Charles Bock was employed as a heavy truck mechanic at Broadway Ford from August 16, 1996, through May 5, 1998. (P.T.38). ${ }^{[4]}$ His job duties included the removal, repair, replacement and reinstallation of various parts on large tractor trucks, including work on the brakes, clutch, transmission, and springs of trucks. Many of the parts were extremely heavy. (P.T.38-39).
The employee had an extensive history of low back pain and medical treatment for the low back pain before the April 23, 1998, work related accident. These problems began in 1972, and continued intermittently through April 1998. (P.T.102). In 1972, the employee began seeing Dr. Gerald Bemis, a chiropractor, for back pain from an accident in which employee was rear ended by a tractor-trailer. (P.T.45, 102-103). During the 1970s, employee had periodic back pain or stiffness. On those occasions, he treated with Dr. Bemis. (P.T. 45). After having another motor vehicle accident in 1979, the employee treated with Dr. Bemis thirty-six times from June 22, 1979, through December 28, 1979. (P.T. 104).
In the early 1980's, the employee continued treating with Dr. Bemis for his back complaints. For example, in 1982, Dr. Bemis treated the employee for acute lumbosacral strain. The employee saw Dr. Bemis twelve times in 1983 and ten times in 1984. (P.T.104, 211). The employee also received treatment from Dr. Bemis in 1985 for low back pain, seeing the doctor twelve times into February 1986. (P.T.105). When the employee saw Dr. Bemis in June 1987, he reported that he was having pain in his back, both legs, and right arm. (P.T. 105).
From April 1988 to March 1990, the employee had back pain. Charles Bock received treatment from Dr. Bemis in 1988 for his neck and low back pain. In January 1989, the employee told Dr. Bemis that he had intermittent back pain, as well as pain into his legs. (P.T.98, 105-106). Again, in 1990, the employee reported neck pain and back pain that radiated into his legs. (P.T. 108).
In December 1991, the employee reported low back and neck pain on and off for the last few months. Dr. Bemis diagnosed a lumbar strain and probable L4-L5 disc bulge. (P.T.108, 194-196,199). X-rays revealed cervical and lumbar subluxation, complicated by cervical and lumbar disc disease and arthritis. (P.T.200). Throughout December 1991, the employee continued to experience back pain. (P.T.202). In December 1993, the employee again treated with Dr. Bemis and reported low back and neck pain. (P.T.108, 204-205).
In January 1997, the employee returned to Dr. Bemis with increased low back pain. (P.T.111-112). In July 1997, the employee complained of neck pain and low back pain, which he reported to be a recurrence of an old condition. (P.T.206, 208-209). Dr. Bemis took x-rays revealing degenerative disc disease and arthritis in the neck and low back. (P.T.113, 208). The employee continued treating intermittently with Dr. Bemis through 1997. Over the course of Dr. Bemis' treatment, Charles Bock received medical care for his neck, both upper extremities, his back, and pain in both legs. (P.T. 198-208).
In addition to treating with Dr. Bemis, Charles Bock treated with Dr. Green, his family physician, for diabetes, high blood pressure, and depression from July 25, 1983 through 1999. (P.T.46, 108-109,219-321). On August 20, 1988, Dr. Green noted a six to twelve month history of joint stiffness and diagnosed probable degenerative arthritis. (P.T.245). The employee was diagnosed with diabetes in 1988, when he went to Yellow Freight to take a medical exam for a mechanic's job. (P.T.46, 109). On November 3, 1888, Dr. Green diagnosed non-insulin diabetes mellitus and prescribed a diabetic diet and medication. (P.T.46, 109, 110-111, 245). During 1989, Dr. Green continued to monitor the employee's diabetes. (P.T.244-245). In 1990, the employee reported
numbness in both legs, and decreased reflexes. (P.T.110, 244-245). As of April 1990, the employee was not following his diabetic diet. On April 16, 1990, the employee complained of cold feet and lower extremities. Dr. Green opined that employee had some mild peripheral neuropathy, probably related to impaired glucose intolerance. (P.T. 242).
When the employee had an increase in his low back pain in January 1997, he reported it to Dr. Green. On January 7, 1997, the employee told Dr. Green that he had ongoing problems with low back pain and paresthesia or numbness in his right leg radiating from his right hip to his foot. (P.T.49, 111-112, 231). After a physical examination, Dr. Green diagnosed diabetes, intermittent right leg paresthesia-probable right leg radiculopathyclinically inactive, and history of chronic low back-clinically inactive. (P.T.49, 112, 238).
