Regenerative Medicine for Knee Pain

Knee pain can turn everyday activities into challenges. Walking up the stairs, getting out of a chair, exercising, playing sports, or simply spending time on your feet may become uncomfortable when your knee isn’t functioning the way it should.

For some patients, conservative treatments are enough to manage symptoms. Others continue to experience pain despite modifying activities, completing rehabilitation, or trying other approaches. When knee pain persists, regenerative medicine may be one option worth exploring.

At Minnesota Regenerative Institute, regenerative treatments are used as part of an individualized approach to musculoskeletal care. The goal is to evaluate what’s contributing to your knee pain and determine whether treatments such as platelet-rich plasma (PRP) or other orthobiologic therapies may be appropriate for your condition.

Why Is Knee Pain So Common?

The knee is one of the body’s major weight-bearing joints.

Every day, it helps you walk, bend, squat, climb stairs, stand, and participate in countless activities. The knee also relies on several structures working together, including:

• Bones
• Cartilage
• Ligaments
• Tendons
• Muscles
• Menisci
• Other connective tissues

An injury, repetitive stress, age-related changes, or problems involving any of these structures can contribute to pain.

Because there are so many possible causes, determining what’s actually causing your symptoms is an important first step.

What Causes Knee Pain?

Knee pain can develop suddenly after an injury or gradually over time.

Common causes may include:

• Osteoarthritis
• Meniscus injuries
• Tendon problems
• Ligament injuries
• Sports injuries
• Overuse
• Previous knee injuries
• Degenerative changes
• Muscle weakness or imbalance
• Changes in joint mechanics

Pain can also come from structures outside the knee.

An accurate evaluation helps determine which tissues may be involved and whether regenerative medicine should be considered.

What Is Regenerative Medicine?

Regenerative medicine is a broad area of healthcare focused on supporting the body’s natural biological processes involved in tissue repair and healing.

Within musculoskeletal medicine, certain treatments use substances derived from a patient’s own body.

These may include platelet-rich plasma and other orthobiologic preparations.

Rather than simply focusing on temporarily masking symptoms, regenerative approaches may be considered as part of a broader treatment plan designed around the underlying musculoskeletal problem.

However, regenerative medicine isn’t a guaranteed way to regrow damaged tissue or eliminate knee pain. Outcomes vary based on the condition being treated and individual patient factors.

How Is Regenerative Medicine Used for Knee Pain?

Regenerative treatments may be considered for certain musculoskeletal conditions affecting the knee.

The specific treatment depends on factors such as:

• Cause of the pain
• Tissue involved
• Severity of the condition
• Previous treatments
• Age and activity level
• Overall health
• Treatment goals

An appropriate evaluation is important because not every type of knee pain will respond to the same treatment.

What Is PRP Therapy?

Platelet-rich plasma, commonly called PRP, is one of the better-known orthobiologic treatments.

PRP is prepared from a small sample of the patient’s own blood.

The blood is processed to create a concentrated preparation containing platelets and other components. Platelets contain signaling proteins and growth factors involved in the body’s normal healing processes.

The PRP preparation can then be injected into a targeted area.

How Might PRP Help Knee Pain?

PRP has been studied for several musculoskeletal conditions, including certain forms of knee osteoarthritis and tendon-related problems.

The goal of treatment is to deliver a concentrated platelet preparation to the targeted area, where its biological components may influence healing and inflammatory processes.

Some patients may experience improvements in pain and function following PRP treatment.

However, PRP doesn’t guarantee that damaged cartilage will completely regenerate, and results vary.

Understanding realistic treatment goals is an important part of deciding whether PRP is appropriate.

PRP for Knee Osteoarthritis

Osteoarthritis is one of the most common causes of chronic knee pain.

It occurs when changes develop within the joint over time, including changes involving cartilage and other tissues.

Symptoms may include:

• Knee pain
• Stiffness
• Reduced range of motion
• Swelling
• Grinding or creaking sensations
• Pain after activity
• Difficulty with stairs
• Discomfort after prolonged sitting

PRP may be considered for some patients with symptomatic knee osteoarthritis.

