To prove permanent total disability, claimant must show she is unable to return to any employment, not just unable to return to the employment she was engaged in when the injury occurred. Muller v. Treasurer of Missouri, 87 S.W.3d 36 (Mo.App. 2002). (Overruled by Hampton, 121 S.W. 3d at 220). The test is the claimant's ability to compete in the open labor market. Id. The "crucial question is whether or not an employer can reasonably be expected to hire claimant in her present physical condition and can reasonably expect her to perform the work successfully." Id. However, SIF is not responsible for the progression of pre-existing conditions that develop after the work injury. Wilhite v. Hurd, 411 S.W.2d 72, 77 (Mo. App. 1967). (Overruled by Hampton, 121 S.W. 3d at 220).
I find Dr. Poetz's opinion not credible that Claimant is PTD due to a combination of the primary injury and pre-existing conditions. Before the work accident, Claimant received numerous injections, physical therapy and medication for back and bilateral knee problems. However, no physician imposed work restrictions for these conditions. Also, there was no recommendation for knee replacements. After the work accident, Dr. Poetz imposed restrictions based on pre-existing back and knee problems, and the need to avoid activity that "accelerates the disease process."
Furthermore, Claimant testified she failed to meet quotas when she returned to work because she needed frequent breaks to avoid eyestrain and radiating pain from her low back to her hips, legs, and knees. The record contains no evidence Claimant was unable to work because of the Achilles tendon injury.
Claimant gave contradictory testimony about the condition of her knees after the work accident. She testified her knees felt worse at times, but overall remained the same. She also testified the left knee is painful, the right is unstable, and she stumbles on uneven ground. This is a change in the level and type of symptoms reported before 2001.
In 2005, Claimant stopped receiving injections because they no longer helped, and Dr. Poetz predicted Claimant would require bilateral arthroplasties. Her left knee was replaced a year later and three doctors have recommended a right knee replacement. In addition, Claimant takes medication for her knees and back but not the Achilles tendon.
I find Mr. England's testimony not credible that Claimant is PTD due to the primary injury and pre-existing conditions. Mr. England considered the left knee replacement and the recommended right knee replacement when concluded Claimant was PTD. However, the left knee was replaced five years after the work accident and the right knee had not been replaced by the date of hearing.
In addition, Mr. England concluded Claimant's academic and management skills were transferable to light or possibly sedentary work; if she did not have physical limitations. However, Claimant testified she stopped working because of back and knee pain, and eye strain.
Based on Claimant's testimony, expert opinions from Dr. Poetz and Mr. England, medical reports and medical records, I find Claimant's pre-existing back and knee conditions progressed after the work accident. I find SIF is not liable for the progression of the degenerative conditions. I find Claimant failed to prove PTD based on the primary
injury and pre-existing disability.