delivered the Opinion of the Court.
Claimant Samuel J. Grenz appeals from a May 14, 1992, order of the Workers’ Compensation Court dismissing with prejudice consolidated cause WCC No. 9202-6378 on res judicata grounds. We reverse.
Samuel Grenz injured his right elbow while working for the American Stud Company in Flathead County, Montana, on August 22,1984. That accident and related claims have resulted in eight prior appeals by Grenz to this Court, three in 1991 alone. In each case, we affirmed the district court’s or Workers’ Compensation Court’s action rejecting Grenz’s claims.
Subsequent to our last decision, Grenz filed new claims. These claims were consolidated as cause WCC No. 9202-6378. The claim specifically at issue here is Grenz’s assertion that his current degenerative arthritis was caused by work-related micro-trauma separate and apart from, and subsequent to, the August 1984 injury. Fire and Casualty of Connecticut (the insurer) denied liability on the basis that the claim was not filed timely and later moved the Workers’ Compensation Court to dismiss Grenz’s petition with prejudice.
The insurer asserted two arguments in its motion to dismiss: first, that the micro-trauma claim was barred by res judicata; and second, that the claims were barred because not filed timely. The Workers’ Compensation Court applied res judicata in granting the motion to dismiss. It did not address whether the claims are time barred.
The sole issue we address is whether the Workers’ Compensation Court erred in concluding that res judicata bars the micro-trauma claim.
The corut correctly set forth the four substantive criteria which must be met for the doctrine,of res judicata to apply: (1) the parties or their privies must be the same; (2) the subject matter of the action must be the same; (3) the issues must be the same and relate to the same subject matter; and (4) the capacities of the persons must be the same in reference to the subject matter and to the issues.
Whirry v. Swanson
(Mont. 1992),
The issue in
Grenz
was whether the Workers’ Compensation Court erred in ruling that claimant was not permanently totally disabled “as a result of his August 22, 1984, right elbow injury.”
After reviewing the entire record in this case, we hold that there is substantial credible evidence to support the Workers’ Compensation Court’s finding that the claimant failed to establish a causal connection between his current physical condition and his 1984 right elbow injury.... [A] causal connection between the claimant’s current physical problems and his 1984 right elbow injury is not present.
Id.
at 380,
Claimant did attempt to raise the micro-trauma issue on appeal in
Grenz.
The insurer argued that Grenz was asserting a different theory on appeal than was presented to the Workers’ Compensation Court. We agreed, stating “[o]ur review of the record shows that the claimant admitted at trial that the sole basis for his claim to benefits
in that proceeding
was his 1984 injury.”
Id.
at 379,
[O]n appeal, we will consider only whether the Workers’ Compensation Court properly determined that the claimant failed to establish a causal connection between his current physical condition and his August 22, 1984, right elbow injury and, therefore, was not permanently totally disabled as a result of the 1984 injury.
Id.
at 379-80,
Grenz does not support the Workers’ Compensation Court’s determination that lack of causal connection between claimant’s current condition and any and all work-related events was established therein. The criteria necessary for application of res judicata not being met, *124 we conclude that the Workers’ Compensation Court erred in dismissing Grenz’s micro-trauma claim on the basis of res judicata.
It is appropriate to note here that we sympathize with the frustration and expense these proceedings have caused all involved. Indeed, we previously have expressed our concern over the multiplicity of claimant’s proceedings and the overall “cost” of those proceedings to the finite resources of the judicial system. See
Grenz v. Medical Management Northwest
(1991),
Reversed and remanded with instructions to the Workers’ Compensation Court to proceed to a determination of the insurer’s alternative basis for its motion to dismiss, namely, that Grenz’s latest claims are time barred.
