Shoulder Pain Treatment in Canada (2026): Rotator Cuff, Frozen Shoulder, Impingement, Injections, Surgery, and What BPC-157 Research Shows

Comparison Guide · 20 min read · Updated October 2026

How the shoulder works

The shoulder trades stability for mobility: it is the most mobile joint in the body, a large ball sitting on a shallow socket. What keeps it centred is the rotator cuff, four muscles (supraspinatus, infraspinatus, teres minor and subscapularis) whose tendons wrap around the ball. Above them sits a bursa, a fluid-filled cushion, and the bony arch of the acromion.

Because the cuff works constantly and its tendons have a limited blood supply, it is the most common source of shoulder pain, especially after 40.

What’s causing your shoulder pain

When shoulder pain is urgent

• Left shoulder or arm pain with chest pressure, shortness of breath or sweating: call 911, possible heart attack.
• A deformed shoulder or inability to move it after a fall: possible dislocation or fracture.
• Sudden inability to lift the arm after an injury: possible acute cuff tear; early surgical assessment matters.
• A hot, swollen shoulder with fever: possible joint infection.
• Shoulder pain with unexplained weight loss or a history of cancer.

The treatment scorecard

Exercise therapy for the rotator cuff

For rotator cuff tendinopathy, the principle is the same as for other tendons: tendons adapt to progressive load. A typical physiotherapy program runs 12 weeks or more:

Some discomfort during exercise is acceptable if it settles within 24 hours. Shoulder blade (scapular) strength and posture work are usually included. Consistency over months, not specific magic exercises, drives results.

“Impingement” and the surgery that didn’t beat placebo

For decades, shoulder pain on lifting the arm was blamed on the bone above the cuff “pinching” the tendon (impingement). The fix was arthroscopic subacromial decompression: shaving bone to create space. It became one of the most common orthopaedic operations.

Then two rigorous trials tested it against a placebo operation:

• In the UK CSAW trial, decompression surgery was no better than investigational arthroscopy alone, in which surgeons looked inside the joint but removed nothing (Beard et al., 2018).
• In the Finnish FIMPACT trial, decompression was no better than diagnostic arthroscopy, and neither surgery beat structured exercise in a clinically meaningful way (Paavola et al., 2018).

The shift in thinking: most “impingement” pain is a tendon load problem, not a bone problem. Exercise therapy is now first-line, and many guidelines recommend against decompression surgery for this indication.

Rotator cuff tears: surgery or physio?

Rotator cuff tears are extremely common with age, and many are found on scans of people with no pain at all. Treatment depends on how the tear happened:

Degenerative (non-traumatic) tears

Common after 50, developing gradually. In a Finnish trial of non-traumatic supraspinatus tears in older patients, physiotherapy alone gave results similar to surgical repair at one and two years (Kukkonen et al., 2014). Most degenerative tears are treated with exercise first, with surgery considered if pain and weakness persist.

Acute traumatic tears

A fall or sudden heavy load in an active person causing new, significant weakness is different. Large traumatic tears do better with early repair, ideally within weeks, before the tendon retracts and the muscle degenerates. Prompt assessment and imaging matter.

Recovery after repair

Rotator cuff repair recovery is long: a sling for several weeks, passive then active movement, strengthening from about 3 months, and full recovery often taking 6 to 12 months. Re-tear rates are higher with large tears, older age and smoking.

Frozen shoulder

Frozen shoulder (adhesive capsulitis) is inflammation and then thickening and contraction of the joint capsule. It classically moves through three overlapping phases:

The overall course is often one to three years, and most people recover most of their movement. People with diabetes are at much higher risk and tend to have longer, more stubborn cases.

What helps

• An early cortisone injection into the joint, during the painful phase, reduces pain and speeds early recovery more than other options.
• Gentle stretching within tolerance; aggressive forced stretching in the painful phase often backfires.
• Hydrodilatation: injecting fluid (often with steroid) to stretch the capsule.
• Manipulation under anaesthesia or capsular release surgery for persistent, severe cases.
• Pain control and sleep strategies during the painful phase.