In January and February 1997, the employee's blood sugar was elevated. On February 28, 1997, Dr. Green noted that the employee's blood sugar was "unacceptably high". Dr. Green changed the employee's medication and considered use of insulin. (P.T. 235-237). On April 21, 1997, Dr. Green found that the employee's diabetes was "not well controlled". (P.T. 233).
On September 16, 1997, the employee told Dr. Green that he had pain in his legs, a sensation of weakness and pain, radiating down the medial aspect of the legs, more so in the right leg, and sometimes in the right foot. While the employee did not have any difficulty walking, he experienced difficulty climbing stairs. When he bent over, the employee felt stiff and had low back discomfort. Dr. Green diagnosed leg pain, diabetes, and proximal myopathy. (P.T.232). Throughout 1997, and into 1998, the employee's blood sugar remained substantially elevated. (P.T.268, 282, 297, 298, 305, 310, 316-317, 319). Upon examining the employee on March 20, 1998, Dr. Green found that his diabetes was not well controlled. (P.T. 226).
On March 2, 1998, the employee reported that he had been taking 6 to 8 Aleve a day for pain in the left buttock, radiating into his left leg, which he had had for one month and had experienced low back pain on and off, for some time. (P.T.117, 223). While the employee had recently treated with his chiropractor, his symptoms had not improved. Dr. Green diagnosed left lumbar radiculopathy and diabetes. He recommended a CT scan of employee's lumbosacral spine and referred the employee to Dr. Bruce Reid. (P.T. 223-224, 50, 117).
Dr. Reid examined the employee on April 6, 1998, who reported a history of chronic back problems that had worsened in the last two to three months. (P.T. 117-118, 329). The employee's pain was in the lower part of his back, and radiated down the left leg into his thigh. These problems had started to become radicular down the right leg, where they remained. (P.T. 118, 329).
Dr. Reid diagnosed lumbar degeneration with mechanical low back pain and mild left lumbar referred pain. After reviewing films taken at Dr. Bemis' office, Dr. Reid concluded that the employee had moderate lumbar degeneration at the mid and upper lumbar levels, with mild degenerative listhesis. Dr. Reid prescribed antiinflammatory medications and recommended that employee modify his activities to avoid provocative bending, stooping, and heavy lifting. (P.T.328-329). On April 22, 1998, an MRI demonstrated degenerative changes and bulging at multiple levels, especially at L4-L5, associated with mild multi-level facet arthritis, with severe degeneration of the disc at L1-L2; and increased signal intensity at T12-L1. (P.T.52, 119, 331-332). Based upon the results of the April 22, 1998, MRI, Dr. Reid ordered a CT biopsy of the employee's lumbar spine. (P.T. 120).
August 1998 Work-Related Accident
On April 23, 1998, the employee was walking across employer's garage area when he slipped and fell on spilled anti-freeze. When the employee slipped, he did not fall, hit, or twist his back. (P.T. 50-51, 120-122). Rather, the employee fell forward, landing on his hands and knees. To get out of the anti-freeze, employee rolled over on his buttocks. To stand up, employee rolled over again, back onto his hands and knees. (P.T. 50-51, 121). After getting up, the employee finished performing his work. He worked overtime. (P.T.51, 123). Upon falling, the employee did not have any pain in his legs, just a pulling sensation in his back that did not bother employee enough to pay attention to it. (P.T.51, 120-121,123).
On the day he fell, employee did not seek or receive medical treatment. The next day, the employee performed his regular work duties. He did not seek medical treatment. (P.T.123-124).
From April 23, 1998, to April 27, 1998, the employee worked full-time, performing his regular duties. He also worked overtime. (P.T .124). On April 27, 1998, the employee underwent the CT biopsy of his lumbar spine, previously scheduled by Dr. Reid. (P.T. 120, 124). While at the hospital, the employee did not provide anyone with a history of his injury at work on April 23, 1998. (P.T.125, 360-361). During the biopsy procedure, material was removed from the employee's back with a needle. (P.T. 52, 125). The CT biopsy revealed a degeneration at the T12-L1 level. Following the biopsy, the employee returned to work, and resumed his regular, full-time duties. (P.T. 126, 361).
