Workers' compensation awards for permanent partial disability are authorized pursuant to Section 287.190. "The reason for [an] award of permanent partial disability benefits is to compensate an injured party for lost earnings." Rana v. Landstar TLC, 46 S.W.3d 614, 626 (Mo. App. W.D. 2001). The amount of compensation to be awarded for a PPD is determined pursuant to the "SCHEDULE OF LOSSES" found in Section 287.190.1. "Permanent partial disability" is defined in section 287.190 .6 as being permanent in nature and partial in degree. Further, "[a]n actual loss of earnings is not an essential element of a claim for permanent partial disability." Id. A permanent partial disability can be awarded notwithstanding the fact the claimant returns to work, if the claimant's injury impairs his efficiency in the ordinary pursuits of life. Id. "[T]he Labor and Industrial Relations Commission has discretion as to the amount of the award and how it is to be calculated." Id. "It is the duty of the Commission to weigh that evidence as well as all the other testimony and reach its own conclusion as to the percentage of the disability suffered." Id. In a workers' compensation case in which an employee is seeking benefits for PPD, the employee has the burden of not only proving a work-related injury, but that the injury resulted in the disability claimed. Id. Missouri courts have routinely required that the permanent nature of an injury be shown to a reasonable certainty, and that such proof may not rest on surmise and speculation. Sanders v. St. Clair Corp., 943 S.W.2d 12, 16 (Mo.App. S.D. 1997). A disability is "permanent" if "shown to be of indefinite duration in recovery or substantial improvement is not expected." Tiller v. 166 Auto Auction, 941 S.W.2d 863, 865 (Mo.App. S.D. 1997).
In this case, the claimant has a long history of left hand abnormalities from over the past fourteen years, beginning in 1994. By 2004, the claimant's condition became severe, and Dr. Sudekum diagnosed work related carpal tunnel syndrome. In 2004 and 2005, Dr. Sudekum performed two carpal tunnel release surgeries to reduce the claimant's wrist pain. One was endoscopic and the other an open procedure.
Starting in March 2006, the claimant's medical condition seemed to vary widely over time. In March 2006, six months after the last surgery, Dr. Sudekum reported that the claimant "appears to be making a good
recovery from his ... surgery. The pain and paresthesias ... have improved. He no longer has any significant pain but does complain of persistent, intermittent paresthesias of his left hand. He currently has full, normal strength, range of motion and sensation of the left hand and no objective evidence of significant ongoing left median neuropathy." Dr. Sudekum also reported negative Phalen's and Tinel's signs. See Exhibit D.
However, six months later, in September 2006, Dr. Poetz reported that the claimant had "a pain level of 8 out of 10 on his worst days and 6 out of 10 on his better days." See Exhibit A. He also found, "Phalen's and Tinel's signs are equivocal on the left. Grip strength is decreased bilaterally to $3 / 5 on the left and 4 / 5$ on the right. There is decreased pinprick sensation in the median nerve distribution on the left." The claimant reported that his pain was over his entire hand, and that his hand at rest tended to contract and cramp up. See Exhibit A.
On January 8, 2008, two years after the last surgery, Dr. Lenk conducted a nerve conduction test and concluded that the claimant had test results consistent with residual right carpal tunnel syndrome, bilateral cubital tunnel syndrome, and prolonged median F-waves "on the left, suggestive of a left C5 radiculopathy." See Exhibits 7, 8. Dr. Lenk found no suggestion of carpal tunnel syndrome in the claimant's left hand from the nerve conduction test. See Exhibits 7, 8.
At the hearing, three years after the last surgery, the claimant testified that he had developed left hand cramping in the ten months before the hearing. The claimant left the employ of this employer in December 2005, and his cramping developed sometime later. None of the experts linked the cramping to the claimant's work for this employer. He also testified that at its worst, his pain is 4 to 5 out of 10 , and on good days, the pain is 3 out of 10 . The cramping seems to cause him to drop objects and slows his work. He testified that he has some loss of strength. He also testified that he currently has ongoing numbness, lack of dexterity, and that his hand wakes him up at night.
Dr. Poetz opined that the claimant suffered a 50\% permanent partial disability to his left wrist. See Exhibit A. Dr. Sudekum opined that the claimant suffered from an 8 % permanent partial disability. None of the evidence suggests that the claimant suffered from any preexisting permanent partial disability. The fact finder is not bound by the percentage estimates of a medical expert and is free to find a disability rating higher or lower than that expressed in medical testimony. Patchin v. National Super Markets, Inc., 738 S.W.2d 166, 167 (Mo.App. E.D. 1987), see also Wiedower vs. ACF Industries, Inc., 657 S.W.2d 71, 74 (Mo.App. 1983); Quinlan vs. Incarnate Word Hospital, 714 S.W.2d 237, 238 (Mo.App. 1986); and Sellers vs. TWA, 776 S.W.2d 502, 505 (Mo.App. 1989).
