All evidence presented has been reviewed. Only testimony and evidence necessary to support this award will be reviewed and summarized.
- Claimant is 60 years old, a graduate of North County Technical High School, where he specialized in sheet metal training. Claimant has no post high school training. Claimant began working for Employer in 1975 performing sheet metal work. He worked for Employer for the next $31 \frac{1}{2}$ years, and left the employment during February 2007.
- In 1974 Claimant married his wife, Kathy Marie. Claimant and Kathy have remained continuously married since 1974. Since her marriage, Kathy Marie Heisler has remained dependent in whole and part upon Claimant. The couple had three children who are emancipated.
- Throughout his career with Employer, Claimant worked as a sheet metal riveter. Claimant's work was very hand intensive, and required use of vibratory tools. During 2006 (primary injury), Claimant began to experience pain and numbness in his upper extremities. By November 2006, Employer began to provide medical treatment to Claimant due to his occupational disease. Ultimately, Claimant was diagnosed with chronic bilateral cubital tunnel syndrome, and chronic right carpal tunnel syndrome. During February and March 2007, Claimant first underwent a right carpal tunnel release and a right cubital tunnel release with ulnar nerve transposition, and a month later Claimant underwent a left cubital tunnel release with ulnar nerve transposition. On June 4, 2007, Claimant reached maximum medical improvement (MMI) from these surgeries. On October 14, 2010, Claimant settled his claim with Employer for 17.5 \% PPD referable to the right wrist, 22.5 % PPD referable to the right elbow with 30.635 weeks backed out reducing 210 week level to 179.375 weeks, and 10 % PPD referable to the left elbow producing a total of 92 weeks of PPD disability. Claimant has not worked since February 2007. He experiences difficulty with gripping and twisting items; his left upper extremity is worse than his right; he is unable to fully extend his left arm; he continues to experience left arm popping and numbness; and he is unable to lift items above five pounds unless the item is held without his arms extended.
- Claimant has the following additional rated preexisting conditions that preceded his last work related injury: 1973 bilateral wrist injuries; a November 2001 left lateral epicondylitis; a history of lumbar spine disease; and a history of cervical spine disease.
1973 bilateral wrist injuries - Claimant fell from a tree while working for a tree service, and fractured both wrists. His right wrist was casted, and he underwent ORIF surgery to repair his left wrist. Following more than a year of healing, Claimant is unable to fully bend his right thumb, and he has limited range of motion in his right wrist. Claimant is unable to fully bend his left wrist, and has limited pronation and supination. He continues to experience daily pain, wore wrist supports when working, and modified his work activities to accommodate his injury. Claimant believes his settlement reflected 50\% PPD referable to the left wrist, and 25\% PPD referable to the right wrist. ${ }^{1}$
2001 left lateral epicondylitis - During November 2001, Claimant developed left elbow pain while working. Employer provided medical treatment, and during June 2002, Claimant underwent a left lateral epicondylectomy. During 2004, Claimant settled his case with Employer for 17.5 % PPD referable to his left elbow. Prior to his primary injury, Claimant experienced daily pain in his left elbow, but was able to lift and fully extend his left arm.
Lumbar spine disease - Claimant has experienced low back pain since a fall from a tree in 1971. Between 1971 and September 2000, Claimant received conservative treatment as needed for his back complaints. During September 2000, an MRI of the lumbar spine demonstrated progression of degeneration at L4-5, and a possible L5-S1herniated disc. When
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[^0]: ${ }^{1}$ Due to the age of the injury, no medical or Division records regarding the injury remain.
conservative treatment failed, Claimant underwent a L5-S1 hemilaminotomy. Post-operatively Claimant redeveloped left leg radicular pain. During 2002, Claimant slipped getting out of bed and fell landing on his buttocks. X-rays showed increasing degenerative changes with narrowing at L4-5 and L5-S1. Claimant also suffered a compression fracture at T12. Claimant began using a cane to assist in ambulation. During June 2003, Claimant underwent his second lumbar spine surgery, an L4-5 anterior-posterior fusion. Post-operatively, Claimant continued to experience radiating low back pain, and during August 2007, Claimant was formally diagnosed with failed back surgery syndrome and remained in pain management. Prior to the primary injury, Claimant and Employer were accommodating Claimant's work duties due to his low back condition. Claimant frequently had to stand and change positions, take a break to lie down in a cabinet to rest his back, lifted a maximum of 10 pounds at work, was provided a chair while working, was given a three-wheeled bike to move about the plant, and was given a special parking pass to allow close parking to the plant. Claimant experienced daily low back and leg pain. In addition to the work accommodations, Claimant missed approximately 20-30 days of work per year due to his back.
Cervical spine disease - Between 20