The day after the biopsy, the employee called Dr. Reid, with leg and in back pain, but did not report an injury at work. (P.T. 53, 125, 172, 192, 328).
On April 30, 1998, the employee followed up with Dr. Reid. (P.T.126). Charles Bock's back pain was getting worse. It had shifted to employee's right side, with his right leg and thigh aggravating him. (P.T.327). The employee did not provide Dr. Reid with any history of having sustained a work accident on April 23, 1998. Dr. Reid diagnosed persistent low back pain, with right leg sciatica and right upper referred flank pain. (P.T.127, 327328). During the April 30, 1998, examination, Dr. Reid opined that the employee's pain resulted from degenerative changes in the back. Dr. Reid advised the employee that he did not have a disc herniation, and that he was not a surgical candidate. (P.T.127, 327-328).
As the employee admitted, as of April 30, 1998, he had not informed any doctor, or the employer, that he had sustained a work related accident. Moreover, the employee had not requested authorization from the employer for medical treatment, advised the employer that he was receiving medical treatment from Dr. Reid, or asked employer to send him to that physician. (P.T. 127-128).
Dr. Reid referred the employee to Dr. Platt for epidural steroid injections. (P.T.53). The employee provided Dr. Platt with a history of his back complaints. Specifically, employee reported that about four months before, he gradually began having low back pain that radiated down into the interior and posterior surfaces of his thigh particularly on the right leg. On occasion, employee's right leg became numb. The employee stated that he could hardly walk because of the pain. (P.T.408). However, employee did not inform Dr. Platt of any work accident or injury occurring on April 23, 1998. (P.T. 128, 411). The employee was specifically asked if he had a back injury. He responded "no" to this inquiry. (P.T.129). On May 4, 1998, Dr. Platt performed an epidural block at L4-L5, which did not provide employee with relief. (P.T. 53, 127, 401, 409). Dr. Platt took employee off work on May 5, 1998. (P.T. 129).
Dr. Reid referred the employee to Dr. Laws for EMG and nerve conduction tests. (P.T. 53, 980). When Dr. Laws examined the employee on May 7, 1998, he did not tell Dr. Laws that he slipped and fell at work. The employee advised Dr. Laws that his group health insurance would be responsible for paying the doctor's charges. (P.T. 130, 402, 980). During the 5/7/98 examination, Dr. Laws performed EMG studies of employee's lower extremities. These studies were consistent with a right L5 radiculopathy. (Tr. 480).
The employee also saw Dr. Reid on May 7, 1998. Once again, employee failed to provide Dr. Reid with a history of his work accident. (P.T. 130, 326). He informed Dr. Reid that the steroid injection Dr. Platt performed did not alleviate his back complaints. (P.T. 130, 321). Additionally, the employee reported that he had pain going down the right leg, and that it was radiating into his right foot. Dr. Reid observed that the employee's EMG studies were consistent with a right L5 radiculopathy. The MRI of the employee's lumbar spine showed no evidence of
canal encroachment from degenerative discs and multiple levels of mild disc bulging, but no thecal impaction or foraminal stenosis. (P.T.326). Based upon these studies and his examination, Dr. Reid diagnosed a right L5 radiculopathy, with low back pain. He did not see any surgical lesion. In Dr. Reid's opinion, the employee should continue anti-inflammatory medications and remain off of work. (P.T. 325).
Dr. Reid referred the employee to HealthSouth Physical Therapy, but the employee did not ask his employer to authorize his treatment at HealthSouth, or inform the employer that he was receiving physical therapy there. (P.T. 58, 131, 325).
On May 8, 1998, the employee went to HealthSouth and gave a history of slipping and falling on his knees two weeks ago while at work, stating that his symptoms had been worse since then. However, the employee also provided a history that his current round of symptoms started during Christmas 1997, with a gradual onset, and that they continued to get worse. Employee reported that he had a long history of back problems, since 1972, and had received chiropractic care in the past. Following May 8, 1998, the employee underwent a course of physical therapy. However, physical therapy did not improve the employee's back complaints. (P.T.58, 334-342).
