Stem Cells for Shoulder Tears: What Patients Should Know

Quick Answer: Can Stem Cells Help a Shoulder Tear?

Mesenchymal stromal cells, or MSCs, and other orthobiologic treatments are being studied for several musculoskeletal conditions.

However, the evidence varies considerably depending on the type of shoulder injury.

Research involving biologic treatment is more developed for rotator cuff disease and tendinopathy than for injuries such as shoulder labral tears.

Direct human evidence specifically supporting stem-cell injections for a torn shoulder labrum remains very limited.

That means a shoulder MRI showing a “tear” does not automatically make someone a candidate for stem-cell treatment.

Candidacy depends on factors including:

What structure is torn
Partial vs complete tear
Acute vs chronic injury
Shoulder stability
Pain and functional limitations
Age and activity level
Previous treatment
Imaging findings
Whether surgery is medically indicated

What Does “Shoulder Tear” Actually Mean?

The shoulder contains several structures that can tear.

Rotator Cuff Tear

The rotator cuff is a group of tendons that help stabilize and move the shoulder.

Tears can be:

Partial thickness
Full thickness
Small
Large or massive
Acute
Degenerative

We have a separate article dedicated specifically to stem cells for rotator cuff tears, because the evidence and treatment considerations are substantial enough to deserve their own discussion.

AAOS updated its clinical practice guideline for adult rotator cuff injuries in August 2025. Treatment depends on the type and severity of the tear, symptoms, function, and individual patient characteristics. (AAOS)

Labral Tear

The labrum is a ring of fibrocartilage surrounding the shoulder socket.

It contributes to stability and helps anchor several structures.

Common labral injuries include:

SLAP tears
Anterior labral tears
Posterior labral tears
Tears associated with shoulder dislocation or instability

A torn labrum is different from a torn rotator cuff tendon.

That means research involving one should not automatically be used as evidence for the other.

Biceps Tendon Injury

The long head of the biceps attaches near the superior labrum.

That is why biceps and labral problems can sometimes occur together.

Depending on the injury, treatment might involve rehabilitation, injections, or surgical procedures involving the biceps or labrum.

Articular Cartilage Damage

The shoulder joint also contains articular cartilage covering the surfaces of the humerus and glenoid.

Cartilage injury may occur because of:

Trauma
Instability
Repeated dislocations
Osteoarthritis
Other degenerative processes

Again, this represents a different problem from a tendon or labral tear.

Stem Cells for Shoulder Labral Tears

This is where the evidence needs to be presented carefully.

There is scientific interest in using MSCs and tissue-engineering approaches to support fibrocartilage repair.

But direct clinical evidence for injecting stem cells into patients specifically to treat a torn shoulder labrum is currently very limited.

For example, a 2026 study described the development of a patient-specific, 3D cryobioprinted glenoid-labrum scaffold incorporating human mesenchymal stem cells.

That is interesting regenerative research.

But it was a tissue-engineering study, not a clinical trial demonstrating that stem-cell injections repair labral tears in patients. The authors described it as groundwork for future translational research. (PubMed)

That distinction matters.

A promising laboratory strategy should not be marketed as though it already represents a proven treatment.

What If My Labral Tear Is Causing Instability?

This may significantly change the treatment conversation.

A shoulder that repeatedly:

Dislocates
Subluxates
Gives way
Feels mechanically unstable

has a structural problem that may not be addressed by an injection alone.

AAOS educational guidance treats shoulder instability and SLAP/labral pathology as distinct orthopedic problems requiring diagnosis and appropriate management. (AAOS)

In those cases, an orthopedic surgical opinion may be particularly important.

What About Rotator Cuff Tears?

There is considerably more orthobiologic research involving the rotator cuff.

Studies have examined treatments including:

PRP
Bone-marrow-derived products
MSCs
Biologic augmentation during surgical repair

But even here, the evidence does not support treating every rotator cuff tear the same way.

