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Rotator Cuff Injuries
Dr. Michael Hoiles has created this guide as an educational resource for people experiencing shoulder pain or who have been diagnosed with a rotator cuff injury. It explains the role of the rotator cuff, the difference between tendinopathy and rotator cuff tears, common symptoms, treatment options, recovery expectations, and when it may be appropriate to seek an assessment.
Rotator cuff injuries are one of the most common causes of shoulder pain. They can develop gradually from repetitive use and age-related changes or occur suddenly after a fall, heavy lift, or other injury. Symptoms can range from mild discomfort with certain movements to significant pain, weakness, and difficulty using the arm.
This information is intended for general educational purposes and should not replace an individualized assessment or medical advice.
Quick Facts
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The rotator cuff is made up of four muscles and their tendons that help move and stabilize the shoulder.
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Rotator cuff problems include tendinopathy, strains, partial-thickness tears, and full-thickness tears.
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Pain is commonly felt around the outside or front of the shoulder and upper arm.
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Reaching overhead, lifting, reaching behind the back, and sleeping on the affected shoulder may aggravate symptoms.
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Structural changes seen on ultrasound or MRI do not always correlate directly with pain.
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Many rotator cuff problems can be managed conservatively with activity modification, progressive exercise, and appropriate treatment.
Anatomy of the Rotator Cuff
The shoulder is a highly mobile ball-and-socket joint formed primarily by the head of the humerus and the glenoid of the shoulder blade.
The rotator cuff consists of four muscles:
Supraspinatus – assists with raising the arm and contributes to shoulder stability.
Infraspinatus – primarily helps rotate the arm outward.
Teres Minor – assists with external rotation and stabilization of the shoulder.
Subscapularis – primarily rotates the arm inward and contributes to stability.
The tendons of these muscles surround the head of the humerus and work together to help keep the ball of the shoulder centred within the socket as the arm moves.
Because the shoulder allows such a large range of motion, coordinated function of the rotator cuff, shoulder blade muscles, joints, and surrounding tissues is important for comfortable movement.
What Is a Rotator Cuff Injury?
“Rotator cuff injury” is a broad term describing problems affecting one or more of the rotator cuff muscles or tendons.
These problems exist along a spectrum and may include:
Rotator Cuff Tendinopathy
Tendinopathy refers to changes within a rotator cuff tendon that may be associated with pain and reduced tolerance to load. It often develops gradually and may be related to repetitive activity, sudden increases in training, occupational demands, or age-related tendon changes.
Rotator Cuff Strain
A strain can occur when a rotator cuff muscle or tendon is overloaded or injured. This may happen during lifting, sports, a sudden pulling movement, or another acute event.
Partial-Thickness Rotator Cuff Tear
A partial tear involves damage to part of the thickness of a rotator cuff tendon without completely disrupting the tendon.
Some partial tears are painful, while others may exist without causing significant symptoms.
Full-Thickness Rotator Cuff Tear
A full-thickness tear extends through the entire thickness of the tendon. These tears can occur after trauma or develop gradually as part of degenerative tendon changes.
Importantly, identifying a tear on imaging does not automatically mean surgery is required. Age, symptoms, strength, functional limitations, size and location of the tear, how the injury occurred, and the patient's goals all influence treatment decisions.
Tendinopathy vs. Rotator Cuff Tear: What's the Difference?
These terms can sound concerning when they appear on an ultrasound or MRI report, but they describe different types of tendon changes.
Tendinopathy generally describes changes within the tendon associated with reduced capacity to tolerate load. Symptoms commonly develop gradually and may fluctuate depending on activity.
A rotator cuff tear means some of the tendon fibres have been disrupted. Tears may be partial or full thickness and can develop from trauma or gradually over time.
Rotator cuff tendinopathy and tears can occur in any of the rotator cuff tendons, but most commonly affect the supraspinatus tendon as shown in the image above.
One important point is that imaging findings and symptoms do not always match perfectly. Rotator cuff tears and other structural changes become increasingly common with age and may be present in people who have little or no shoulder pain.
For this reason, imaging results should usually be interpreted alongside your symptoms, strength, function, physical examination, age, activity level, and how the injury occurred.
Common Causes & Risk Factors
Rotator cuff problems do not always have one identifiable cause. They may develop gradually or occur following a specific injury.
