Cepero Review: Material Historical Errors, Not Medical Disagreement, Determine Evidentiary Sufficiency

1. Introduction

This workers’ compensation appeal concerns the boundary between a legally insufficient medical opinion and a permissible disagreement among medical experts. Joshua Eaton attributed a serious right hip and thigh infection, together with associated neurological injury, to a workplace fall. His employer, Scott Waste Service, maintained that uncontrolled diabetes and a history of spontaneous infections supplied the more likely explanation.

The administrative law judge, Honorable Tonya M. Clemons, accepted Dr. Fadel’s causation opinion and awarded benefits. Scott challenged that opinion under Cepero v. Fabricated Metals Corp., 132 S.W.3d 839 (Ky. 2004), arguing that an inadequate understanding of Eaton’s prior medical history deprived it of substantial evidentiary value. The Workers’ Compensation Board and Court of Appeals rejected the challenge.

The Supreme Court affirmed, but qualified portions of the lower tribunals’ reasoning. A Cepero challenge does not require an “egregious” omission or a medical-history defect obvious to a layperson. Nevertheless, an appellate court cannot invalidate an expert opinion by independently resolving a disputed medical question. Here, the record supported the conclusion that Dr. Fadel had received and considered the relevant history, leaving the competing medical explanations for the ALJ to evaluate.

2. Background and Procedural History

The fall and subsequent treatment

Eaton began working for Scott as a garbage truck driver in 2019. On January 20, 2022, while moving from his personal vehicle toward his work truck in the employee parking lot, he slipped on ice and landed on his right side. Other employees witnessed the fall, and he immediately reported it to his supervisor. Initially believing that he had merely bruised his hip, he did not immediately obtain medical treatment.

Eaton’s medical history complicated the causation question. He had diabetes, received treatment for buttock abscesses in 2013, and developed left foot diabetic ulcers in 2020. The opinion describes those earlier conditions as having resolved.

When Eaton attended an emergency department on February 13, 2022, the recorded history described hip pain without an injury. A CT scan did not identify a hematoma. Two days later, an MRI identified a partial gluteus medius tear and a right hip hematoma, although the accompanying history again indicated no trauma. Later records documented the workplace fall. Eaton eventually required extensive treatment for a right thigh abscess and related complications, including foot drop.

These inconsistencies were central to the employer’s defense. Eaton explained that his wife supplied the early medical history while he was receiving narcotic pain medication. The ALJ accepted that explanation as plausible rather than treating the initial records as conclusive proof that no relevant fall occurred.

The competing medical explanations

• Dr. Fadel: His November 22, 2022 report attributed bleeding around the hip and thigh to the fall, followed by infection. After reviewing additional historical records and Dr. Cancian’s reports, he explained in a November 30, 2023 addendum that the traumatic hematoma provided a culture medium that activated previously dormant bacteria. He maintained his causation conclusion and assessed a sixteen percent whole-body impairment.
• Dr. Cancian: Initially, he attributed permanent impairment to the workplace incident and assessed ten percent whole-person impairment. After reviewing additional records, he reversed his causation opinion. He considered spontaneous diabetic abscesses more likely and questioned both the delayed reporting of trauma and the claimed relationship between the fall and infection.
• Dr. Wolens: Following a records review, he rejected work-related causation. He emphasized Eaton’s diabetic infection history, the early records denying trauma, and the absence of a hematoma on the CT scan shortly before one was identified on MRI. He suggested that the MRI finding might instead represent an early abscess.

Importantly, Dr. Fadel distinguished Eaton’s thigh condition from his diabetic right foot infection. He did not attribute the latter to the workplace fall.

The award and successive appeals

The ALJ credited Dr. Fadel’s explanation, finding that the workplace fall caused the compensable right lower-extremity injury. She awarded temporary total disability benefits, permanent partial disability benefits based on a sixteen percent impairment rating enhanced by a two-multiplier, and medical benefits. She dismissed the claims associated with the diabetic right foot ulcer and fifth-toe amputation.

After reconsideration was denied, Scott appealed to the Board, then the Court of Appeals, and finally the Supreme Court. The central appellate question remained narrow: whether Dr. Fadel’s opinion could constitute substantial evidence of causation under Cepero. The appeal did not require a separate determination of the impairment percentage or benefit enhancement.

