Despite a strong work history, Claimant had several preexisting injuries that constitute a hindrance or obstacle to employment. Claimant was born with spina bifida and underwent surgery shortly after birth to address the defect. As a result of his congenital condition, Claimant has had problems, including back pain, periodic bladder control problems, pain, sensation disturbance, leg length discrepancy, altered gait, and balance problems. In 1998, another back surgery was recommended, but he had a heart attack and never underwent the surgery. Claimant has missed work over the years due to his congenital back condition.
In the early 1960's, a car door slammed on Claimant's left foot, and the toes on his left foot were amputated. He played sports and engaged in other high school activities, although he did limp as a result of his toe amputation. Over the years, Claimant modified his activities to account for the loss of his toes. Later in his career, Claimant had a metal plate inserted in his shoe to substitute for the missing toes so he was able to drive a truck.
In the late 1990's, Claimant had a heart attack and underwent a triple bypass surgery to address his coronary artery disease. Because of his coronary artery disease, Claimant had decreased endurance and trouble functioning in temperature extremes. Claimant returned to work after his heart attack. He was on blood pressure medication and had difficulties with unusually cold days or in hot temperatures.
In 2005, Claimant injured his right bicep when he was closing the roll down door, which he settled for 20 % permanent partial disability. As a result, Claimant is weaker and less flexible, has had to modify the way he lifts, requires more trips, and has had to ask for assistance.
In 2006, Claimant was diagnosed with avascular necrosis of the left medial femoral condyle, and underwent total knee replacement, which was subsequently revised. As a result, he was slower, he could not lift as much, and he had trouble walking.