Home / Conditions / Osteoarthritis Of Both Knees

Osteoarthritis Of Both Knees: when insurers say no, reviewers often say yes

In 14 published external-review decisions involving osteoarthritis of both knees, independent physician reviewers overturned the insurer’s denial 92.9% of the time.

Published decisions
14
2001–2026
Overturned
92.9%
13 denials reversed

Most-fought treatments for osteoarthritis of both knees

What insurers denied — and how those fights ended.
CategoryDecisionsOverturned
Euflexxa Injection3
100%
Orthovisc Injections3
100%
Typical time to a decision
4 days
Most land between 3 and 15 days
Handled as urgent
50%
Expedited when a delay would cause harm
What the reviewers wrote
Excerpts from the independent reviewers’ published findings — the actual reasoning, quoted, not summarised.

Where the denial was overturned

Findings: The physician reviewer found that Nature of Statutory Criteria/Case Summary: The patient has requested authorization and coverage for Orthovisc injections in both knees. Evidence from systematic reviews and randomized controlled trials indicate that although viscosupplementation may relieve knee pain in some patients with osteoarthritis, data has not established which patients will benefit. Several studies have tried mixing hyaluronic acid with corticosteroids, platelet-rich plasma, and other agents, to increase its effectiveness. Current medical guidelines indicate that the data on the safety and efficacy of viscosupplementation remain inconclusive. As such, the AAOS does not currently recommend viscosupplementation as routine treatment for osteoarthritis of the knees.
Medical Necessity · 2024 · IMR MN24-42250
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for bilateral Euflexxa injections, one a week for 3 weeks. The Health Plan has denied this request indicating that the requested treatment is not medically necessary for treatment of the enrollee’s osteoarthritis. A review of the records indicates that the enrollee is diagnosed with primary osteoarthritis of both knees, and is status post bilateral arthroscopic partial lateral Meniscectomy. Progress notes indicated the enrollee had presented with bilateral knee pain, and is unable to perform activities of daily living comfortably now due to her condition. The enrollee reported that past lubricant injections had provided pain relief lasting 6 months. The provider recommended bilateral knee Euflexxa injections, weekly, for 3 weeks.
Medical Necessity · 2018 · IMR MN18-29648

Where the denial was upheld

Worth reading too — these show what an appeal has to overcome.
Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for enrollment into the bariatric Options Program. The Health Plan has denied this request indicating that the requested service is not medically necessary for treatment of the enrollee’s morbid obesity and osteoarthritis of both knees. At issue in this case is whether the requested enrollment into a bariatric Options Program is medically necessary for treatment of the enrollee’s medical condition.Findings: The physician reviewer found that in order to justify participation in a bariatric program in general, one must show that they are consistently working and successfully implementing long-term dietary changes conducive to weight loss. Post-bariatric program and surgery results strongly depend on these habits.
Medical Necessity · 2019 · IMR MN19-30012

Figures and quotations on this page come from 42,749 published decisions in the California DMHC Independent Medical Review dataset. These are California outcomes — every state runs an equivalent external review, but the rates here are California’s. Excerpts are quoted verbatim from the public record and describe this condition generally, not any individual case.

How to use this in your appeal

These outcomes come from California’s external review program — an independent physician panel whose decision binds the insurer. Every state has an equivalent, and internal appeals succeed even more often. If your care for osteoarthritis of both knees was denied, the published record says the denial is worth fighting.

SOURCE: CALIFORNIA DMHC INDEPENDENT MEDICAL REVIEW OUTCOMES (CHHS OPEN DATA) · DERIVED AGGREGATE STATISTICS ONLY · METHODOLOGY

Not legal or medical advice. Coverage Rights is a self-help tool that helps you prepare your own appeal. For advice about your specific situation, talk to a licensed attorney or your doctor.

Fighting a denial for osteoarthritis of both knees? 92.9% won.

Explain my denial — freeStart my appeal · $39