Upon referral from a friend, the employee received treatment at the Galbreath Chiropractic Center. Charles Bock did not ask employer to authorize his treatment with Dr. Galbreath. Nor did he inform the employer that he was treating with the chiropractor. (P.T.132, 134, 454).
On May 13, 1998, the employee reported to Dr. Galbreath that he had a pinched nerve in his low back at the L5 level, with a gradual onset over the last three months and that he slipped on anti-freeze at work and injured his low back. (P.T.454). Dr. Galbreath diagnosed a lumbosacral spine sprain/strain injury. From May 15, 1998, through June 6, 1998, Dr. Galbreath treated the employee with spinal adjustments. (P.T.134, 457, 459-464).
On May 14, 1998, employee returned to Dr. Platt for a second epidural injection at the L5-S1 level. (P.T.277, 377-378, 421-422). On May 28, 1998, the employee followed up with Dr. Reid. During this visit, the employee gave no history of his April 23, 1998, work injury. After examining the employee, Dr. Reid diagnosed persistent right leg radiculopathy, with right L5 muscle weakness and sensory loss. He recommended that employee see Dr. Gornet for a surgical evaluation. (P.T. 325).
Instead of seeing Dr. Gornet, Charles Bock consulted with Dr. Mendelssohn, a neurosurgeon. (P.T.468). Employee did not request that employer authorize his treatment with Dr. Mendelssohn, or inform the employer that he was seeing that physician. No one from workers' compensation authorized the employee to treat with Dr. Mendelssohn. (P.T. 58, 135, 468).
When Dr. Mendelssohn examined the employee on June 10, 1998, the employee gave Dr. Mendelssohn a history of the work accident, but failed to provide any history of his prior back condition. (P.T. 58, 135, 468). The employee complained of pain in his right buttock, which radiated down his right thigh, and into his right knee and foot. (P.T. 59, 468). Dr. Mendelssohn found degenerative changes and bulging, but did not see a focal disc herniation. Concluding that the employee's symptoms were related to his right hip, Dr. Mendelssohn recommended a bone scan. (P.T. 58, 468-469). The bone scan revealed increased activity at the L1-L2 level, corresponding to an area of degenerative disc space seen on employee's April 27, 1998 CT scan and his April 22, 1998 MRI. (P.T.388). Dr. Mendelssohn did not recommend surgery and had no further recommendations for treatment. (P.T.467, 136).
On June 17, 1998, employee consulted with Dr. Taylor. The employee did not ask employer to authorize his treatment with Dr. Taylor or inform his employer that he was seeing that physician. (P.T. 59, 136, 474-475). While employee provided Dr. Taylor with a history of slipping on anti-freeze on June 23, 1998, he failed to provide any history of his diabetes or prior back problems. (P.T.136, 475). Dr. Taylor's impression was back pain and right radicular pain. He referred employee to Dr. Vest, an orthopedic surgeon. (P.T. 59, 136, 474). The employee did not request authorization from the employer to treat with Dr. Vest. Nor did the employee inform the employer that he was treating with Dr. Vest for his back complaints. (P.T. 136-137).
On June 23, 1998, Dr. Vest examined the employee. At that time, the employee related his April 23, 1998, work accident. Charles Bock reported that, prior to the fall, he had no problems with his back or right leg, but that following the fall, he had severe difficulty. (P.T.137, 494). Because of this incomplete medical history, Dr. Vest had no knowledge that the employee had previously experienced complaints in his back or legs. (P.T.138). Upon reviewing the April 22, 1998, MRI, Dr. Vest noted multi-level degenerative disc disease of the lumbar spine, most marked at L1-L2. Unlike the other physicians who previously examined the MRI, Dr. Vest concluded that there was a right forminal disc herniation at L3-L4. (P.T.494-495). Dr. Vest diagnosed lumbar pain, with right sciatica; a right forminal disc herniation at L3-L4; and degenerative disc disease of the lumbar spine. He recommended a repeat MRI. (P.T.60, 495).
On June 24, 1998, employee underwent an MRI at St. Anthony's. The radiologist interpreted the MRI as showing multi-level degenerative changes of the lumbar spine, with narrowing of the inferior portion of the right L3L4 neural foramen, and a small central posterior herniation at L4-L5. (P.T.605-606). Dr. Vest asked the radiologist to review the report concerning the bulging at the L3-L4 level. The radiologist noted that the bulging "is prominently asymmetric and focal herniation and its inferior portion cannot be excluded". However, the radiologist opined that the clinical significance of this finding was not clear, since the fat plane around the right nerve root was preserved. (P.T.605-606). On June 23, 1998, additional lumbar films confirmed degenerative changes at the L1L2, L3-L4, and L4-L5 levels. (P.T.607).
