Right now, squeeze your shoulder blades together and hold for 5 seconds. Repeat 10 times. That's the first exercise in the rehab protocol that helps 7 out of 10 people avoid surgery.
Your rotator cuff is like four rubber bands holding a ball centered in a cup. Over time, the rubber bands thin and fray — not from one big snap, but from years of small stretches. When two bands go, the ball slides out of center and grinds against the rim. But here's the thing: you can train the remaining bands and the muscles around the cup to take over the job. The pain isn't the fraying — it's your shoulder telling you the balance is off.
Right now, squeeze your shoulder blades together and hold for 5 seconds. Repeat 10 times.
Scapular squeezes are the first exercise in the MOON protocol — the rehab program that helps 7 out of 10 people with this tear avoid surgery.
Takes less than 2 minutes. No equipment needed.
The Verdict
Most torn rotator cuffs heal with the right exercises — surgery is rarely the first answer.
Your rotator cuff is like four rubber bands holding a ball centered in a cup. Over time, the rubber bands thin and fray — not from one big snap, but from years of small stretches. When two bands go, the ball slides out of center and grinds against the rim. But here's the thing: you can train the remaining bands and the muscles around the cup to take over the job. The pain isn't the fraying — it's your shoulder telling you the balance is off.
Want the full evidence? Keep scrolling
Progressive exercise rehabilitation (MOON protocol) STRONG
Phased from passive range of motion to active loading over 4-6 months. Focus on scapular stabilizers and glenohumeral rotator strengthening. Avoid empty-can/full-can exercises.
Source: JOSPT 2022/2025 CPG, MOON Shoulder Group 10-year longitudinal cohort (70-75% non-operative success rate). Timeline: pain reduction 4-8 weeks, functional recovery 3-6 months, full rehabilitation 6-14 months.
Patient education and expectation management STRONG
Structured education that structural damage doesn't predict functional outcome. Address MRI anxiety.
Source: MOON 10-year data — patient beliefs were the strongest predictor of conservative vs surgical pathway.
Short-term NSAIDs/acetaminophen MODERATE
For pain relief to enable active participation in rehabilitation. Not standalone treatment. Short-term use only (JOSPT 2025).
Corticosteroid injection (ultrasound-guided) MODERATE
Single injection for severe pain preventing rehab participation. Maximum 2 injections. Not first-line. No long-term benefit.
Manual therapy (adjunct) EMERGING
Glenohumeral and scapulothoracic joint mobilizations alongside exercise. Small additive effect. Never standalone.
Taping EMERGING
Short-term neuromuscular facilitation or pain modulation. Not disease-modifying.
The rotator cuff is four muscles that wrap around the ball of your upper arm bone like a fitted sleeve, keeping it centered in the socket during every movement. Their job is simple: hold the ball in the cup while the big muscles (deltoid, pectorals) do the heavy lifting.
In a multi-tendon degenerative tear, two or more of these tendons have gradually worn through. The supraspinatus goes first (it's in the tightest spot with the worst blood supply), and the infraspinatus or subscapularis follows. When two tendons fail, the shoulder loses its force couples — the balanced push-pull system that keeps everything centered.
For women, there's an extra factor: estrogen decline during perimenopause and menopause accelerates collagen breakdown in tendons. This is why degenerative rotator cuff tears become more common in women after age 50.
The good news: the shoulder is remarkably adaptable. By strengthening the scapular stabilizers and the remaining rotator cuff muscles, most people can restore functional balance without repairing the torn tendons.
"My shoulder aches all the time, it's weak when I try to lift things overhead, and it wakes me up at night."
Use a cluster of 3+ tests. High specificity tests (Drop Arm, External Rotation Lag, Lift-Off) rule IN tears. High sensitivity tests (Jobe's, Belly-Press) are for screening.
Active range of motion is limited or weak, but passive range is preserved — unlike frozen shoulder where both are restricted. No cervical spine reproduction on Spurling's test — unlike referred neck pain.