Common contributing factors include:
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Repetitive overhead activity
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Sudden increases in exercise or training volume
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Heavy or unfamiliar lifting
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Throwing and racquet sports
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Weight training
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Occupations involving repetitive shoulder use
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Falling onto the arm or shoulder
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Lifting or catching something unexpectedly
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Age-related tendon changes
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Previous shoulder injuries
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Reduced shoulder strength or conditioning
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Returning to demanding activity too quickly after time away
Rotator cuff changes also become more common with age, meaning an imaging finding does not necessarily identify the sole cause of someone's shoulder pain.
Common Symptoms
Symptoms vary depending on the tissue involved, severity of the injury, and activities being performed.
Common symptoms include:
Shoulder and Upper Arm Pain
Pain is often felt around the front or outside of the shoulder and may extend down the upper arm.
Pain With Lifting the Arm
Reaching overhead or lifting the arm away from the body may reproduce symptoms.
Pain With Reaching Behind the Back
Putting on a jacket, fastening a bra, reaching into a back pocket, or other movements behind the body may be uncomfortable.
Shoulder Weakness
The arm may feel weaker when lifting, reaching, carrying, or rotating the shoulder.
Significant weakness following an acute injury deserves further assessment.
Night Pain
Some people have difficulty sleeping on the affected shoulder or experience aching at night.
Pain During Exercise
Bench pressing, overhead pressing, push-ups, pull-ups, throwing, swimming, and other upper-body activities may become uncomfortable.
How Is a Rotator Cuff Injury Diagnosed?
Diagnosis typically begins with a detailed history and physical examination.
An assessment may include evaluating:
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How the symptoms started
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Location and behaviour of the pain
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Shoulder range of motion
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Rotator cuff strength
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Shoulder blade movement
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Neck movement
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Activities that reproduce symptoms
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Functional movements such as reaching and lifting
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Neurological function when appropriate
Several clinical tests may also be used to assess the rotator cuff and other structures around the shoulder.
No single orthopedic test perfectly identifies the source of shoulder pain, so findings are usually interpreted together rather than relying on one test alone.
Is Imaging Necessary?
Not always.
Many uncomplicated cases of shoulder pain can initially be managed without imaging.
Ultrasound or MRI may be considered when there has been significant trauma, substantial weakness, suspected full-thickness tearing, persistent symptoms despite appropriate conservative treatment, or when imaging would influence treatment decisions.
X-rays may also be useful when arthritis, fracture, calcification, or other bony conditions are suspected.
What Helps Rotator Cuff Injuries?
Treatment depends on the type and severity of the injury, but conservative management is often appropriate.
Activity Modification
Temporarily reducing or modifying activities that repeatedly aggravate the shoulder can allow symptoms to settle while maintaining as much normal activity as possible.
Progressive Exercise
Exercise is an important component of rehabilitation.
Treatment may gradually target:
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Rotator cuff strength
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Shoulder blade strength and control
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Shoulder range of motion
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Tolerance to lifting
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Overhead capacity
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Sport- or work-specific movements
Hands-On Treatment
Manual therapy may sometimes help reduce pain and improve shoulder or upper-back mobility, particularly when combined with an active rehabilitation program.
Medication
Over-the-counter or prescription medication may sometimes be appropriate for short-term symptom management. Medication decisions should be discussed with a physician or pharmacist when necessary.
Injections
Corticosteroid injections may occasionally be considered for persistent shoulder pain. They may provide short-term symptom relief for some people, but they do not replace rehabilitation and are not appropriate for everyone.
Surgery
Surgery is not required for every rotator cuff tear.
It may be considered for certain traumatic full-thickness tears, substantial functional loss, persistent symptoms despite appropriate conservative management, or when individual circumstances make surgical repair more appropriate.
How Chiropractic Care May Help
Chiropractic management of rotator cuff injuries should involve more than simply treating the painful area.
An assessment can help determine how the shoulder is moving, identify strength or mobility limitations, evaluate whether the neck or other structures may be contributing, and determine whether further investigation or referral is appropriate.
Depending on the individual, treatment may include:
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Shoulder and Upper-Back Mobility.
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Manual therapy or joint mobilization may be used when restricted movement is contributing to symptoms.
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Soft Tissue Treatment: Treatment of the rotator cuff, shoulder, chest, or surrounding muscles may help temporarily reduce discomfort and improve movement.
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Exercise Rehabilitation: Progressive strengthening is often one of the most important components of rotator cuff rehabilitation. Exercises can be progressed according to symptoms, strength, activity demands, and recovery.
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Activity and Training Modification Rather than simply telling someone to stop exercising, treatment can help determine what activities can be continued and how painful movements can temporarily be modified.
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Return to Activity: Later stages of rehabilitation should prepare the shoulder for the specific demands of work, weight training, golf, throwing, swimming, or other activities.