Dr. Vest concluded that the employee had a disc herniation at L3-L4 and that employee was a candidate for a lumbar microdiscectomy at that level, on the right. (P.T.496-497). Before recommending surgery and scheduling employee for surgery on July 16, 1998, Dr. Vest did not perform a myleogram. While Dr. Vest's records referenced employee's diabetic condition, they contained no mention of employee's history of peripheral neuropathy. (P.T. 60, 494-504).
On July 13, 1998, the employee complained to Dr. Vest of low back pain and severe right hip pain, which radiated into his right thigh and leg. (P.T.498). Three days later, on July 16, 1998, Dr. Vest performed a microscopic lumbar discectomy at L3-L4, on the right. In his operative note, Dr. Vest reported a "large right foraminal disc herniation compressing the right L3 nerve root". (P.T. 61, 140, 657-658).
While the employee's complaints improved for a short period following Dr. Vest's surgery, his symptoms then intensified. The employee developed numbness, pain, and a cold feeling in his right leg from his foot to his hip. (P.T.140-141). Also, the employee had pain across his hip and buttock, to the lower part of his back. While the employee had these symptoms prior to surgery, they increased after the operation. (P.T. 62-63).
Approximately two weeks after surgery, employee began to notice weakness in his right leg. Because of these problems, employee was unable to straighten his right leg at the knee. (P.T. 63, 65).
On July 22, 1998, employee reported to Dr. Vest that he had pain in both legs and a cold sensation in his right leg. Likewise, on August 8, 1998, and August 18, 1998, employee related pain in his right hip and thigh, radiating down the leg, along with numbness and a cold feeling in the leg. (P.T.499-501). On September 1, 1998, employee returned to Dr. Vest, complaining of increased low back pain, radiating to both legs, with numbness of both thighs. Dr. Vest ordered an MRI and EMG of employee's lower extremities. (P.T.502).
On September 2, 1998, employee underwent an MRI. (P.T. 63, 503). It demonstrated a bony spur projecting on the right L1-L2 foramen, small disc herniations on the left at L3-L4 and L4-L5, and an enhancing lesion in the inferior aspect of the L1 vertebral body, not significantly changed since June 24, 1998. (P.T.632633). EMG testing performed by Dr. Schreiber revealed abnormalities, including a high right lumbar radiculopathy involving the quadriceps, along with bilateral L5-S1 radiculopathy. In Dr. Schreiber's opinion, the quadriceps and L5 damage on the right appeared to have not only significant findings, but also ongoing persistent damage. (P.T. 633, 722).
After reviewing the September 2, 1998, MRI, Dr. Vest found that although there were numerous degenerative changes and multiple bulging discs, there did not appear to be any significant nerve compression at L4-L5 or L5-S1 that would correlate with the EMG report indicating bilateral L5-S1 radiculopathies. Dr. Vest
recommended that employee undergo a lumbar myelogram, followed by a CT scan. (P.T.503-504).
On September 14, 1998, employee followed up with Dr. Vest. The employee reported pain in his right thigh, radiating down the right leg into the right foot, and pain in the left leg. He complained of weakness in both legs, worse on the right, and difficulty in walking. (P.T. 141, 504).
When Dr. Green examined the employee on September 15, 1998, he reported that he slipped on some antifreeze at work back in April or May, and was starting to have progressive low back discomfort and radicular pain. Charles Bock related that he had experienced progressive pain and weakness in his right leg, since Dr. Vest's surgery. Dr. Green concluded that employee either had a diabetic polyradiculopathy or continued difficulty with a mechanical disc problem. (P.T.222).
