The claimant, Violet Lawrence, was employed by Modine Manufacturing (Modine) on March 27, 2008, when she injured her low back while trying to maneuver a 200 pound cart full of tubes. Ms. Lawrence had radicular pain into her right leg shortly after the accident and injury. Ms. Lawrence reported her injury and received medical attention from Dr. Jordan, who determined that she was suffering from arthritis and did not have a work-related injury. Ms. Lawrence delivered a "work related injury follow-up questionnaire" on which Dr. Jordan had written that Ms. Lawrence was to seek follow up care with her regular doctor to the human resources department at Modine. Modine offered her no additional medical treatment for her back. Ms. Lawrence then sought medical care from her own doctor resulting in a referral to Dr. Rodgers who ultimately performed three back surgeries on Ms. Lawrence. Ms. Lawrence missed work from June 30, 2008 through November 3, 2008 for the initial two surgeries and from June 17, 2009 through October 12, 2009 for the last surgery. Ms. Lawrence identified medical bills in the amount of $\ 113,750.98 as the result of her treatment for her back, including the three surgeries.
Currently, Ms. Lawrence has returned to full duty work but limits her lifting to less than 30 pounds, lifting primarily five to six pound weights. Ms. Lawrence has increased back pain after a stressful day at work and has radiating pain into her right leg approximately three days a week. Ms. Lawrence takes vicodin for pain once or twice a day and also takes ibuprofen for pain.
Ms. Lawrence testified to weakness in her right wrist as the result of a fractured wrist from a car accident in 2004. Ms. Lawrence also testified to difficulties with grip as the result of a smashed left index finger prior to March 27, 2008.
Prior to the March 27, 2008 accident Ms. Lawrence had low back complaints with occasional radiation of pain into the right leg dating back to 1998. Ms. Lawrence described specific instances in which her back flared up in 1998, 2004 and 2006, as well as a regular aching in her back since 1998. Ms. Lawrence would take prescription medication for her back when her back bothered her and would also miss time from work due to back pain.
Ms. Lawrence testified that she did not request additional medical treatment from Modine for her back after she was told by Dr. Jordan to seek medical treatment on her own.
Dan George, the plant human resources officer for the Modine plant in Camdenton where Ms. Lawrence is employed, testified that Dr. Jordan called him after examining Ms. Lawrence and that Modine never offered Ms. Lawrence another medical opinion regarding her back complaints after March 27, 2008.
Dr. David Volarich, D.O., specializing in nuclear medicine, occupational medicine and as an independent medical examiner, testified by deposition that he evaluated Ms. Lawrence on March 4, 2010. Dr. Volarich diagnosed Ms. Lawrence with "lumbar right leg radicular syndrome secondary to aggravation of a disc herniation at L5-S1 to the right, status- post hemilaminectomy, foraminotomy, and fusion with instrumentation. Next was failed fusion with intravertebral graft failure, status-post hemilaminectomy and removal of graft material. Next was persistent lumbar right leg radicular syndrome with recurrent disc herniation at L5-S1, status-post revision fusion, L5-S1. And last was post-laminectomy syndrome."
Dr. Volarich described preexisting medical problems as "right wrist distal radius fracture, status-post closed reduction, healed with malunion. Next was left ring fingertip crush injury and open fracture, status-post conservative care. ...I didn't list it, but we have to talk about the preexisting back difficulties. She had the disc herniation at L5-S1 on the right and a protrusion at L4-5 on the left as well."
Dr. Volarich opined that although Ms. Lawrence had a preexisting disc herniation at L5-S1, the March 27, 2008 accident "substantially and irreversibly aggravated to the point that surgical repairs were needed to try to correct her lumbar right leg syndrome." Dr. Volarich found that it was the radicular pain into the right leg that occurred after the March 27, 2008 accident that caused the need for Ms. Lawrence's surgeries. Dr. Volarich went on to say that if it was not the March 27, 2008 accident that caused the need for Ms. Lawrence's back surgery then "it would have to be all of the work that she did leading up to that time."
Dr. Volarich found Ms. Lawrence to have a permanent disability of 50 percent of the body due to injuries received to her low back while working at Modine. Prior to March 27, 2008, according to Dr. Volarich, Ms. Lawrence had a permanent disability of 25 percent of the body attributable to the low back due to the right-sided disc herniation at L5-S1 and left-sided protrusion at L4-5." Also prior to March 27, 2008, Dr. Volarich found Ms. Lawrence to have a 20 percent disability to the right hand and a five percent disability to the left hand. Dr. Volarich found Ms. Lawrence's disabilities to combine to be greater than their simple sum. Dr. Volarich also found Ms. Lawrence to be in need of additional medical treatment. Specifically, Dr. Volarich recommended pain management and ongoing treatments at a pain clinic, including epidural steroids and nerve blocks. Dr. Volarich also mentioned treatment such as additional myelogram C.T. views of the low back should Ms. Lawrence's right leg symptoms worsen.
During cross-examination Dr. Volarich admitted that his review of MRI reports dating back to 1998 and 2006 reflected a right-sided disc herniation at L5-S1 and a left sided bulge at L4-5 and that the MRI report dated June 4, 2008 was interpreted as unchanged from the two prior reports. Dr. Volarich also acknowledged that Ms. Lawrence had complaints of right lower extremity pain dating back to 1998 and 2006.
Dr. Fred McQueary, M.D., specializing in hip and knee injuries and low back problems, testified by deposition that he evaluated Ms. Lawrence on January 25, 2011. Dr. McQueary stated that Ms. Lawrence's MRI films from August of 2006 and from June of 2008 "both demonstrated the small right paracentral disc protrusion at L5-S1 that resulted in some mild right neural foraminal and mild right lateral recess stenosis" and that there were no objective changes between the two films. Dr. McQueary testified that he did not believe that the March 27, 2008 accident and injury alone would have produced Ms. Lawrence's symptoms in the absence of her preexisting history of back problems. Additionally, Dr. McQueary testified that neither the preexisting history alone nor the March 27, 2008 accident alone would have caused him to perform back surgery on Ms. Lawrence and that it was both the preexisting back condition and the March 27, 2008 accident equally which caused Ms. Lawrence to have additional medical treatment. Dr. McQueary testified to a 15 percent permanent disability of the body on Ms. Lawrence's part, 10 percent attributable to her back complaints prior to March 27, 2008, and 5 percent attributable to the surgeries following the March 27, 2008 accident and injury. Dr. McQueary opined that Ms. Lawrence might need anti-inflammatory medications in the future.
During cross-examination, however, Dr. McQueary testified that Ms. Lawrence did experience a structural change in her back on March 27, 2008, "most likely an annular tear in the disc" that caused Ms. Lawrence to have the pain which led to the surgeries ultimately performed on her.