Cortisone, PRP and other injections

• Subacromial cortisone injections relieve rotator cuff pain for weeks, which can make an exercise program possible. Repeated injections into the same tendon area are generally limited, as they may weaken tendon tissue.
• Glenohumeral (joint) injections are used for frozen shoulder and arthritis.
• PRP: mixed evidence in rotator cuff tendinopathy and as an add-on to repair; not covered by provincial plans.
• Hyaluronic acid: some use in shoulder arthritis; modest evidence.
• Ultrasound guidance improves accuracy and is increasingly standard.

Calcific tendinitis

Calcium deposits in the rotator cuff can cause sudden, severe pain, especially as the body starts reabsorbing them. Options include:

• Anti-inflammatories and a cortisone injection for acute pain
• Shockwave therapy, which has reasonable evidence for calcific tendinopathy
• Ultrasound-guided barbotage (lavage): needling and washing out the deposit
• Surgical removal for persistent cases

Many deposits resolve on their own over time.

Shoulder arthritis and replacement

Glenohumeral osteoarthritis causes gradual pain and stiffness, usually after 60. Exercise, activity modification, anti-inflammatories and injections help early on. For advanced arthritis, total shoulder replacement or, when the rotator cuff is also torn, reverse shoulder replacement provides reliable pain relief and function. Reverse shoulder replacements have become much more common over the past decade, particularly for older patients with large irreparable cuff tears.

Sleeping with shoulder pain

• Avoid lying on the painful side.
• Lying on the good side, hug a pillow to support the painful arm.
• On your back, place a small pillow under the elbow of the painful arm.
• Some people sleep better semi-reclined in the early painful phase.
• Time pain medication or ice before bed, if safe for you.

Night pain is a common reason people seek care; if it’s severe and persistent, ask about an injection. For broader sleep help, see insomnia treatment in Canada.

BPC-157 and TB-500: what the research shows

BPC-157 and TB-500 are often discussed for shoulder injuries because of animal research on tendons and ligaments:

• BPC-157 improved healing of surgically cut Achilles tendons in rats (Staresinic et al., 2003) and increased tendon cell outgrowth, survival and migration in culture (Chang et al., 2011).
• TB-500, a fragment of thymosin beta-4, has animal research in wound and tissue repair.

There are no published trials of either in rotator cuff tendinopathy, cuff tears or frozen shoulder. Rotator cuff repair failure (the tendon not healing to bone) is a real clinical problem, which is why tendon-to-bone healing is an active research area, but peptides have not been tested for it in people.

For laboratory research only, with reports in our COA library.

Costs and access in Canada

Workplace shoulder injuries may be covered by provincial workers’ compensation boards, which often fund physiotherapy.

Shoulder pain by group

Weightlifters

Common problems include rotator cuff tendinopathy, AC joint irritation (“weightlifter’s shoulder”, sometimes with distal clavicle osteolysis) and biceps tendon pain. Fixes usually involve temporarily modifying pressing angles (for example neutral-grip or incline instead of flat barbell bench), building rotator cuff and upper back strength, and progressing volume gradually.

Throwers, swimmers and racquet athletes

Repetitive overhead motion stresses the cuff and the labrum. Programs focus on rotator cuff endurance, shoulder blade control, thoracic mobility and managing training load across the season.

People with diabetes

Diabetes raises the risk of frozen shoulder several-fold and of rotator cuff problems, and tends to slow recovery. Good blood sugar control and early treatment of stiffness matter.

Older adults

Degenerative rotator cuff tears and arthritis become more common. Many cuff tears in older adults are well managed with exercise; reverse shoulder replacement is an option for painful, irreparable tears with arthritis.

Dislocation and instability

The shoulder is the most commonly dislocated major joint. A first dislocation, usually forward (anterior) after a fall or tackle, needs prompt reduction in an emergency department.

• Recurrence risk is highest in young people: teenagers and young adults who dislocate have a high chance of it happening again, which is why early surgical stabilization is often discussed for young athletes.
• Older adults are more likely to tear the rotator cuff with a dislocation; weakness afterward needs assessment.
• Rehabilitation focuses on strengthening the cuff and shoulder blade muscles and restoring confidence.
• Multidirectional instability, often in people with naturally loose joints, is usually treated with specialized exercise programs rather than surgery.