On September 21, 1998, the employee underwent a lumbar myleogram. (P.T. 64, 139, 141). Upon reviewing the myleogram and CT scan, Dr. Vest concluded there was no evidence of disc herniation or significant nerve root compression at L4-L5 or L5-S1. Dr. Vest opined that the myleogram findings did not explain employee's leg pain. (P.T.507). When employee returned to Dr. Vest on September 22, 1998, he complained of severe back pain and pain in both lower extremities, the right worse than the left. Additionally, the employee had weakness and intermittent tingling in both legs. During the week of September 22, 1998, Dr. Vest received a telephone call from Dr. Green, who informed Dr. Vest that the employee's blood sugars had been elevated and that the employee was a diabetic. Dr. Green advised Dr. Vest that there was a concern for peripheral neuropathy. (P.T.507).
Dr. Green examined the employee on September 25, 1998. The employee continued to complain of right leg pain and weakness. Upon reviewing the employee's myleogram, Dr. Green concluded that it showed no mechanical or structural abnormality that could be surgically treated. The employee's blood sugar was elevated. Dr. Green's diagnosis was diabetes, not well controlled, and a possible diabetic polyradiculopathy. (P.T.221).
Upon Dr. Green's referral, the employee saw Dr. Laws on October 15, 1998. Dr. Laws concluded that employee appeared to have weakness at more than one level and suspected that employee had a polyradiculopathy, secondary to his diabetes, or a mononeuritis multiplex. (P.T.64, 142, 485-487). The employee returned to Dr. Laws on October 28, 1998. Upon reviewing the employee's test results, Dr. Laws opined that it was most likely that the employee had a polyradiculopathy secondary to his diabetes, or a femoral neuropathy. (P.T.484).
When Dr. Vest examined the employee on November 10, 1998, he complained of pain and numbness in his right hip and thigh. (P.T.513). Dr. Vest's diagnoses were: 1) right lumbar radiculopathy involving the quadriceps, and bilateral L5-S1 radiculopathies: 2) status post lumbar microdiscectomy at L3-L4 on the right; diabetes mellitus, with presumed peripheral neuropathy; and degenerative disc disease of the lumbar spine, with central spurring at L1-L2. (P.T.513). Since his treatment had not improved the employee's complaints, Dr. Vest referred employee to Dr. Lenke. No one from the employer or its insurer authorized the employee to treat with Dr. Lenke. (P.T.64, 510-513). After examining the employee, Dr. Lenke opined that he had a disc herniation at L4-L5, causing a right L4 radiculopathy. On November 18, 1998, Dr. Lenke performed a nerve root block. (P.T.617-621, 623-624).
On November 24, 1998, employee reported to Dr. Vest that the nerve root block Dr. Lenke performed alleviated his pain for twelve hours, but the pain returned. Additionally, employee had pain in the right shoulder, and pain with elevating his right arm above his head. These complaints started after Dr. Vest's surgery. (P.T.515).
On December 1, 1998, Dr. Gold, a neurosurgeon, evaluated the employee. He noted that post-operatively, the employee's symptoms were getting worse. The employee complained of back pain, and pain in his right shoulder and arm, radiating into his elbow. Since Dr. Vest's surgery, employee was unable to raise his right leg and could barely walk on that leg. (P.T.143, 642-643). Dr. Gold recommended repeat EMG and nerve conduction studies. These studies, performed on December 2, 1998, demonstrated right femoral neuropathy and moderately
severe peripheral neuropathy. Based upon these test results, Dr. Gold referred the employee to Dr. Sherrill, a neurosurgeon. (P.T.66, 144, 626, 639-640, 643).
On January 20, 1999, Dr. Sherrill examined employee and reviewed his diagnostic studies. The employee informed Dr. Sherrill that his symptoms had gotten worse after Dr. Vest's surgery and that he had lost the use of his right thigh. (P.T. 144, 626). Also, employee reported that he was a diabetic and had been on oral hypoglycemics for seven years. (P.T. 627, 635).
Dr. Sherrill's initial impression as to the employee who was a diabetic, who had back pain since a minor fall, who had femoral neuropathy that was now fairly impressive involving the sensory dermatomes of L2, L3, L4, and parts of L5, with weakness in the quadriceps muscles that had gotten progressively worse since Dr. Vest's reduction of the disc bulge, was that of diabetic peripheral nerve disease. Dr. Sherrill opined that the employee had a right femoral nerve injury that was quite extensive, and an L5 radiculopathy, with ongoing injury. (P.T.627628, 735-736). Dr. Sherrill informed the employee that his problems were related to his diabetes, and that he had a diabetic peripheral neuropathy. Moreover, he advised Charles Bock that he did not need further surgery. Dr. Sherrill referred the employee to Dr. Selhorst, a neurologist. (P.T.144-145, 736).