For example, a 2024 review of randomized trials evaluating PRP in partial-thickness rotator cuff tears found some improvements in pain but substantial differences between studies and less consistent long-term functional improvement. (PubMed)

AAOS currently maintains a dedicated evidence-based guideline for rotator cuff injuries. (AAOS)

Read our full guide: Stem Cells for Rotator Cuff Tears: What Patients Should Know.

Partial Tear vs Complete Tear

This is one of the most important distinctions.

Partial Tear

Some fibers remain intact.

Depending on the structure and severity, treatment may include:

Activity modification
Physical therapy
Strengthening
Medication
Injection-based treatment
Regenerative approaches
Surgery in selected cases

Complete Tear

The tissue has been fully disrupted.

That does not automatically mean every complete tear needs surgery.

But it does mean the mechanical function of the structure becomes especially important.

A regenerative injection should not be assumed to:

reconnect two completely separated pieces of tissue

restore mechanical stability to an unstable joint.

That is why imaging and physical examination matter.

Acute Shoulder Tear vs Chronic Shoulder Pain

Another important distinction is when the injury occurred.

Someone who suddenly injured a shoulder yesterday and cannot lift the arm may need a very different evaluation from someone who has had an aching shoulder for three years.

An acute injury may require evaluation for:

Complete tendon rupture
Dislocation
Fracture
Significant labral injury
Other traumatic damage

Regenerative treatment should not delay appropriate diagnosis or orthopedic management.

Chronic symptoms, on the other hand, may involve:

Tendinopathy
Degenerative partial tears
Osteoarthritis
Old injuries
Multiple overlapping problems

Those may create a different conversation about nonsurgical options.

Can Stem Cells Regrow a Torn Shoulder?

This claim needs caution.

It is not currently appropriate to promise that a stem-cell injection will:

Regrow a completely torn labrum
Reattach a ruptured tendon
Restore normal cartilage
Reconstruct an unstable shoulder
Eliminate the need for surgery

Research into MSCs examines several possible effects, including signaling related to inflammation and tissue repair.

But improvement in pain or function is not the same thing as proving that a torn structure completely regenerated.

Those outcomes should be discussed separately.

When Might Someone Consider a Regenerative Evaluation?

A patient may reasonably discuss regenerative treatment when they have:

Persistent shoulder pain
A chronic partial tendon injury
Degenerative shoulder changes
Symptoms that have not improved enough with conservative care
A desire to understand nonsurgical options
Imaging available for review

That does not mean treatment will automatically be recommended.

A good consultation may ultimately conclude:

regenerative treatment is reasonable to consider

physical therapy should be tried first

an orthopedic surgical evaluation makes more sense.

When Might Surgery Be More Appropriate?

Surgical evaluation may become particularly important when there is:

Significant mechanical instability
Recurrent dislocation
A complete traumatic tendon tear
Severe weakness or loss of function
A major displaced structural injury
Advanced joint destruction
Failure of appropriate nonsurgical treatment

The existence of regenerative options does not make surgery inherently wrong.

Likewise, the existence of a surgical option does not mean every patient needs to proceed immediately.

The appropriate treatment depends on the individual injury.

What Happens During a Shoulder Regenerative Consultation?

At The Re/ Clinic in Sandy, Utah, the goal of the consultation is to understand what is causing the shoulder symptoms before deciding whether regenerative treatment is appropriate.

That may include reviewing:

Your MRI or Imaging

The provider needs to know which structure is actually damaged.

How the Injury Happened

Was there a fall, sports injury, dislocation, repetitive use, or gradual onset?

Your Symptoms

Does the shoulder:

Hurt?
Catch?
Click?
Give out?
Feel weak?
Lose range of motion?

Previous Treatment

Have you tried:

Physical therapy?
Rest?
Strengthening?
Other injections?
Orthopedic evaluation?

Your Goals

The treatment discussion may differ considerably between someone who wants to return to competitive athletics and someone trying to sleep comfortably and perform normal daily activities.

Frequently Asked Questions

Can stem cells help a shoulder tear?