Although the claimant had two left wrist surgeries, his left wrist bears residual disability. Two forensic experts, Dr. Poetz and Dr. Sudekum, so opined. The claimant reported impaired functioning at work and in the ordinary affairs of life. Although the claimant works full time without restrictions in the same occupation he held before the occurrence, his testimony and the medical reports suggest pain, weakness, and loss of dexterity. However, the difficulty in this case results from inconsistent medical reports and records.
More specifically, the reports from Dr. Sudekum suggest much less impairment than Dr. Poetz' findings suggest. In addition, Dr. Lenk's nerve conduction test finds no trace of carpal tunnel syndrome but suggest an additional medical condition (a left C5 radiculopathy) that may result in disability to the claimant's left hand.
Looking at the claimant's specific complaints that he detailed at the hearing, he testified that he had: loss of strength, ongoing numbness, lack of dexterity, and his hand wakes him up at night. At its worst, his pain is 4 to 5 out of 10 , and on good days, the pain is 3 out of 10 . In addition, he testified that he had developed left hand cramping in the ten months before the hearing, and he cramping seems to cause him to drop objects and slows his work.
The claimant's level of pain (on a scale of 10) at the hearing (3 to 5) is about half of the level reported in September 2006 by Dr. Poetz (6 to 8). Dr. Poetz reported that the claimant had cramping in his hand, but the claimant testified that he developed cramping in his hand over the last 10 months (January 2008 to November 2008). Dr. Poetz apparently considered both of those aspects of the claimant's condition, severe and constant pain and cramps in arriving at his evaluation of a 50\% permanent partial disability. Thus, Dr. Poetz' opinion are based on a more severe level of pain than the claimant has today and a medical condition (hand cramps) that are not clearly linked to the work related carpal tunnel syndrome. None of the experts linked the cramping to the claimant's work for this employer. Dr. Lenk suggested that the cramps are a product of a left C5 radiculopathy. Thus, Dr. Poetz' evaluation may overstate the claimant's disability as it relates to the claimant's work related carpal tunnel syndrome.
The claimant's testimony at the hearing in this case is more consistent (although not exactly the same) with Dr. Sudekum's findings:
The pain and paresthesias ... have improved. He no longer has any significant pain but does complain of persistent, intermittent paresthesias of his left hand. He currently has full, normal strength, range of motion and sensation of the left hand and no objective evidence of significant ongoing left median neuropathy." Dr. Sudekum also reported negative Phalen's and Tinel's signs. See Exhibit D.
This level of symptoms appears to be consistent throughout the medical records and reports. In addition, the evidence supports a finding that the claimant has not been forced to change occupations due to the condition and is not taking medication on a consistent basis due to the condition. In addition, the claimant has no medical restrictions on activities from any physician. Finally, the most recent nerve conduction test from Dr. Lenk shows no finding of residual carpal tunnel in the claimant's left hand.
To be clear, the conditions in the preceding two paragraphs document the claimant's condition pertaining to his work related carpal tunnel syndrome. Both of the forensic experts opined that the claimant suffered permanent partial disability from the occurrence, and the issue is the extent of that disability.
In determining the claimant's disability, the Missouri Labor and Industrial Relations Commission is the final decision maker regarding issues of credibility and disability. Section 287.495, RSMo 2000. Given the disparity of the ratings of the forensic experts in this case, a review and evaluation of Commission cases pertaining to work related carpal tunnel syndrome provides a framework to evaluate the extent of permanent partial disability to be awarded.
In 2007 and 2008 to date, the Missouri Labor and Industrial Relations Commission has reviewed and approved seventeen cases involving a determination of permanent partial disability from carpal tunnel syndrome. The range of permanent partial disability in the awards was from 10 % to 25 %. The median was 171 / 2 %, and one half of the decisions find that the injured employee suffered a 171 / 2 % permanent partial disability. Five decisions reflect a value less than 171 / 2 % and four decisions reflect a value greater than $171 / 2$ %. In almost all cases, even the most severe, the claimant had no restrictions from a physician. However, the three cases reflecting a 20 % disability and in the sole case reflecting a 25 % disability, the claimant suffered from substantial loss of strength and constant pain. The numerical ratings from Dr. Poetz (50\%) and Dr. Sudekum ( 8 % ) in this case appear to be far from the range of other decisions approved by the Commission in the last two years. Some of the Commission cases detail the claimant's condition in the cases that the Commission reviewed.
In Boyer v. Kuenze Heating and Sheet Metal, Slip Op. 05-041331 (Mo. LIRC January 31, 2008), the claimant's rating physician imposed the following restrictions: Minimizing repetitive tasks, no lifting of weights greater than 1-3 pounds with either hand alone, and not handling weights over 5-10 pounds. The claimant
was unable to return to her prior employer due to the restrictions. The claimant was awarded a 20\% permanent partial disability.
In Lewis v. Gerstner Electric Inc., Slip Op. 04-145940 (Mo. LIRC June 24, 2008), the claimant's rating physician found: "He complained ... of extensive symptoms in each hand. He complained both wrists hurt all the time. [The] physical examination revealed equivocal Tinel's signs, positive reverse Phalen's tests, and positive pressure tests." The claimant had settled his case for a 20\% permanent partial disability, which was approved by the Commission.