Recovery Timeline
Recovery varies considerably depending on the type of rotator cuff injury.
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Mild Rotator Cuff Irritation or Tendinopathy: Symptoms may begin improving within several weeks with appropriate activity modification and rehabilitation.
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Persistent Tendinopathy: Longer-standing tendon problems may require several months of progressive rehabilitation to restore strength and load tolerance.
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Partial-Thickness Tears: Many partial tears can be managed conservatively, but recovery may take several months depending on the size of the tear, symptoms, strength, and activity demands.
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Full-Thickness Tears: Recovery is more variable. Some full-thickness tears can be managed successfully without surgery, while others may require orthopedic assessment.
If surgery is performed, rehabilitation typically occurs over several months.
Recovery rarely follows a perfectly straight line. Temporary flare-ups can occur as activity and exercise levels increase.
Can I Still Exercise With a Rotator Cuff Injury?
In many cases, yes.
You usually do not need to stop exercising completely because of rotator cuff pain. Instead, exercises may need to be temporarily modified based on symptoms and the severity of the injury.
For example, you may temporarily need to:
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Reduce the weight being lifted
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Reduce training volume
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Modify painful ranges of motion
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Substitute uncomfortable exercises
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Avoid repeated high-load overhead movements
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Gradually rebuild tolerance before returning to heavier activity
Some discomfort during rehabilitation does not necessarily mean the shoulder is being damaged. However, exercise should generally remain manageable and symptoms should not progressively worsen after each session.
An acute injury associated with substantial weakness, inability to raise the arm, deformity, or severe pain should be assessed before attempting to train through it.
Exercises Commonly Recommended:
Exercises should be selected based on the individual injury and stage of recovery. Not everyone requires the same program.
Phase 1 – Reduce Irritability & Restore Comfortable Movement
Early exercises may include:
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Pendulum movements
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Assisted shoulder flexion
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Wall slides
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Gentle shoulder external rotation
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Rotator cuff isometric exercises
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Scapular retraction exercises
The goal is to maintain comfortable movement and begin loading the shoulder without repeatedly aggravating symptoms.
Phase 2 – Build Strength & Control
As symptoms improve, rehabilitation may progress to:
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Resistance-band external rotation
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Resistance-band internal rotation
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Side-lying external rotation
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Rows
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Scaption raises
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Serratus strengthening
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Progressive rotator cuff strengthening
The goal is to improve the capacity of the rotator cuff and shoulder blade muscles.
Phase 3 – Return to Full Activity
Later rehabilitation may include:
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Heavier resisted external rotation
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Progressive overhead pressing
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Push-up variations
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Loaded carries
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Pulling exercises
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Overhead stability exercises
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Sport- or occupation-specific movements
The final goal is not simply to eliminate pain—it is to restore enough strength and capacity for the activities you want to return to.
Common Mistakes That Slow Recovery
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Complete Rest for Too Long: Avoiding all shoulder movement can contribute to stiffness, weakness, and reduced capacity.
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Repeatedly Testing the Painful Movement: Constantly checking whether the shoulder still hurts by repeatedly performing the aggravating movement can keep symptoms irritated.
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Returning to Heavy Training Too Quickly: Feeling better does not necessarily mean the shoulder has regained its previous strength and capacity.
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Focusing Only on Passive Treatment: Massage, manual therapy, or other passive treatments may help symptoms, but progressive rehabilitation is usually important for restoring longer-term function.
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Becoming Alarmed by Imaging Findings: Terms such as degeneration, tendinosis, or tear can sound concerning. Imaging findings should be interpreted in the context of symptoms and function rather than viewed in isolation.
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Ignoring Significant Weakness: Sudden loss of strength following trauma can indicate a more substantial injury and should be assessed.
When Should I Seek an Assessment?
Consider having your shoulder assessed if:
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Pain is not improving after several weeks
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Symptoms repeatedly return
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Shoulder pain interferes with sleep
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You are losing range of motion
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The shoulder feels significantly weaker
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You cannot return to normal exercise or activities
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Pain began after a significant fall or injury
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You are unsure which activities are safe to continue
An assessment can help determine the likely source of the symptoms and establish an appropriate rehabilitation plan.
When Should I Worry?
Seek prompt medical assessment if you experience:
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Sudden inability to raise the arm after an injury
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Significant new weakness following trauma
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Obvious shoulder deformity
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Severe swelling or bruising after an injury
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Loss of sensation or significant neurological symptoms
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A hot, red, swollen shoulder accompanied by fever or feeling unwell
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Severe unexplained shoulder pain associated with chest pain, shortness of breath, sweating, dizziness, or other concerning symptoms
These symptoms do not necessarily indicate a serious condition, but they warrant appropriate medical evaluation.