A home starter routine

For non-urgent rotator cuff-type pain, a physiotherapist should tailor your program. These commonly used exercises give a sense of what’s involved:

A common guide is that discomfort up to a mild-to-moderate level during exercise is acceptable if it settles within 24 hours. Sharp, worsening or night-disturbing pain means scaling back and checking in with your clinician.

Desk work and shoulder pain

• Keep the keyboard and mouse close so elbows rest near your sides.
• Set the monitor at eye level to avoid a forward head and rounded shoulders.
• Support forearms on the desk or armrests.
• Break up long sitting with brief movement every 30 to 45 minutes.
• Strengthen the upper back; posture alone rarely fixes pain without strength.

Shoulder pain myths

1. “Bone spurs cause impingement and need shaving.” Placebo-controlled trials found decompression surgery no better than sham surgery.
2. “An MRI tear always explains the pain.” Many people without shoulder pain have cuff tears on imaging.
3. “Rest is best for rotator cuff pain.” Tendons need progressive load to recover.
4. “Frozen shoulder means you’ll be stiff forever.” Most people recover most of their movement over one to three years.
5. “Push through frozen shoulder pain with aggressive stretching.” Forced stretching in the painful phase often makes it worse.
6. “Cortisone shots damage everything.” Used selectively they are helpful; frequent repeated injections into the same tendon are what clinicians avoid.

Questions to ask an orthopaedic surgeon

1. What exactly is the diagnosis, and does the imaging match my symptoms?
2. What happens if I do a full course of physiotherapy first?
3. For a tear: is it traumatic or degenerative, and how large and retracted is it?
4. What are the chances the repair heals, given my age and the tear?
5. How long is recovery, and when can I return to work and sport?
6. What are the risks, including stiffness and re-tear?
7. What’s the wait time, and how should I manage pain meanwhile?

Biceps tendon and labrum problems

The long head of the biceps tendon runs over the front of the shoulder and attaches to the labrum, a rim of cartilage that deepens the socket.

• Biceps tendinopathy causes pain at the front of the shoulder, often alongside rotator cuff problems. It usually responds to load management and strengthening.
• SLAP tears (superior labrum anterior to posterior) occur in throwing athletes and after falls on an outstretched arm. Many are managed with rehabilitation; surgical repair is now used more selectively, and in older patients biceps tenodesis (re-attaching the tendon lower down) is often preferred.
• Biceps rupture at the shoulder causes a sudden pop and a “Popeye” bulge in the upper arm. In older adults it often causes little lasting weakness and is usually managed without surgery.
• Labral tears from dislocation (Bankart lesions) contribute to recurrent instability and are often repaired in young athletes.

Recovery timelines at a glance

Timelines vary with age, health, the size of the problem and commitment to rehab. Diabetes and smoking tend to slow recovery.

FAQ

Related reading

• Tendonitis treatment in Canada
• Knee pain treatment in Canada
• Herniated disc and sciatica treatment
• BPC-157 vs TB-500

References

1. Beard DJ, Rees JL, Cook JA, et al. Arthroscopic subacromial decompression for subacromial shoulder pain (CSAW). Lancet. 2018;391(10118):329–338. PubMed
2. Paavola M, Malmivaara A, Taimela S, et al. Subacromial decompression versus diagnostic arthroscopy for shoulder impingement (FIMPACT). BMJ. 2018;362:k2860. PubMed
3. Kukkonen J, Joukainen A, Lehtinen J, et al. Treatment of non-traumatic rotator cuff tears: a randomised controlled trial with one-year clinical results. Bone Joint J. 2014;96-B(1):75–81. PubMed
4. Staresinic M, Sebecic B, Patrlj L, et al. Gastric pentadecapeptide BPC 157 accelerates healing of transected rat Achilles tendon. J Orthop Res. 2003;21(6):976–983. PubMed
5. Chang CH, Tsai WC, Lin MS, et al. The promoting effect of pentadecapeptide BPC 157 on tendon healing involves tendon outgrowth, cell survival, and cell migration. J Appl Physiol. 2011;110(3):774–780. PubMed

This article is general information, not medical advice. See a physician or physiotherapist for shoulder pain. TrueLabs research compounds are sold for in vitro and laboratory research use only and are not intended for human or veterinary use.