Knee conditions, including patellofemoral syndrome (PFS), are common among veterans due to the physical demands of military service.
The Department of Veterans Affairs (VA) evaluates knee conditions under its disability rating system to determine compensation for those impacted. If you’re a veteran dealing with knee PFS, understanding how the VA disability rating is calculated for this condition can help you navigate the claims process effectively.
In this article, we’ll cover everything you need to know about the knee PFS VA disability rating, including how ratings are determined, common symptoms, and tips for filing a strong claim.
What Is Knee PFS?
Knee patellofemoral syndrome (PFS) refers to pain or discomfort in the front of the knee and around the patella (kneecap). It is often referred to as “runner’s knee” and can be caused by repetitive stress, trauma, or improper alignment of the patella. Veterans commonly develop knee PFS due to the rigorous physical activities required during service, such as running, jumping, and prolonged standing.
Symptoms of knee PFS may include:
- Pain during activities like walking, climbing stairs, or squatting.
- A grinding or clicking sensation in the knee.
- Stiffness after sitting for extended periods.
How Does the VA Rate Knee PFS?
The knee PFS VA disability rating is determined by the severity of the condition and how it impacts a veteran’s ability to function. The VA uses the VA Schedule for Rating Disabilities (VASRD) to assign percentages to various conditions based on their level of disability.
Key Factors in Rating Knee PFS
- Range of Motion (ROM):
- The VA evaluates the knee’s ability to move through its full range of motion.
- Reduced ROM due to pain, swelling, or stiffness can result in higher ratings.
- Instability:
- If the knee demonstrates instability, such as giving way or locking, the VA may assign a separate rating.
- Pain and Functional Loss:
- Pain that limits daily activities or the ability to work is considered in the rating.
- The VA looks at how the condition affects the veteran’s quality of life and earning capacity.
- Ankylosis:
- Severe cases involving joint immobility may be rated under ankylosis (frozen joint).
Common VA Ratings for Knee PFS
- 10% Rating: Mild pain or slight limitations in range of motion.
- 20% Rating: Moderate impairment with reduced function or mobility.
- 30% Rating or Higher: Severe cases with significant functional loss, instability, or ankylosis.
AI Powered Chatbot for VA Disability Claims
Learn more about the VA Disability process and get help with our VA Disability Claim Chatbot programmed and trained by AI

Filing a VA Disability Claim for Knee PFS
Filing a VA claim for knee PFS requires detailed documentation to prove both the diagnosis and its connection to your military service. Follow these steps to improve your chances of receiving the appropriate knee PFS VA disability rating:
Step 1: Gather Medical Evidence
- Obtain records that document your diagnosis of knee PFS, including medical reports, imaging (X-rays or MRIs), and treatment notes.
- Highlight any limitations, such as difficulty walking or performing work-related tasks.
Step 2: Provide Service Connection Evidence
- Establish a link between your knee PFS and your time in service. Evidence can include:
- Service treatment records showing knee injuries or symptoms during service.
- Statements from colleagues or supervisors who witnessed your knee issues.
Step 3: Attend the VA Compensation & Pension (C&P) Exam
- The VA will schedule a C&P exam to assess the severity of your knee PFS.
- Be honest about your pain and limitations, as this evaluation is critical to determining your rating.
Secondary Conditions Related to Knee PFS
Knee PFS can lead to secondary conditions that may also be eligible for compensation under the VA disability rating system. These conditions include:
- Osteoarthritis:
- Chronic knee pain and damage can result in arthritis, which may warrant a separate rating.
- Back or Hip Pain:
- Altered gait from knee PFS can place extra stress on other joints, leading to compensatory injuries.
- Depression or Anxiety:
- Chronic pain and reduced mobility can impact mental health, potentially qualifying as a secondary condition.
Veterans experiencing these secondary conditions should include them in their claims to maximize their compensation.

Tips for Maximizing Your Knee PFS VA Disability Rating
Be Thorough in Documentation
- Include all relevant medical records, service treatment records, and lay statements in your claim.
- If your knee PFS worsens over time, submit updated evidence to request an increased rating.
Request Assistance from a VSO
- A Veteran Service Officer (VSO) can help you navigate the claims process, ensuring your application is complete and accurate.
File for Secondary Conditions
- Don’t overlook secondary conditions like arthritis or mental health issues, as they can significantly increase your overall disability rating.
Appealing a Low VA Rating for Knee PFS
If you believe your knee PFS VA disability rating is too low, you have the right to appeal. The VA offers several options for appeal:
- Request a Higher-Level Review:
- A senior claims reviewer will reevaluate your claim.
- A senior claims reviewer will reevaluate your claim.
- Submit a Supplemental Claim:
- Provide new evidence to support your case, such as updated medical records.
- Provide new evidence to support your case, such as updated medical records.
- File a Formal Appeal:
- Take your case to the Board of Veterans’ Appeals for a comprehensive review.
Appealing can be time-consuming, but with the right evidence and support, many veterans successfully secure higher ratings.
Examples of VA Ratings for Knee PFS
Case 1: Mild PFS Symptoms
A veteran with mild pain during physical activity and slight ROM reduction received a 10% knee PFS VA disability rating. They provided service treatment records showing knee injuries during training exercises.
Case 2: Severe PFS with Secondary Conditions
Another veteran experienced chronic pain, significant ROM limitations, and secondary osteoarthritis. They were awarded a 40% disability rating, including additional compensation for arthritis as a secondary condition.
Frequently Asked Questions About Knee PFS VA Disability Rating
How Is the Knee PFS VA Disability Rating Determined?
The VA evaluates knee PFS based on pain levels, range of motion, instability, and overall functional impact. The rating ranges from 0% to 100%, with higher ratings assigned to more severe conditions.
Can I Receive a Separate Rating for Instability?
Yes, if your knee instability significantly affects your mobility, the VA may grant a separate rating in addition to your primary knee PFS rating.
What Happens If My Condition Worsens Over Time?
You can file for an increased rating if your knee PFS symptoms worsen or if you develop related conditions like arthritis. Submit updated medical evidence and request a re-evaluation.