Possibly in selected musculoskeletal conditions, but evidence varies significantly depending on the structure involved.

There is more biologic research involving rotator cuff disease than shoulder labral tears.

Can stem cells heal a torn shoulder labrum?

Direct human clinical evidence demonstrating that stem-cell injections repair shoulder labral tears is currently very limited.

A 2026 study involving MSCs and glenoid-labrum bioprinting represents early tissue-engineering research rather than clinical proof of an injectable treatment. (PubMed)

Can stem cells help a rotator cuff tear?

Cell-based and other orthobiologic therapies have been studied for rotator cuff disease, but evidence varies by product, tear type, and treatment approach.

See our dedicated Stem Cells for Rotator Cuff Tears article for the full evidence review.

Can a complete shoulder tear heal without surgery?

It depends on which structure is torn, tear size, symptoms, stability, age, activity level, and functional goals.

A complete tear does not automatically mean surgery, but significant traumatic or mechanically unstable injuries deserve orthopedic evaluation.

Can regenerative treatment replace shoulder surgery?

Not in every case.

An injection cannot automatically restore mechanical stability or reconstruct a completely disrupted structure.

For some patients, surgery may remain the more appropriate option.

Do I need an MRI before considering treatment?

Imaging can be extremely helpful when a structural shoulder tear is suspected.

The provider needs to understand what is actually damaged before recommending an intervention.

Are stem cells FDA-approved for shoulder tears?

No stem-cell product is currently FDA-approved specifically for shoulder tears or shoulder pain.

FDA continues to identify orthopedic uses of regenerative medicine products, including shoulder pain, as unapproved indications. (U.S. Food and Drug Administration)

A Shoulder Tear Is a Diagnosis, Not One Treatment

The most important takeaway is simple:

Not every shoulder tear is the same.

A partial degenerative rotator cuff tear is different from a traumatic complete tendon rupture.

A SLAP tear is different from shoulder arthritis.

A chronically painful but stable shoulder is different from one that repeatedly dislocates.

So before asking:

“Can stem cells fix my shoulder?”

start with:

“What exactly is torn?”

At The Re/ Clinic in Sandy, Utah, we review symptoms, history, imaging, and treatment goals to determine whether regenerative treatment may be appropriate or whether another treatment pathway should be considered. The clinic currently offers regenerative medicine services using umbilical cord-derived products. (The Re/ Clinic)

Schedule a regenerative medicine consultation to have your shoulder injury reviewed.

Call: 385-240-1000
Location: 9035 S 700 E, Sandy, UT 84070 (The Re/ Clinic)

References

American Academy of Orthopaedic Surgeons. Clinical Practice Guideline on the Management of Rotator Cuff Injuries. Updated August 18, 2025. (AAOS)
American Academy of Orthopaedic Surgeons. Shoulder and Elbow Resident Curriculum. Includes shoulder instability, SLAP tears, biceps lesions, rotator cuff disease, and shoulder arthritis as distinct orthopedic conditions. (AAOS)
da Silva et al. Patient-specific 3D cryo(bio)printing of a glenoid labrum scaffold for fibrocartilaginous tissue engineering. 2026. Early laboratory work involving human MSCs and glenoid-labrum tissue engineering, not a clinical injection trial. (PubMed)
Effectiveness of platelet-rich plasma in partial-thickness rotator cuff tears: a systematic review. 2024. Review of randomized trials demonstrating mixed results and substantial study heterogeneity. (PubMed)
U.S. Food and Drug Administration. Important Patient and Consumer Information About Regenerative Medicine Therapies. FDA states that regenerative medicine products are not approved for orthopedic indications including shoulder pain. (U.S. Food and Drug Administration)

Utah Stem Cell Therapy Notice

THIS NOTICE MUST BE PROVIDED TO YOU UNDER UTAH LAW.

This health care practitioner performs one or more stem cell therapies that have not yet been approved by the United States Food and Drug Administration.

You are encouraged to consult with your primary care provider before undergoing a stem cell therapy.