Huston Pointer ("Claimant") was born August 6, 1958. He graduated from high school in 1976. While in high school, he was vocationally trained in building trades. Post-high school, Claimant has had no additional schooling or training other than on-the-job training. Prior to graduating high school, Claimant worked as a farm laborer. After graduating from high school, Claimant worked very briefly for the Illinois Central Gulf Railroad. In July 1976, Claimant began working for Quinn Concrete, now known as Coreslab; Claimant worked there for almost 17 years. On March 1, 1993, Claimant began working for the Marshall Municipal Utilities (sometimes hereinafter referred to as "MMU"), which is owned by the City of Marshall
(sometimes hereinafter referred to as "Employer"). Claimant worked for Employer/MMU continuously from March 1, 1993 until the May 17, 2010 accident which is the subject of this claim.
Prior to May 17, 2010, Claimant had a significant medical history. The timeline of that history is as follows:
1979 Work injury. Left knee medial meniscus tear, surgically repaired.
Sept. 1984 Work injury. Underwent L4-S1 fusion surgery in Oct. 1984. Was off work six months.
July 1985 Work injury. Slight disruption of prior fusion. No surgery.
July 1986 Work injury. Surgery performed in Jan. 1987 consisting of L5-S1 discectomy and decompression and fusion from L3 through S1 with placement of Knodt rods. Claimant returned to work in late July 1987.
2004 Sinus surgery
2006 Hernia repair
2007 Surgery - partial colectomy
Sept. 2008 Knodt rods removed
Nov. 2008 Right knee arthroscopy: partial medial meniscectomy and abrasion chondroplasty
Dec. 2008 Left total knee replacement
Aug. 2009 Work injury to both knees; no additional surgery performed
It is also noted here that Claimant has been a $11 / 2$ pack/day smoker for many years, and continues to smoke although advised to quit numerous times. Claimant denies any significant respiratory problems, although the medical records document chronic obstructive pulmonary disease secondary to cigarette smoking treated with Combivent inhaler, Flonase nasal spray and Advair Diskus inhaler.
As stipulated, Claimant sustained an accident arising out of and in the course of his employment with MMU on May 17, 2010. The accident occurred as Claimant was on a ladder, shoveling lime, with his feet about $41 / 2^{\prime}$ off the floor when the ladder "kicked out", flipping Claimant who landed on the concrete on his left shoulder and left buttock. Claimant immediately experienced pain in the left leg, low back and left shoulder.
After emergency room evaluation and treatment, Claimant was off of work for about a week. Claimant continued to work for MMU, but in continued pain. Finally an MRI was done of Claimant's left shoulder which suggested a torn labrum and biceps tear. Claimant was referred to
Dr. J. Clinton Walker, an upper extremity surgeon, for treatment of the left shoulder. Dr. Walker initially offered conservative treatment, including steroid injections. On August 20, 2010, Dr. Walker performed arthroscopic surgery consisting of subacromial decompression, debridement and mini open rotator cuff repair; he could not repair the biceps tear. Claimant was kept off work through September 1, 2010 and then returned to light duty with restrictions of no use of his left arm and to keep it in a sling. TTD was paid from August 20 - September 2, 2010 and no additional TTD was ever paid by Employer.
In a follow up exam on October 4 2010, Dr. Walker prescribed phys