There is insufficient evidence to tie Claimant's altered right gait to either the left knee injury or to the severed toe injury or both. Thus Dr. Cohen's opinion on disability too broad.
Dr. Nogalski and Dr. Rende are too conservative in their judgment that all Claimant's left knee problems were preexisting. Claimant was able to play racquetball, a sport requiring constant stopping, twisting, bending at the knees, extension, rotation and stress on the knee. He performed this sport at a very high level of competition. Claimant also walked everyday as part of his job over long distances on concrete with no problems.
I think it is highly likely that Claimant did injure the meniscus on the sewer lid. I think all the other injuries to the knee were pre-existing. Thus, the facts and the reality are more consistent with Dr. Cohen's opinions. Claimant was okay until the injury, playing a high level of racquetball and working daily walking. Then the injury to the meniscus caused the knee to worsen and the last straw was now in place to break the camel's metaphorical back.
Nevertheless, I disagree with Dr. Cohen that the lawnmower incident can be attributed to the original injury. The lawn mower incident is too far removed in time to be causally related to the knee injury two years earlier. Knee treatment had long since concluded and the mechanism of the toe injury does not clearly and directly indict the weakened knee. The Claimant was on a slope not using safeguards and the lawnmower blades clearly constituted an intervening superseding event. The Employer does not become the Insurer of all of Claimant's subsequent injuries to a weakened compensable body part.
The later injury is not incidental to and is completely independent of the employment relationship. Thus, there is a different standard for linking future medical to the original incident than there is for tying future events to prior accidents. However, the lawnmower incident is not a natural consequence of a knee injury. Severing the toe is not a direct and natural result of a meniscus tear. These natural consequence concepts contours were recently explored by the Commission in the context of aggravation of an injury by treatment:
In Larson's treatise on workers' compensation law, the author explores the range of compensable consequences that can result after the primary injury occurs.
A distinction must be observed between causation rules affecting the primary injury . . . and causation rules that determine how far the range of compensable consequences is carried, once the primary injury is causally connected with the employment. . . . [W]hen the question is whether compensability should be extended to a
subsequent injury or aggravation related in some way to the primary injury, the rules that come into play are essentially based upon the concepts of "direct and natural results," and of claimant's own conduct as an independent intervening cause.
The basic rule is that a subsequent injury, whether an aggravation of the original injury or a new and distinct injury, is compensable if it is the direct and natural result of a compensable primary injury.
The simplest application of this principle is the rule that all the medical consequences and sequelae that flow from the primary injury are compensable. 1. A. Larson, Larson's Workers' Compensation Law, section 10.01.
In other subsections of this same chapter, the author looks more specifically at various circumstances that are compensable.
[1] - Compensability of Aggravation by Treatment
It is now uniformly held that aggravation of the primary injury by medical or surgical treatment is compensable. Examples include exacerbation of the claimant's condition, or death, resulting from . . . pain killers, and other medications . . .
When the injury sustained during treatment or examination is not an aggravation of the work-related injury, but injury to another part of the body, courts have also found the injury to be compensable.
[2] - Irrelevance of Fault or Malpractice of Doctor
Fault on the part of physicians . . . , even if it might amount to actionable tortiousness, does not break the chain of causation. . . .
[3] - Irrelevance of Fault of Others Involved in Treatment
Similarly, injuries due to the negligence of persons other than physicians, connected with the process of treatment . . . , are within the compensable range of consequences.
- A. Larson, Larson's Workers' Compensation Law, section 10.09.
Cypher v. Independant Plumbing \& Interior Electric, L\&RC 01-14356 (March 21, 2006).
In the case at hand, I find actions or negligence on employee's part that acted as an independent intervening cause for the lawnmower incident. Claimant was not cutting sideways on the slope, rather straight up and down. This is not a good safety practice. He also was not wearing steel toe boots or using a safety guard on the mower.
In Lahue v. Missouri State Treasurer, 820 S.W.2d 561, 562 (Mo. App. W.D. 1991)(citations omitted), the employee fell off a chair in a whirlpool and injured her right hip and low back while undergoing whirlpool therapy for an ankle injury that occurred during the course of her employment. The law is well settled, that where a claimant sustains injury arising out of and in the course of her employment, every natural consequence that flows from the injury, including a distinct disability in another area of the body is compensable as a direct and natural result of the primary or original injury. Id.
The difference in the instant case is that the toe incident did not occur as an accident within the contours of an accident as in Lahue. The instant case presents two separate and distinct injuries with only tenuous theoretical connection, but no established direct causal link.
A true copy: Attest:
Jeffrey W. Buker<br>Director<br>Division of Workers' Compensation