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Could My Shoulder Pain Be Coming From Somewhere Else?
Yes. Pain around the shoulder does not always originate from the rotator cuff.
Other possible sources include:
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Cervical Spine: Problems involving the neck can refer pain into the shoulder and upper arm. Nerve irritation may also cause pain, numbness, tingling, or weakness extending into the arm.
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AC Joint: The acromioclavicular joint at the top of the shoulder can become painful following trauma or repetitive loading.
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Frozen Shoulder: Adhesive capsulitis typically causes progressive pain accompanied by substantial restriction in shoulder movement.
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Glenohumeral joint arthritis, instability, labral injuries, and other problems within the shoulder joint can produce symptoms similar to rotator cuff pain.
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Biceps Tendon: The long head of the biceps tendon can contribute to pain near the front of the shoulder.
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Referred Pain: Less commonly, shoulder pain can originate from conditions outside the musculoskeletal system. Symptoms that are unexplained, severe, or accompanied by other concerning symptoms should be medically assessed.
A thorough assessment helps determine which structures are most likely contributing rather than assuming every painful shoulder is a rotator cuff injury.
Frequently Asked Questions
Can a rotator cuff tear heal without surgery?
Many people with rotator cuff tears can improve substantially with conservative treatment, particularly when symptoms and function respond to progressive rehabilitation.
Whether surgery should be considered depends on factors including how the tear occurred, its size and location, age, strength, functional limitations, activity demands, and response to conservative treatment.
Does a rotator cuff tear always hurt?
No. Rotator cuff tears become increasingly common with age, and some people have tears on imaging without significant shoulder pain.
This is one reason imaging findings should always be interpreted alongside symptoms and physical examination findings.
Can I lift weights with a rotator cuff injury?
Often, yes. Training may need to be temporarily modified by changing weight, volume, exercise selection, or range of motion.
A gradual return to heavier loading is usually preferable to avoiding upper-body exercise indefinitely.
Should I get an MRI for rotator cuff pain?
Not necessarily. Many cases can initially be assessed and treated without MRI.
Imaging becomes more useful when there has been significant trauma, substantial weakness, concern about a major tear, persistent symptoms despite appropriate treatment, or when the result would change management.
How long does rotator cuff tendinopathy take to heal?
Mild cases may improve within several weeks, while persistent tendinopathy often requires several months of progressive loading and rehabilitation.
The goal is not simply waiting for the tendon to “heal,” but gradually improving its ability to tolerate the activities you need it to perform.
Should I stretch a painful rotator cuff?
Gentle mobility exercises can be helpful when shoulder movement is restricted, but aggressive stretching is not always necessary and can sometimes aggravate an irritable shoulder.
The appropriate balance between mobility and strengthening depends on the individual.
Can chiropractic treatment help a rotator cuff injury?
Chiropractic care may be one component of conservative management. Treatment can include shoulder and neck assessment, manual therapy, activity modification, and progressive exercise rehabilitation.
For most rotator cuff problems, restoring strength and gradually rebuilding the shoulder's capacity should be an important part of management.
Summary
Rotator cuff injuries are common and can range from mild tendon irritation to partial or full-thickness tears.
✔ Rotator cuff problems do not automatically mean you need surgery.
✔ Imaging findings should be interpreted alongside your symptoms, strength, function, and physical examination.
✔ Staying active and modifying aggravating activities is usually preferable to prolonged complete rest.
✔ Progressive strengthening is an important part of rehabilitation for many rotator cuff conditions.
✔ Returning to exercise gradually can help restore shoulder strength and confidence.
✔ Significant weakness after trauma or an inability to raise the arm should be assessed promptly.
Ready to Get Back to Moving Comfortably?
If shoulder pain is preventing you from exercising, sleeping comfortably, working, or doing the activities you enjoy, an assessment can help determine what may be contributing to your symptoms and what you can do about it.
Dr. Michael Hoiles is a Calgary chiropractor who provides evidence-informed care combining hands-on treatment, exercise-based rehabilitation, and practical advice to help people recover from shoulder injuries, restore strength and mobility, and return to the activities they enjoy.
Book an appointment today to have your shoulder assessed and start working toward your recovery.
Related Conditions
You may also find these resources helpful:
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AC Joint Injuries
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Frozen Shoulder
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Shoulder Instability