3. Summary of the Opinion

The Supreme Court upheld the award through affirmance of the Court of Appeals. Its reasoning has four principal components:

1. No heightened omission requirement: Cepero does not require an egregious omission, deliberate concealment, or a defect apparent to a layperson before a medical opinion can fail as substantial evidence.
2. The record supported informed consideration: Dr. Fadel’s addendum demonstrated consideration of Eaton’s historical abscesses and of the contrary medical assessment contained in Dr. Cancian’s addendum.
3. The remaining disagreement was medical: Whether the 2020 foot ulcer contradicted the conclusion that the earlier buttock-related condition had remained dormant could not be decided merely by comparing dates. It required a medical judgment about the relationship between different conditions.
4. The ALJ retained the fact-finding role: Because the record did not establish the disqualifying historical defect Scott alleged, the ALJ could choose Dr. Fadel’s explanation over the competing opinions.

The Court therefore affirmed the result without endorsing every formulation used below. The lower tribunals’ references to egregious omissions and layperson-obvious relevance were not necessary to sustain their judgments.

4. Analysis: Precedents Cited

A. The controlling evidentiary principle

Cepero v. Fabricated Metals Corp., 132 S.W.3d 839 (Ky. 2004)

Cepero supplied the central rule. There, medical opinions attributing a knee condition to employment rested on an inaccurate or substantially incomplete account of a serious previous injury to the same knee. The history included a significant nondisclosure and efforts to conceal the earlier injury.

The rule, however, was not limited to dishonest claimants. As quoted in the present opinion, when a physician’s causation history is irrefutably corrupted by substantially inaccurate or largely incomplete information, the resulting opinion cannot constitute substantial evidence. An opinion resting on erroneous or deficient information and wholly unsupported by other credible evidence cannot be reasonably probable.

The Supreme Court distinguished Cepero because Dr. Fadel considered the historical conditions rather than proceeding without them. His explanation might be disputed, but disagreement about its medical soundness did not itself establish a substantially false factual foundation. The Court also rejected the suggestion that Cepero imposes an automatic requirement to recite every prior medical condition.

Eddie's Service Center v. Thomas, 503 S.W.3d 881 (Ky. 2016)

In this case, a physician’s opinion about a worker’s death depended substantially on an understated description of the worker’s physical exertion. The doctor treated the activity as relatively minimal, although the evidence described strenuous climbing on a steep embankment and repeated work beneath a truck.

This precedent showed that Cepero extends beyond omissions of medical history: a material error about the work activity itself can undermine a medical opinion. It also illustrated the distinction decisive here. A court could identify the mismatch between the doctor’s account and the factual testimony without deciding a disputed medical issue.

Currens v. RJ Insulation, No. 2020-SC-0298-WC, 2021 WL 1679567 (Ky. Apr. 29, 2021)

In Currens, the physician possessed the relevant records but incorrectly stated that the claimant had not sought treatment for cervical radiculopathy since 2010. The records showed treatment for that condition only days before the injury. The ALJ properly rejected the report under Cepero.

The significance is substantial: access to records does not automatically validate an opinion. A physician may receive the complete file yet base a conclusion on a demonstrably inaccurate factual proposition. In Eaton’s case, however, the alleged contradiction depended on whether the foot ulcer and buttock-related abscess condition were medically connected—an issue not established merely by the existence of both conditions.

Lexington Fayette Urban County Government v. Gosper, 671 S.W.3d 184 (Ky. 2023)

Gosper restated Cepero in both specific and general terms. A causation opinion cannot qualify as substantial evidence when its historical foundation is irrefutably corrupted by substantial inaccuracy or incompleteness. More generally, an opinion cannot be reasonably probable when founded on erroneous or deficient information completely unsupported by other credible evidence.

This formulation reinforced the Court’s refusal to require an egregious or layperson-obvious omission. At the same time, it required an established foundational defect, not simply a competing expert’s different interpretation of the available history.

