Ajinomoto Foods v. Moore — Affirmed permanent total disability benefits for loss of use of both hands and work-related osteoarthritis

Case
Ajinomoto Foods North America and Liberty Insurance Corporation v. Christy Moore
Court
Mississippi Court of Appeals
Judge
LASSITTER ST. PÉ (elected 2025)
Date Decided
07/28/2026
Docket No.
2025-WC-01107-COA
Topics
Workers’ Compensation; Permanent Total Disability; Occupational Loss; Work-Related Osteoarthritis
Source
Read the full opinion

Background

Christy Moore worked for Ajinomoto Foods North America in jobs requiring repetitive hand use, including manually folding burritos and rapidly placing frozen burritos into boxes. After experiencing hand pain, she was diagnosed with bilateral carpal tunnel syndrome and later bilateral digital osteoarthritis. She underwent carpal tunnel release surgery on each hand.

Moore’s treating physician imposed restrictions against repetitive use of either hand and lifting more than ten pounds. Although Ajinomoto’s vocational expert identified potential light-duty jobs, Moore submitted sixty-six applications and received only one response. The Mississippi Workers’ Compensation Commission found that Moore had sustained a total occupational loss of both hands, that her osteoarthritis was aggravated or accelerated by her work, and that she was entitled to permanent total disability benefits.

The Court’s Holding

The Court of Appeals affirmed. It held that substantial evidence supported application of the rebuttable presumption of total occupational loss recognized for scheduled-member injuries. Moore established that her restrictions prevented her from returning to her Ajinomoto position and from performing the substantial acts of her usual employment, which had consisted almost entirely of production-line, restaurant-service, and other physically demanding work.

Because Moore proved through other evidence that she could not perform the substantial acts of her usual employment, she was not also required to establish a reasonable job search. The employer did not rebut the presumption by showing a realistic opportunity for Moore to obtain and sustain employment consistent with her restrictions, qualifications, and experience.

The court also upheld the finding that Moore’s bilateral hand osteoarthritis was compensable. The Commission permissibly credited her treating physician’s opinion that her work aggravated or accelerated the condition over the contrary expert evidence, and the record supplied substantial evidence of a causal connection. The employer’s reliance on a reference to elbow arthritis after heavy gardening did not address the bilateral digital osteoarthritis that the Commission found compensable.

Key Takeaways

  • A claimant may invoke the presumption of total occupational loss by proving either an unsuccessful reasonable effort to find usual employment or an inability to perform the substantial acts of that employment.
  • Once substantial evidence establishes inability to perform the substantial acts of usual employment, the claimant need not separately prove that a job search was reasonable.
  • Appellate courts defer to the Commission’s factual findings and credibility determinations when supported by substantial evidence, including its choice between competing medical opinions.

Why It Matters

The decision reinforces that Mississippi’s scheduled-member analysis is not limited to the claimant’s anatomical impairment rating or the diligence of a post-injury job search. A worker’s restrictions, employment history, education, skills, and realistic ability to resume usual work may support a finding of total occupational loss.

It also illustrates the deference given to the Commission when medical experts disagree about causation. A treating physician’s longitudinal experience with the claimant may support a finding that work aggravated or accelerated an underlying condition even without proof of causation to absolute medical certainty.

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