Pamela Carol Boyer (hereafter "Employee") was 47 years old at the time of hearing. She has been employed at Red Wing Shoe (hereafter "Employer") for approximately six years as a production operator. She has several different jobs as a production operator that require her to move around to different stations during her shift. Her job duties include "splitting" (putting material through a machine to reduce it to a specific ounce), dye marking (putting material on a plate to be marked with an invisible line for the sewers), "skiving" (operating a machine that reduces leather material to a small ounce), "cementing" (putting a liner on the back of leather material), sewing (using a two needle stitching machine to sew two pieces of leather together or a computer stitch machine), "rub and turn" (using a machine to install leather on the sides of a boot, then turn the boot right side out), and "taper" (installing a thick piece of leather on the inside seam of the boot.) Employee rotates among these jobs for a maximum of two hours per job. Employee normally works 6:30 a.m. to 3:30 p.m. except on Fridays she works until 12:30 p.m.
On Friday, April 27, 2018, Employee was working in an L-shaped area where two dye marking machines were located. The plates used on the dye marker machine are made of metal and there are several different sizes with the largest being approximately $14 \times 12$ inches. When the plates are not being used in the machine, they are stored upright on a rack that is approximately six feet tall and four to five feet wide. The dye marker machine area is a tight space that can become crowded with two people in the area. Usually, only one person works in the dye marking machine area at a time. However, on April 27, 2018, Employee was training two co-workers. Employee was training co-worker \#1 in the dye marking area. The co-worker was caught up with her work in the dye marking area, therefore Employee decided to walk to the "splitting" area to help out co-worker \#2. Employee had to walk closer to the plate rack than normal because co-worker \#1 was stationed at one of the dye marking machines located across from the plate rack. This left Employee with less space to pass through the walkway because she had to pass by co-worker \#1. While en route Employee did not notice a dye plate sticking out of the plate rack approximately four inches and she struck her right shoulder directly above her armpit, but below her collar bone, on the plate. This occurred at approximately 8:00 a.m. Employee testified that her right shoulder hurt, but not badly enough to complain about it. There are no known witnesses to the accident. Employee testified that co-worker \#1 did not see it happen. Employee did not report the incident to her supervisor, despite Employer's policy that all work-related injuries be reported immediately, because she thought the pain would go away.
Employee completed her shift that day operating machines on the Pecos line which did not require much use of her upper extremities. Her supervisor, Michael "Mick" Carlyon testified that employees in his departments were sent home early at 11:00 a.m. that day because they had met their production numbers.
Employee went home after her shift. Her husband had their camper packed and ready to go camping that day. Employee and her husband are guardians for three children, ages 8, 9, and 11 and they took them camping with relatives for the weekend to Meramec State Park. Employee's husband hooked the camper to the truck. Employee did not do anything to prepare the campsite other than plug in the electric. She relaxed that weekend while the kids played at the park. Her shoulder was stiff and painful. She took Tylenol and put some ice on it. Employee and her family returned home on Sunday. Employee denied any injuries over the weekend. Employee denies having any pain, problems, or treatment regarding her right shoulder prior to April 27, 2018.
On Monday, April 30, 2018, Employee called into work that morning and told her employer her shoulder hurt and she would not be at work. She also texted her supervisor, Michael "Mick" Carlyon, that she was not coming to work, her right arm was hurting, and that she wasn't able to use it all weekend. She did not report a work accident. She went to her primary care doctor, Dr. Metcalf, at Cedar Hill Medical Center that day. Employee was evaluated for complaints of right shoulder pain that "initially started several days ago." According to the visit record "The apparent precipitating event was lifting, but the actual mechanism of injury is unknown." Employee admits she did not tell her doctor about a work accident because she did not remember hitting her shoulder on the plate and didn't think her shoulder problem was related to anything at work at the time. An x-ray of the right shoulder was normal, but because a rotator cuff tear was suspected due to Employee's limited active range of
Employee: Pamela Boyer
Injury No. 18-035982
motion, an MRI was ordered. Employee was instructed to work light duty of no lifting over 20 pounds with the arm for the next week. She presented the light duty work slip to her supervisor. Mr. Carlyon sent Employee to discuss the same with Rhonda Portell, the human resource manager. It is Employer's policy that work restrictions for non-work related injuries are not accommodated for liability reasons.
Employee underwent an MRI of the right shoulder on May 4, 2018. The MRI report reflects a history of "Chronic Rt shoulder pain w instability; No trauma; No sx." The MRI showed "Focal high grade or full thickness delaminating tear involving the anterior third of the supraspinatus tendon insertion in a background of tendinopathy" and "[a]cromioclavicular osteoarthrosis with prominent undersurface osseous hypertrophy abutting the supraspinatus myotendinous junction." Employee was surprised to learn she had a rotator cuff tear and asked her doctor how it could have happened. She was told it could have been a car accident, or fall with an outstretched hand or some kind of hit on the shoulder. She did not have a car accident or fall, but she remembered hitting her shoulder on the metal plate at work. Employee was released to resume her normal work load on May 8, 2018. On approximately May 9, 2018, she reported the accident to Mr. Carlyon and Ms. Portell and filled out some paperwork. Mr. Carlyon then investigated the work area. He examined the dye plates and pulled them out to see how far a plate could be pulled out of the plate rack before tipping over. He determined a plate could be pulled out, without falling out of the rack, approximately eight to nine inches. He determined that if a dye plate was sticking out four to five inches, someone walking in that area could strike it.