On January 27, 1999, Dr. Selhorst evaluated the employee. (P.T. 145, 732). Employee related that several weeks after Dr. Vest's surgery, he developed symptoms in his right shoulder similar to the pain he had in his right thigh. After examining employee and reviewing his medical records, Dr. Selhorst concluded that employee had a fairly classical form of diabetic amyotrophy, which was characterized by a painful proximal weakness of the lower extremities. (P.T. 145, 733). Dr. Selhorst opined that the employee's pain should be managed with an analgesic. Dr. Selhorst recommended that the employee use a walker or wheelchair. The employee used a walker until approximately two weeks prior to hearing. (P.T. 67-69, 145, 733).
On February 8, 1999, employee returned to Dr. Selhorst. At that time, Dr. Selhorst recommended that employee see Dr. Green for his diabetes. (P.T.145-146, 727, 730). The employee followed up with Dr. Green, who referred him to Alton Memorial Hospital for instruction on meal planning and use of a glucose meter. (P.T.740-749). When the employee met with the nurse at Alton Memorial Hospital, he advised her that he was having difficulty controlling his blood sugar level. (P.T.146, 743). Dr. Green also referred the employee to Alton Physical Therapy. Beginning in March 1999, the employee participated in physical therapy for several months. While the purpose of physical therapy was to increase the strength in employee's leg, it failed to do so. (P.T.270).
The employee returned to Dr. Mendelsohn on March 12, 1999. Upon examining the employee and reviewing additional medical records, Dr. Mendelsohn did not have an explanation for employee's symptoms. (P.T.147, 470-471). He recommended an additional MRI of employee's lumbar spine. Upon reviewing the MRI, Dr. Mendelsohn did not see any evidence of a surgical lesion, i.e., a nerve root impingement, or a herniated disc. (P.T.472). Dr. Mendelsohn informed the employee that he could not identify any problem in the employee's spine, which was responsible for his right leg weakness. Additionally, Dr. Mendelsohn told the employee that he did not have a surgical problem and that surgery would not help his condition. (P.T.147, 470-471,738).
The employee followed up with Dr. Selhorst on April 14, 1999. While Dr. Selhorst recommended that claimant be referred to Dr. Hyatt, the employee did not follow up with Dr. Hyatt at that time. (P.T.148, 150-151, 726).
Rather than following Dr. Selhorst's recommendations, the employee, on his own, consulted Dr. Reynolds on November 2, 1999. Employee reported that before surgery, he had pain in the right leg and was able to be up and around, but since surgery, he had weakness in the leg and progressive atrophy of the thigh. In addition to right leg pain, the employee had pain in his right arm and side. Upon examining the employee and reviewing his medical records, Dr. Reynolds' assessment was persistent right L3-L4 herniated disc with right L3-L4 radiculopathy. He recommended a lumbar MRI. (Tr.267-268).
Charles Bock returned to Dr. Reynolds on November 18, 1999. Upon reviewing the employee's diagnostic studies, Dr. Reynolds found that the employee had a foraminal fragment on the right at L3-L4, as well as multilevel degenerative disc disease from L1 down. Dr. Reynolds concluded that the employee required surgical correction at the L3-L4 level. Moreover, Dr. Reynolds opined that the employee's job as a heavy-duty truck mechanic, whereby he suffered repetitive trauma over the years, accounted for the severe degenerative changes throughout the employee's lumbar spine. Similarly, Dr. Reynolds concluded that the right lateral disc herniation with acute L3 radiculopathy was a consequence of the employee's April 23, 1998, slip and fall. The doctor's reason for recommending surgery at L3-L4 was his opinion that the original surgery performed by Dr. Vest did not achieve the stated goal of removing the foraminal fragment at L3-L4 on the right, and that the employee currently had instability at that level, which might or might not relate to his prior surgery at L3-L4. Dr. Reynolds' diagnoses, as of November 18, 1999, were persistent right L3-L4 lateral disc and instability at L3-L4. (Tr.264-265).