The goal is generally to improve symptoms and function rather than promise complete reversal of arthritis.

What Is BMAC?

Bone Marrow Aspirate Concentrate, or BMAC, is another orthobiologic treatment that may be used for certain musculoskeletal conditions.

BMAC is created using bone marrow collected from the patient’s own body, commonly from the pelvis.

The aspirate is processed into a concentrated preparation containing a mixture of components that may include:

• Platelets
• Growth factors
• Signaling proteins
• White blood cells
• A small population of progenitor or stromal cells

BMAC is sometimes casually referred to as “stem cell therapy,” but that term can oversimplify what’s actually contained in the preparation.

It should also not be viewed as a guaranteed method for regrowing cartilage or restoring a joint to its original condition.

PRP vs. BMAC for Knee Pain

PRP and BMAC are both autologous treatments, meaning the biological material comes from the patient’s own body.

However, they’re prepared differently and contain different components.

PRP is derived from blood, while BMAC is derived from bone marrow.

The appropriate option depends on the diagnosis, severity of the condition, available evidence, previous treatments, and individual goals.

One isn’t automatically “better” than the other for every patient.

A musculoskeletal evaluation can help determine whether either treatment should be considered.

What About Knee Tendon Injuries?

Not all knee pain comes from arthritis.

Tendons surrounding the knee can also become irritated or injured.

For example, patellar tendon problems may cause pain around the front of the knee, particularly in athletes or people who participate in repetitive jumping or running activities.

PRP has been studied for certain chronic tendon conditions, although treatment recommendations vary based on the specific injury.

Regenerative treatment should generally be paired with an appropriate rehabilitation plan rather than used as a substitute for restoring strength and function.

Can Regenerative Medicine Help a Meniscus Injury?

The menisci are pieces of fibrocartilage that help distribute forces within the knee.

Meniscus injuries can occur suddenly during twisting movements or develop gradually as tissue changes over time.

Whether an orthobiologic treatment is appropriate depends on factors such as:

• Type of tear
• Location
• Symptoms
• Age
• Activity level
• Other changes within the knee

Some meniscus injuries respond well to conservative care, while others may require orthopedic evaluation.

A regenerative injection shouldn’t automatically be assumed to be appropriate for every meniscus tear.

Can Regenerative Medicine Prevent Knee Surgery?

One common reason patients explore regenerative medicine is the desire to avoid or delay surgery.

For some patients, non-surgical treatments may provide enough symptom improvement to continue everyday activities without immediate surgery.

However, regenerative medicine can’t guarantee that surgery will never be necessary.

Severe structural damage, significant instability, advanced joint degeneration, or certain injuries may still require surgical evaluation.

The goal should be to choose the treatment that makes sense for your condition—not simply avoid surgery at all costs.

What Happens During a Regenerative Medicine Evaluation?

Before recommending treatment, it’s important to understand why your knee hurts.

An evaluation may include:

• Discussion of your symptoms
• Medical history
• Previous injuries
• Previous treatments
• Physical examination
• Range-of-motion testing
• Evaluation of knee stability
• Review of imaging when available
• Discussion of activity goals

Additional imaging may sometimes be recommended.

The information gathered during the evaluation helps determine whether regenerative medicine fits into your treatment plan.

What Happens During PRP Treatment?

If PRP is recommended, treatment typically begins by drawing a small amount of blood.

The blood is placed into a centrifuge or other processing system to separate and concentrate the desired components.

The PRP is then prepared for injection into the targeted area.

Depending on the condition and treatment approach, imaging guidance may be used to help accurately place the injection.

The entire process can typically be performed without major surgery.

What Is Recovery Like After a Regenerative Injection?

Recovery varies depending on the treatment performed and the condition being treated.

Some patients experience temporary soreness or increased discomfort after an injection.

Your provider may recommend temporarily modifying certain activities before gradually returning to exercise or rehabilitation.

It’s important to follow your individualized aftercare instructions.