In Barron v. Johnson Controls Battery Group, Slip Op. 04-041234 (Mo. LIRC February 27, 2007), the claimant had severe carpal tunnel syndrome, had an open carpal tunnel release, lost 20 % of his grip strength, and was awarded a 25 % permanent partial disability. The Findings of Fact reflect:
Claimant testified that his hands and mainly his wrists felt like a sprain. He said that when he has that feeling he cannot function and has no grip in his hands. He said that lasts between twenty-four and seventy-two hours. When that happens he applies cold packs and heat. Activities that cause his hands to flare include lifting logs, pulling brush, and even opening the refrigerator door. He said he could not predict when it would happen. He said his current occupation is lawn and tree service.
Claimant said that both of his arms were the same. He is right-handed. His pain depends on how much he uses his arms. He uses both about the same. He walks behind mowers, which puts a lot of strain on his hands and it is hard to do. He tries to stay with riding lawn mowers. Weed eaters put pressure on his hands. His right hand is a little worse. He has occasional problems dropping things. He did some cement work at his home and dropped fifty-pound bags of cement. The majority of his pain is in his wrists. He has some problems with his fingers. He said his right elbow had recovered pretty well, and he has had no major pain there since his last day at work at Johnson Controls. He got a cortisone shot that pretty much took care of the pain, though it still is a little sore with a lot of use. Pushing, pulling, dragging brush, and pushing mowers cause some problems. He coaches his son and daughter's baseball teams. If he does a lot of throwing, fielding, and hitting, he has problems that affect his work. He gave up bowling and softball. He practices with his bow one hour, three times each week, but he cannot do that nearly as much. When his wrists are acting up he cannot do any squeezing and cannot open a bottle of pop. He cannot do weight lifting when his wrists are acting up.
In Atkins v. Schreiber Foods, et al., Slip Op. 05-029562 (Mo. LIRC April 8, 2008), the Commission approved an award finding that the claimant had a 171 / 2 % permanent partial disability. The Findings of Fact reflect:
Since her surgery Claimant has decreased grip strength. Her hands go numb and she gets cramps. She is unable to peel potatoes or lift a gallon of milk, and has some problems with thumb soreness.
Claimant was laid off while on medical leave for her carpal tunnel syndrome. She attempted to find a job by submitting applications, making phone calls, and sending out her resume. Following her layoff Claimant received unemployment compensation for five months. Claimant was able to find some jobs, but did not take them because they only paid minimum wage.
Claimant currently has a lot of difficulty sleeping, and invested in a hospital bed. She has difficulty lifting or carrying things, and her back prevents her from standing too long. She is only able to walk about one and one-half block. Claimant also has difficulty sitting over an hour. She has to get up and stretch if she sits too long. Claimant has difficulty going to sleep, and gets approximately four to five hours of sleep a night.
Currently Claimant takes aspirin daily for pain. She takes the aspirin for her back, hands, hip, and knees. In a typical day, Claimant watches television or sits on her front porch. She reads a little bit and does some housework. She is
able to fold her clothes, take care of her birds, and cook a little. She is unable to sweep. Claimant has to sit down or lay down during the day because her back bothers her. She occasionally drives, but her hands go to sleep when she drives. It is difficult for her to get in and out of the car because of her back and hips, and she has trouble with steps.
In Maher v. Hannibal Clinic, Slip Op. 00-112981 (Mo. LIRC May 29, 2008), the claimant received an award of 171 / 2 % permanent partial disability on her left hand and 15 % permanent partial disability on her right hand after bilateral carpal tunnel releases. The Findings of Fact reflect:
At the hearing, employee testified that the surgeries did provide some relief, but she still has problems with dropping things, decreased sensation to hot and cold, left hand complaints radiating up to the elbow, mild loss of feeling in the right palm with some swelling and numbness. Her left hand ring and middle finger still go numb on occasion. ... Dr. Volarich noted pain and loss of feeling in the right palm and into the small and ring finger on the right. With respect to the left hand, he noted more severe pain and loss of feeling from the palm into the ring and small fingers. He also noted her fingers occasionally would feel stiff and swollen upon arising in the morning; severe loss of sensation to extremes of hot and cold water and that her hands would still cause her to awaken at night.
In summary, in the Barron case, the claimant had an open carpal tunnel release to relieve his severe carpal tunnel syndrome. In that case, the lowest expert rating was 23 %, and the claimant was awarded a 25 % permanent partial disability. In the Boyer case, the claimant had severe medical restrictions requiring a change in occupation and was awarded a 20 % permanent partial disability. On the other hand, the claimant's symptoms in this case appear to be less severe than those in the Boyer case, because the claimant did not have to change occupations due to work restrictions from his carpal tunnel syndrome. In this case, the claimant's condition more closely resembles those in the Atkins and Maher cases, in which the Commission approved a
171 / 2 % permanent partial disability.