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Free Viability Check →The compensation and pension (C&P) exam is often the single most important event in a veteran's knee claim. A well-prepared veteran who understands what the examiner will assess, and how to accurately report symptoms, is far more likely to receive a rating that reflects the true severity of the disability.
The examiner's job is not to treat you. Their role is to document the current severity of your condition and render an opinion on whether it is related to your military service. Those are two separate functions, and the exam addresses both.
For a veteran whose service connection is already established, the exam focuses almost entirely on severity. For a veteran whose claim is pending a nexus determination, the examiner also writes a medical opinion on causation.
This is the core of most knee exams. The examiner uses a goniometer (a hinged angle-measuring device) to record:
These measurements map directly to the VA rating schedule under DC 5260 (flexion) and DC 5261 (extension). See our guide on knee VA rating criteria for the specific degree thresholds.
The examiner is required under 38 CFR 4.59 to document painful motion throughout the range of motion arc, not just the maximum angle you can achieve. This matters because pain that limits functional range of motion can support a higher rating even if the measured range appears adequate.
Ligamentous stability is evaluated through specific maneuvers:
Documented instability supports a rating under DC 5257, which ranges from 10% to 30% based on severity. If the examiner skips stability testing and your primary complaint includes instability or giving way, that's a significant gap in the exam.
McMurray's test, Thessaly's test, and the Apley grind test assess for meniscus pathology. Positive findings on these tests, combined with imaging confirming a tear, support a rating under DC 5258.
The examiner also documents:
When service connection has not been established, the examiner is asked to provide a nexus opinion. This opinion answers whether the current condition is at least as likely as not related to an in-service event, injury, or disease.
The quality of this opinion varies enormously. Some examiners write thoughtful opinions that engage with the veteran's service history and the relevant medical literature. Others write brief, conclusory opinions that simply state "less likely than not" without adequate rationale.
A legally inadequate nexus opinion is a basis for appeal under Nieves-Rodriguez v. Peake (22 Vet App 295, 2008), which established that VA medical opinions must contain supporting rationale to be given probative weight.
To recognize whether the nexus opinion in your own exam report is adequate, compare it against these examples.
Inadequate nexus rationale: "The veteran's knee condition is less likely than not related to military service. The veteran's MOS does not document knee injuries."
This is deficient: it reaches a conclusion without explaining the medical reasoning and fails to address cumulative stress mechanisms or the veteran's occupational history.
Adequate nexus rationale: "Review of the veteran's service treatment records and personnel records reveals an infantry MOS with 12 years of active service, including documented rucking activities and field training exercises. The veteran's current diagnosis of knee osteoarthritis, confirmed by X-ray showing medial compartment narrowing and osteophyte formation, is consistent with accelerated degenerative changes caused by sustained compressive loading. It is my opinion that the current condition is at least as likely as not related to the veteran's military occupational demands."
If the nexus section in your exam report is closer to the first example, that opinion is challengeable.
Veterans should be alert to these deficiencies:
If any of these apply to your exam, the resulting rating decision may be challengeable.
Preparation is straightforward and doesn't require gaming the system. It requires accurate reporting.
For secondary knee conditions like knee pain from a service-connected back condition, the exam addresses the secondary relationship as well.
Flat Rate Nexus offers a free C&P exam preparation resource at flatratenexus.com/cp-exam-prep.html, along with physician-signed independent medical opinions and a nexus letter grader. These tools are designed to help veterans walk into the exam prepared.
Thinking about your own claim? Every nexus letter we write goes through a full physician record review, cites peer-reviewed research, and is built around the actual evidence in your case.
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