Mr. McDaniel does not recall missing any time from work after his motor vehicle accident, and notes that he was able to continue working as a carpenter with knee pain from time to time. Claimant also recalls suffering a medial meniscus tear to his right knee that was repaired in 1969 or 1970. Mr. McDaniel relates that he had no problems with his knee after that repair, noting that he began to suffer from knee pain in varying degrees in the 1990s. Mr. McDaniel does not recall a specific incident as to his knees, noting that over the 18 years of employment with General Motors as a carpenter, he was obliged to perform tasks that required that he bend, stoop, crawl, and lift.
Mr. McDaniel recalls that on 7/8/03 he was working with another carpenter, building platforms during a plant shutdown. Claimant recalls tripping over some angle iron that had been bolted to the floor, and falling while wearing his tool pouch and with tools in hand. Mr. McDaniel recalls suffering "excruciating pain" in his low back, and acknowledges that he continued to work that day, and continued to work thereafter, without seeking medical attention, supposing that he would recover from the event. Mr. McDaniel recalls that he did not report the injury or seek treatment for about six weeks thereafter, and that he began treating at the plant dispensary while he continued to work. Claimant recalls being referred by his family physician, Dr. Butler, to Dr. Shively, who treated the claimant for knee complaints, and subsequently referred claimant to Dr. Fotopoulos for treatment as to low back complaints. Claimant relates that he continued working while under the care of Dr. Fotopoulos, and recalls attending physical therapy at Christian Hospital Northeast-Northwest. Claimant recalls that in November of 2004 his treatment was switched from Dr. Fotopoulos to Dr. LaBore. Mr. McDaniel recalls receiving injections to his low back, as many as 4 or 5 since 2003, and most recently receiving an injection in December of 2005. Mr. McDaniel reports temporary relief of his low back pain for two weeks or so.
Claimant relates that his last day of work at General Motors was on 10/04/04. Mr. McDaniel recalls that he was on sick leave at one poi