Traditional Practice (pre-2020)
Surgery preferred for all full-thickness tears to prevent progression and fatty infiltration.
MOON Shoulder Group + JOSPT 2025
70-75% of atraumatic full-thickness tears successfully managed with PT alone at 10-year follow-up. No significant tear progression or fatty infiltration within first year of PT.
Follow MOON protocol — conservative management first for all atraumatic degenerative tears. Surgery reserved for failed PT (6+ months) or acute traumatic tears.
Historical Standard of Care
Subacromial decompression considered necessary to "create space" for the rotator cuff.
Kukkonen 2014 RCT + JOSPT 2025 CPG
Surgery + PT no better than PT alone. Effect size: 5.6 Constant score points — below the minimum clinically important difference.
JOSPT 2025 explicitly recommends against subacromial decompression. The traditional "impingement" model has been largely replaced by intrinsic tendon degeneration theory.
General Clinical Belief
Physical therapy viewed as highly superior to doing nothing.
Cochrane Review 2016
Exercise and manual therapy showed only a 6.8-point difference on a 100-point pain scale vs placebo.
The effect is real but modest in pooled data. Patient engagement, education, and loading compliance are the critical moderators — not just "doing exercises."
The research: MOON 10-year study found patients who believed PT would work had successful outcomes. Those who didn't opted for surgery within 6 months.
The gap: Many patients anchor to their MRI findings — "my tendons are torn, I need surgery." The fear from imaging language significantly worsens real-world outcomes.
What to do about it: Front-load education before exercises. Explain that tear size on MRI doesn't predict pain or function. Use phrases like: "your tendons have worn like the knees on a pair of jeans — it's normal aging, and we can make you stronger and pain-free without fixing every thread."
The research: 70%+ of patients recover functionally with conservative management.
The gap: 37% of conservatively managed tears grow larger by 5mm+ on 5-year ultrasound. If a patient later wants surgery, the window may close due to irreversible fatty infiltration and retraction.
What to do about it: Have an honest conversation upfront. Under 55 and very active? Give rehab 6 months, then reassess surgical timing if goals aren't met. Over 60 and wanting pain-free daily life? Conservative is almost certainly the right path.
The research: MOON protocol success rates are based on structured, supervised programs with high compliance (3x/week strengthening, daily range of motion).
The gap: Real-world home exercise compliance drops significantly without direct supervision.
What to do about it: Build compliance systems: video demonstrations, weekly check-in texts, exercise logging. First 6-8 weeks should include supervised sessions. Graduate to home-based only after competency and consistency are demonstrated.
Conservative management works for 70-75% of people — but that statistic hides important details. Atraumatic (gradual wear) tears have an 84% success rate with PT, while traumatic tears have only 16%. The type of tear matters more than the size.
The surgery conversation is age-dependent. For women under 55 who are very active, a 6-month PT trial is the right starting point — but don't wait years if goals aren't met, because the tendon retracts and the muscle fills with fat, making surgical repair harder or impossible.
For women over 60, conservative management is almost certainly the right path. The surgical complication rate increases with age, re-tear rates after repair run 15-30%, and functional outcomes with PT are excellent for daily-life activities.
The strongest predictor of outcome isn't the tear size or the exercises — it's whether the patient believes rehab will work. Managing expectations and addressing MRI anxiety upfront is as important as the exercise prescription.
What would change this protocol: A large RCT (n>300) in women aged 45-65 showing heavy eccentric loading outperforms the MOON protocol in both functional outcomes AND structural arrest of fatty infiltration on 5-year MRI follow-up.
How strong is the evidence for the claims in this review? Higher = more confidence the claims are supported. This does not measure how large the effect is or how important it is compared with other levers.
Physio conditions reviewed against clinical evidence. What works, what doesn't, and what to do — from a practising physiotherapist.
Subscribe freeThe Verdict is built by the same team behind Precision Metrics — a physique and health coaching practice with 300+ clients coached. Dr. Seth Holbrook, DPT and Luke Holbrook lead the coaching.
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