Employee was evaluated by Dr. Nathan Mall, an orthopedic surgeon, on June 13, 2018 at the direction of Employer-Insurer. After taking a history, reviewing the imaging studies and performing a physical exam, his assessment was AC joint osteoarthritis and anterior supraspinatus tear. Dr. Mall opined that a minor impact to the front of the shoulder would not produce a rotator cuff tear. He explained that rotator cuff tears are caused by falls onto an outstretched hand/elbow or from a traction event to the shoulder. He concluded, "I do not believe that the alleged work incident of striking the very front of her shoulder on 4/27/18 against a plate that was sticking out is the prevailing factor in the cause of her rotator cuff tear as this is not the type of mechanism that would produce a rotator cuff tear." He opined that "other risk factors including activities that she may be performing while camping as well as her smoking history and her severe AC joint osteoarthritis as potential risk factors for the development of a rotator cuff tear. I believe these risk factors are the prevailing factor in the cause of her rotator cuff tear." Then he states "I believe that her smoking history of one-half pack per day for 20 years is the prevailing factor in the cause of her rotator cuff tear." Dr. Mall testified that there is a high association with smoking and rotator cuff tears and he refers to a study, attached to his deposition as Exhibit E. The study cited by Dr. Mall, "Smoking Predisposes to Rotator Cuff Pathology and Shoulder Dysfunction: A Systematic Review", concludes that "[s]moking is associated with RTC tears, shoulder dysfunction, and shoulder symptoms. Smoking may also accelerate RTC degeneration and increase the prevalence of larger RTC tears."
Employee was evaluated by Dr. Bruce Schlafly, an orthopedic surgeon, on February 12, 2019. Dr. Schlafly recorded that Employee struck her right shoulder on a metal plate at work and initially did not experience severe pain in her shoulder. Dr. Schlafly further noted that while Employee was camping that weekend her shoulder bothered her and she had difficulty raising
Employee: Pamela Boyer
Injury No. 18-035982
her right arm. After taking a history from Employee, reviewing her medical records, and performing a physical exam, Dr. Schlafly diagnosed Employee as having a torn rotator cuff of the right shoulder that had been present for ten months. He further noted she appeared to be developing adhesive capsulitis. He opined that the work injury of April 27, 2018 is the prevailing factor in causing her right shoulder rotator cuff tear and that her overhead work duties prior to the accident probably contributed to some underlying rotator cuff tendonitis seen on the MRI scan. He acknowledged that "[a] direct blow to the shoulder is a less common cause of a torn rotator cuff than other causes such as a fall on the arm or repetitive shoulder motion, particularly repetitive overhead shoulder motion, but a direct blow to the shoulder can cause a rotator cuff tear." Dr. Schlafly recommended that Employee be referred to an orthopedic shoulder specialist for a rotator cuff repair.
After reviewing additional records, including an Independent Medical Evaluation ("IME") performed by Dr. Schlafly, Dr. Mall issued an addendum report dated July 30, 2019 wherein he affirmed that his causation opinions remained the same. He observed that it is not uncommon that individuals won't remember a specific injury or event that produced their shoulder pain from a rotator cuff tear. He noted that rotator cuff tears are a common condition seen in the general population. Dr. Mall acknowledged that rotator cuff tears can occur from a direct blow trauma, but that "this is substantial trauma that essentially produces a shoulder dislocation and tears the rotator cuff. This is not the type of injury mechanism that Ms. Boyer describes." He further noted that because she was able to continue working after the event and her primary care doctor did not note any substantial bruising, this is indicative of a minor trauma. Dr. Mall testified by deposition, "Your shoulder blade is part of your socket. So you have to pull that ball far enough away from the socket to actually cause a rip of those tendons. And to do that you have to have a dislocation." He cited a study he participated in during his fellowship, attached to his deposition as Exhibit D, wherein he observed that traumatic rotator cuff tears are typically larger and those mechanisms of injury reported were not direct blows to the shoulder. The study did not set forth any conclusions about whether a shoulder dislocation is required for a direct blow to cause a rotator cuff tear. Dr. Mall also testified that an acute tear would be expected to cause inflammation, pain and soreness that would cause the individual to seek treatment the same day or within a couple of days. He testified that an acute tear would cause a person to have significant difficulty lifting their arm overhead and prevent them from doing normal activities.
Dr. Mall testified that if Employee were to pursue treatment under private health insurance, treatment would include an injection and physical therapy.
Dr. Schlafly issued an addendum report dated September 3, 2019. He noted that Employee had no history of right shoulder complaints before April 27, 2018 and that when seen by the doctor on April 30, 2018, the physician suspected rotator cuff pathology. He thought it unlikely that this was merely coincidence. He further noted that "a simple Google search produces numerous orthopedic websites from many American states and other countries which
1 The study, An Evidenced-Based Examination of the Epidemiology and Outcomes of Traumatic Rotator Cuff Tears, concluded that "[traumatic rotator cuff tears are more likely to occur in relatively young (age 54.7), largely male patients who suffer a fall or trauma to an abducted, externally rotated arm. These tears are typically large and involve the subscapular, and repair results in acceptable results."
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