B. The ALJ’s authority and the standard of review

Oufafa v. Taxi, LLC, 664 S.W.3d 592 (Ky. 2023), and Apple Valley Sanitation, Inc. v. Stambaugh, 645 S.W.3d 434 (Ky. 2022)

The Court quoted Oufafa, itself quoting Apple Valley Sanitation, for the ALJ’s sole authority to assess evidentiary weight, credibility, substance, and permissible inferences. This allocation of responsibility prevented the appellate courts from selecting their preferred medical explanation once Dr. Fadel’s opinion survived the legal sufficiency challenge.

Whittaker v. Rowland, 998 S.W.2d 479 (Ky. 1999)

Whittaker supplied the principal framework for review. The ALJ may accept or reject portions of testimony, including different portions from the same witness. When the party bearing the burden of proof succeeds before the ALJ, the appellate question is whether substantial evidence supports that result—not whether another conclusion was available.

Paramount Foods, Inc. v. Burkhardt, 695 S.W.2d 418 (Ky. 1985)

Cited through Whittaker, this decision supported the ALJ’s ability to believe some evidence while rejecting other evidence. That principle matters where historical facts, claimant testimony, and expert interpretations do not align neatly.

Special Fund v. Francis, 708 S.W.2d 641 (Ky. 1986)

Also cited through Whittaker, this case supported substantial-evidence review when the claimant has prevailed before the ALJ. Scott therefore needed to demonstrate an evidentiary insufficiency, rather than merely assemble persuasive evidence favoring the employer.

Smyzer v. B.F. Goodrich Chem. Co., 474 S.W.2d 367 (Ky. 1971)

This authority supplied the definition of substantial evidence: evidence of substance and relevant consequence capable of inducing conviction in reasonable minds. The standard does not demand unanimity among physicians or the elimination of every competing explanation.

McCloud v. Beth-Elkhorn Corp., 514 S.W.2d 46 (Ky. 1974)

Cited through Whittaker, McCloud establishes that contrary evidence, even evidence capable of supporting a different outcome, is not by itself sufficient for appellate reversal. Thus, the reports of Drs. Cancian and Wolens did not automatically defeat the award.

Copar, Inc. v. Rogers, 127 S.W.3d 554 (Ky. 2003)

The Board relied on Copar for the ALJ’s broad discretion to choose among conflicting medical opinions. Its role was complementary to Cepero: the ALJ may select among legally sufficient opinions, but discretion cannot rescue an opinion whose factual foundation makes it legally insufficient.

C. The intermediate appellate decision

Scott Waste Serv. v. Eaton, No. 2024-CA-0970-WC, 2026 WL 118814 (Ky. App. Jan. 16, 2026)

The Supreme Court repeatedly examined the Court of Appeals’ reasoning in this same litigation. It accepted the conclusion that Dr. Fadel had been sufficiently informed and that omission of an express discussion of every historical condition did not invalidate his report.

However, the Supreme Court did not adopt the Court of Appeals’ proposed limitation that omitted history must be obviously relevant even to a layperson. The proper distinction was between a record-demonstrable foundational defect and an objection requiring appellate resolution of a disputed medical question.

5. Legal Reasoning

Distinguishing evidentiary sufficiency from persuasiveness

The decision separates two inquiries. First, is the medical opinion sufficiently grounded in accurate information to count as substantial evidence? Second, if it is, how persuasive is it compared with other evidence? Cepero governs the first inquiry; the ALJ ordinarily controls the second.

This distinction prevents both extremes. An ALJ cannot rely on a demonstrably corrupted opinion merely by invoking credibility. Conversely, an appellate court cannot transform every expert disagreement into a legal defect and thereby retry medical causation.

Why the additional historical review mattered

Dr. Fadel’s addendum was central because it showed more than a general assertion that records had been reviewed. He identified the earlier abscess history, expressly considered Dr. Cancian’s report and addendum, and explained why the newly supplied information did not change his ultimate conclusion.

His reasoning also addressed the pre-existing condition rather than denying its existence. The proposed mechanism was that the fall produced a hematoma, which enabled dormant bacteria to become an active infection. Thus, the earlier abscesses became part of his causal explanation rather than omitted contrary facts.

The Court did not announce that an addendum automatically cures every historical defect. Currens demonstrates otherwise: the physician’s actual factual understanding remains critical. Here, the content of the addendum supported the finding that the relevant history had been considered.

