The claimant is 62 years old. She completed the $10^{\text {th }}$ grade and did not obtain a GED. Nor did she have any further formal education or training. Her work history includes being a waitress in the early 1960's and a receptionist at an auto dealer and a title company. After moving to Missouri in 1980 she worked as a cook in several restaurants.
In 1990 she went to work for Consumers Market in Bolivar, Missouri. When she started she was a baker, then was promoted to bakery manager, and was bakery merchandiser when she left in 1999. While working at Consumers she had right carpal tunnel surgery and DeQuervain's release. This resulted in a loss of grip strength causing weakness in her right hand and wrist that prevented her from doing as much cake decorating and heavy lifting of pans with her right hand.
In the 1990's she injured her left thumb when putting away frozen dough. She had several surgeries to the left thumb and wrist. This involved a DeQuervain's release of the left distal forearm and arthroplasty of the left thumb metacarpal joint. After the surgery she described ongoing pain, stiffness, and weakness in her left thumb and hand. Because of the problems in both her hands she had difficulty pinching, gripping, and doing fine work for cake decorating.
Claimant also described problems which developed in both her knees starting in about 2000 when she began to experience pain. In 2002 she had arthroscopies of both knees. Her pain continued to worsen and she had continuing problems kneeling, squatting, walking up stairs, and standing for long periods of time. She ultimately had total knee replacements performed on both of her knees, the left in January 2007 and the right in May 2007. She still continued to have problems with pain and had to take medication. She also continued to have trouble squatting, kneeling, and climbing stairs prior to August 19, 2008. In June and July of 2008 she was receiving medical treatment and physical therapy for her knees. Claimant had to cut her hours from 60 to 40 after her knee replacements.
Claimant went to work for Woods Supermarket in Bolivar on September 9, 2003. She worked as a deli manager, full-time baker, and fill-in cake decorator. On August 19, 2008, a buzzer went off on a fryer and she was walking toward the fryer to turn it off. When doing so she slipped on some oil and fell. When she fell her feet went out in front of her and she attempted to reach back and catch herself. When she hit the floor the back of her head hit the floor. She had immediate pain in her left arm, her back, and her head. She was taken to Citizens Memorial Hospital by ambulance.
As a result of the accident, claimant was diagnosed with comminuted distal left radius fracture, disc herniation at L4-5 and L5-S1, and strain/sprain of her cervical and thoracic spine.
The claimant was treated by Dr. Paul Olive for her back. He performed surgery consisting of right L5-S1 laminotomy and discectomy and left L4-5 laminotomy and discectomy on January 22, 2009. After surgery she had extensive physical therapy.
When she fell on August 19, 2008, she also fractured her left wrist. Dr. Grillot performed a total of three surgeries on her left arm. On September 25, 2008, he performed an initial surgery
Issued by DIVISION OF WORKERS' COMPENSATION Carol Ballard Injury No. 08-071776
to place in a plate and bone graft. He also performed two more surgeries to remove the hardware, the last one on May 8, 2009. She also had physical therapy for the left wrist injury.
Dr. Grillot found claimant to be at maximum medical improvement and released her on May 25, 2010. His diagnosis was "left distal radial fracture, ulnar impaction syndrome, and irritation of the ulnar nerve" as a result of her work injury.
The claimant also began having neck issues. She described burning pain between her shoulder blades. She was treated with physical therapy and a TENS unit.
On February 22, 2010, Dr. Jeffrey Woodward performed an independent medical examination at the request of the employer and insurer. Dr. Woodward examined her back. He testified that his impression was "work-related fall with associated L4-5 and L5-S1 discectomy surgery with very good initial pain relief and then return of pain with no apparent intervening physical injury event. The patient was noted to have residual lumbosacral spine pain primarily on the right side of the low back associated with right thigh neuropathic pain but without any objective neurologic deficits on exam." He found her at maximum medical improvement and concluded she could work full-time modified work duties with continuous lifting, pushing and pulling zero to 15 pounds maximum. He rated her with 12% of the body as a whole permanent partial disability at the 400-week level for the work injury and 6% of the body as a whole at the 400-week level for preexisting degenerative spine abnormalities noted on the imaging reports. He said that the restrictions were caused in the same proportion as his ratings.
Dr. Woodward stated that postoperative epidural spine scarring due to the surgery claimant had could be a source of her pain. He also said that Dr. Ciccarelli noted in a July 2009 MRI possible small right L5-S1 disc protrusion that could contribute to claimant's ongoing pain.
On March 2, 2010, and January 17, 2011, Dr. Brent Koprivica performed independent medical examinations at the request of the claimant. He addressed her preexisting bilateral hands
and bilateral knee conditions. He also addressed the work-related injury of August 2008. Arising from this injury, h