On December 8, 1999, Dr. Reynolds performed an L3-L4 lumbar interbody fusion with pedicle screws. (Tr.459-461). When employee returned to Dr. Reynolds on December 28, 1999, he showed improvement in right leg strength. The employee had bilateral reinnervation pain, worse on the left than the right. Dr. Reynolds recommended that employee begin a walking program. (Tr.263). On January 25, 2000, employee reported to Dr. Reynolds that he had had virtually no back pain since surgery. While employee had a dramatic increase of strength in his right leg, his iliopsoas were still weak at 3/5. X-rays showed excellent alignment of the instrumentation. (Tr.262). During his February 21, 2000, examination, the employee reported that he was still intolerant of stairs because of weakness in his legs. When he returned to Dr. Reynolds on April 4, 2000, the employee related a lot of achy pain in his groin and in the quads. He had been working very hard at physical therapy. While the employee's quads were $4+, he was still areflexic at both knees, and his iliopsoas were at 3 / 5$. The employee was to return in two months. If his iliopsoas strength was not improved at that time, Dr. Reynolds would repeat the myleogram and post-myleogram CT. (Tr.260-261).
When the employee returned on May 30, 2000, his iliopsoas weakness had not improved. He remained at $3+/ 5 in the right iliopsoas. The quads were 4+$. While it was Dr. Reynolds' belief that the employee had a persistent, rather than recurrent, disc at the L3-L4 level, Dr. Reynolds could not state this opinion at the level of reasonable medical probability. (Tr.259). Dr. Reynolds informed the employee that because of persistent weakness in the iliopsoas, he needed to undergo another myleogram and post-myleogram CT to make sure that the disc fragment had been fully removed and the nerve roots were free. (Tr.259-260).
Dr.Reynolds' review of the myleogram showed no evidence of either a recurrent or persistent L3-L4 disc. There now appeared to be a subluxation at L1-L2. Dr. Reynolds opined that the back pain that employee had might relate to the subluxation. Instrumentation was in good position. The fusion at L3-L4 appeared to be solid. Dr. Reynolds did not see any residual compression that would explain the employee's persistent iliopsoas and quad weakness. Employee returned to Dr. Reynolds on July 25, 2000, with the same subjective complaints. He reported difficulty, particularly with walking and getting up, when he had been sitting for a period. At that time, Dr. Reynolds' diagnoses were persistent right leg pain, healed L3-L4 fusion, and stable L1-L2 subluxation. (Tr.256257). The claimant expired on September 27, 2000.
At the initial hearing in August 1999, the employee testified regarding that he was falling. If the employee was standing straight on his leg and not moving, his right leg would support his weight. However, if the employee took his right leg out of a locked position, or bent his knee, he would fall to the floor. He fell some two to three times per week. The only way that employee was able to walk was by locking his right knee in a straight position. (P.T.71). Moreover, employee was not able to stand for more than twenty or thirty minutes without having pain. He could walk two hundred feet. Also, the employee had problems going up and down steps. He used a railing for support and could only go up or come down one step at a time. (P.T. 72-73, 157).
Employee testified that, at no time since Dr. Vest's surgery, had he been pain free in his right leg. He had pain twenty-four hours a day. This pain was seldom less than a ten on a 1-10 scale. The employee had a tingling sensation in his right leg that went throughout the leg down into his foot. (P.T.63, 74). He was unable to sleep through the night, because pain in his arms, legs and back woke him up. (P.T. 79).
Even though the employee could not sit for a long period of time, he had no trouble driving his truck, since it had a lumbar support. While it did not hurt employee's back to drive, he did not have enough strength in his right foot to push down hard on the pedal. The employee rode with his hand on his right knee, so that he could push down the gas pedal. (P.T.74-75).
On an average day, employee went out into the garage after eating breakfast and reading the paper. While in the garage, employee cleaned up and worked on his racecar. He was able to change the oil on the car, grease it, and air the tires because he had a creeper that he could sit and roll around on while working. (P.T.76, 158). However, the employee had a problem getting off of the creeper. It took employee twice as long as it used to, to perform maintenance work on his racecar. (P.T.76-77, 158-159). Approximately two weeks prior to hearing, the employee performed a brake job on a Monte Carlo and a tune-up on a new van. Performing these jobs did not increase the employee's pain. (P.T.80, 159-161). At the time of the original hearing, the employee was not taking any pain medications. Nor was he using a walker or cane. (P.T.80, 164).