Why the 2020 ulcer did not establish a factual contradiction

Scott argued that a diabetic foot ulcer in 2020 necessarily disproved Dr. Fadel’s statement that the relevant condition had been dormant for nine years. That argument assumed the very medical connection in dispute.

The occurrence of a foot ulcer was a historical fact. Whether it represented continued activity of the same condition associated with the earlier buttock abscesses was a medical question. The Supreme Court declined to infer that relationship independently. Its reasoning did not make anatomical location conclusive; rather, different conditions could not be equated without the necessary medical foundation.

Why the imaging dispute did not require reversal

The CT and MRI findings supplied a substantial challenge to Dr. Fadel’s theory. Dr. Wolens questioned how a traumatic hematoma could be absent on one study and identified two days later on another. The ALJ nevertheless preferred Dr. Fadel’s explanation in the context of the treatment records and testimony.

The Supreme Court did not resolve which imaging interpretation was medically correct. The appeal concerned whether Dr. Fadel’s opinion was disqualified under Cepero, not whether the Court independently found his medical account superior.

Affirmance without approval of every rationale

The Court expressly rejected additional prerequisites suggested below, yet affirmed because the record independently supported the result. This is important to the opinion’s meaning: neither “egregiousness” nor layperson-obvious relevance became a threshold requirement. The decisive point remained the absence of an established historical defect that could be identified without deciding the disputed medical relationship.

6. Potential Impact

Subject to its unpublished status, the opinion offers practical guidance for Kentucky workers’ compensation litigation:

• For parties challenging expert opinions: Identify the precise inaccurate statement or material omission and demonstrate its factual basis. A competing diagnosis or different interpretation of the same records is not necessarily a Cepero defect.
• For medical experts: Meaningful supplemental review can be important. Addressing newly supplied history and explaining whether it changes the causal analysis is stronger than simply acknowledging receipt of records.
• For ALJs: Explain why an asserted historical defect does or does not undermine an opinion, and distinguish that question from the choice between competing medical explanations.
• For appellate courts: Enforce factual reliability without substituting judicial medical conclusions for supported expert opinions.

The opinion also illustrates that accepting a work-related aggravating event does not require attributing all later medical problems to employment. The award covered the thigh-related injury while excluding the unrelated diabetic foot ulcer and toe amputation.

Its limits are equally important. It establishes no general rule that diabetic infections are compensable, that dormant conditions always become compensable after trauma, or that expert access to records guarantees substantial evidence. The holding rests on this record and this causation dispute.

7. Complex Concepts Simplified

Substantial evidence

Evidence strong enough for a reasonable fact-finder to rely on. It need not be uncontested or the only plausible explanation.

A Cepero defect

A sufficiently serious problem with the factual foundation of a medical opinion that prevents the opinion from supporting a legal finding. It is more than ordinary disagreement between experts.

Legal sufficiency versus evidentiary weight

Sufficiency asks whether an opinion can support the decision at all. Weight asks how convincing it is compared with other evidence.

Medical causation

The connection between an event and a medical condition. Here, the disputed connection was whether the fall caused bleeding that developed into an infection.

Hematoma and abscess

A hematoma is a collection of blood outside blood vessels. An abscess is an infected collection of pus. The experts disagreed about what developed and why.

Dormant condition

A condition that exists but is inactive. Dr. Fadel believed the fall created circumstances that activated a previously quiet bacterial condition.

Foot drop

Weakness affecting the ability to lift the front of the foot, here associated with the claimed thigh-related neurological injury.

Temporary total and permanent partial disability benefits

Different forms of workers’ compensation benefits addressing temporary disability and lasting partial impairment. Their calculation was not the central issue on appeal.

8. Conclusion

The Supreme Court preserved the distinction between correcting an expert opinion’s demonstrably unreliable factual foundation and reweighing a genuine medical dispute. Cepero requires neither an egregious omission nor a defect obvious to a layperson. But it does not authorize appellate courts to resolve contested medical relationships independently.

Because Dr. Fadel considered the relevant history and explained why it did not alter his causation conclusion, the ALJ could rely on his opinion. The unanimous affirmance is a useful, expressly nonbinding clarification of evidentiary review—not an endorsement of every statement made by the tribunals below.