Regenerative treatment is not necessarily an instant pain-relief procedure. Biological processes take time, and improvements—when they occur—may develop gradually.

How Long Does It Take to Notice Results?

There isn’t one timeline that applies to everyone.

Some patients may begin noticing changes within several weeks, while others may take longer.

Results can depend on:

• Diagnosis
• Severity of tissue changes
• Treatment used
• Overall health
• Activity level
• Rehabilitation
• Individual healing response

Your provider can explain what timeline may be reasonable for your particular condition.

Is Regenerative Medicine the Same as a Steroid Injection?

No.

Corticosteroid injections and orthobiologic treatments such as PRP work differently.

Steroid injections are commonly used to reduce inflammation and may provide temporary symptom relief for certain conditions.

PRP uses concentrated components from the patient’s own blood with the goal of influencing biological processes involved in healing and tissue response.

Both approaches may have appropriate uses.

Which treatment makes sense depends on the diagnosis, symptoms, health history, and treatment goals.

The Importance of Rehabilitation

An injection alone may not address every factor contributing to knee pain.

Muscle strength, mobility, movement patterns, and joint mechanics can all influence how the knee functions.

A comprehensive treatment plan may incorporate:

• Strengthening exercises
• Mobility work
• Activity modification
• Movement retraining
• Chiropractic or other conservative musculoskeletal care
• Gradual return to activity

Regenerative treatment may be one component of a broader plan rather than a stand-alone solution.

Can Chiropractic Care Be Part of Knee Pain Treatment?

Knee pain may sometimes be influenced by movement and mechanics involving the hips, pelvis, ankles, or other areas.

Depending on the individual, conservative musculoskeletal care may be used alongside exercise and rehabilitation to address mobility and function.

This doesn’t mean every case of knee pain is caused by spinal or joint “misalignment.”

Instead, the goal is to look at how the body is moving and identify modifiable factors that may contribute to symptoms or function.

What Can You Do at Home for Knee Health?

Your provider may recommend specific exercises based on your diagnosis, but general habits can also support knee health.

These may include:

• Staying physically active within comfortable limits
• Building strength around the hips and knees
• Gradually increasing exercise intensity
• Wearing appropriate footwear
• Avoiding sudden increases in training volume
• Taking breaks from activities that consistently aggravate symptoms
• Maintaining a healthy body weight when appropriate
• Following a structured rehabilitation program

Complete inactivity isn’t always the answer to knee pain. Appropriate movement can be an important part of recovery.

Who May Be a Candidate for Regenerative Knee Treatment?

Regenerative medicine may be considered for patients experiencing certain chronic or injury-related knee problems who are interested in exploring non-surgical treatment options.

Your provider will consider factors such as:

• Your diagnosis
• Severity of the condition
• Overall health
• Medications
• Previous treatment
• Activity goals
• Imaging findings
• Expectations

Not everyone is an appropriate candidate.

A consultation is the best way to determine whether PRP, BMAC, or another treatment is best.

When Does Knee Pain Need Medical Attention?

Knee pain deserves prompt evaluation if you experience:

• Significant swelling
• Inability to bear weight
• A knee that repeatedly gives way
• A locked knee
• Major loss of motion
• Obvious deformity
• Severe pain after an injury
• Redness, warmth, and fever

Explore Regenerative Medicine for Knee Pain at Minnesota Regenerative Institute

Knee pain doesn’t have one cause, which means it shouldn’t have one automatic treatment.

Regenerative medicine offers additional options for certain patients dealing with osteoarthritis, tendon problems, and other musculoskeletal conditions. Treatments such as PRP and BMAC use biological material from the patient’s own body.

At Minnesota Regenerative Institute, we take an individualized approach to knee pain. We’ll evaluate your symptoms, movement, health history, and treatment goals to determine which conservative or regenerative options may be appropriate.

If knee pain is keeping you from doing the things you enjoy, contact Minnesota Regenerative Institute to schedule an evaluation and learn more about your non-surgical treatment options.