Massive Rotator Cuff Tears

A massive rotator cuff tear is one greater than 5cm in size, or one involving two or more complete tendon ruptures. These tears present unique challenges for treatment.

Tear enlargement. An initial tear increases the stress on the remaining tendon, and the adjacent tendon margins bear the increased load. Propagation is commonly anterior-to-posterior or medial, and tears greater than 3cm have higher progression rates.

Retraction. After rupture the tendon retracts medially. Static retraction indicates a chronic, irreducible tear.

Fatty infiltration (steatosis). It occurs within 3-6 months of a complete tear and is progressive and irreversible. Muscle that has been replaced by fat cannot regenerate contractile function; the Goutallier grading that measures it is set out under Investigations.

Atrophy. Muscle cross-sectional area decreases with disuse, and the tangent sign turns positive when the supraspinatus is atrophied.

Biomechanical consequences. A torn cuff disrupts the force couple, and with it the balanced compression of the humeral head, so the unopposed deltoid pulls the head upward. In cuff tear arthropathy the undersurface of the acromion develops a concave erosion (acetabularisation) and the humeral head becomes smooth and rounded, losing the greater tuberosity (femoralisation).

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The tear's geometry, not just its size, dictates how, and whether, it can be repaired. Warner describes three patterns:

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• Crescent. Wide but not deeply retracted, with good medial-to-lateral mobility and a crescent-shaped free margin. It reaches the footprint at low tension and is repaired directly to bone, single- or double-row, without side-to-side sutures.
• U-shaped. The apex retracts far medially, toward or past the glenoid, while the anterior and posterior leaves stay mobile, so the tear looks like a U pointing medially. Pulled straight to bone the apex would be under enormous tension and fail, so the leaves are first brought together by margin convergence to make a small crescent, which is then repaired to bone at low tension.
• L-shaped and reverse-L. One leaf detaches longitudinally, giving the tear a corner: the posterior leaf in an L, the anterior in a reverse-L. The mobile leaf is sutured side-to-side to close the longitudinal limb, then the residual defect is repaired to bone.

Why it matters. The pattern shows the direction of maximum mobility and whether margin convergence is needed before bone fixation. The commonest error, and a classic cause of a high-tension repair and early failure, is to misread a U-shaped tear as a crescent and drag the retracted apex straight to the footprint.

What it is. Side-to-side suturing of the mobile anterior and posterior leaves of a U- or L-shaped tear, starting medially and working laterally. As the leaves are sewn together the free margin converges laterally toward the footprint, turning a large, deeply retracted tear into a small crescent that sits near the bone. It is the technique that makes many massive tears repairable.

Why it works. The apex of a U-shaped tear is the highest-strain point, and pulling it directly to bone concentrates the whole load at the tendon-bone interface, with gap formation and re-tear. Margin convergence shares the load along the side-to-side repair and sharply reduces the strain at the final tendon-to-bone anchors. The tear is closed where it is mobile rather than where it is tethered.

Where it fits. It is done first, before any bone fixation, and the converged margin is then repaired to the footprint, single- or double-row. It also underlies partial repair: even when the margin cannot be brought fully to bone, converging the leaves restores part of the transverse force couple and is biomechanically useful.

The limit. Margin convergence fixes the geometry and tension of a tear, not the quality of its muscle. Where Goutallier 3-4 fatty infiltration has left the muscle unable to generate force, closing the tendon does not restore it.

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History. Weakness with overhead activities and a progressive loss of function, and there may be a history of acute-on-chronic pain. Patients have difficulty sleeping on their side.

Pseudoparalysis. The patient cannot actively elevate the arm, often to less than 90°, although passive motion may be preserved. It indicates loss of the force couple, and the need for RSA rather than repair alone.

The tendon-specific signs. Three signs localise the deficit:

• Hornblower's sign - cannot externally rotate in abduction (infraspinatus/teres minor dysfunction)
• External rotation lag sign - cannot maintain the externally rotated position (posterior cuff failure)
• Belly press test - cannot maintain hand pressure on the belly (subscapularis)

Radiographs. AP, axillary lateral and scapular Y views. Look for:

• Acromiohumeral interval (AHI) under 7mm - suggests a massive tear with superior migration
• Acetabularisation of the acromion and femoralisation of the humeral head
• Glenohumeral arthritis - suggests cuff tear arthropathy

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MRI is the gold standard. It measures the size of the tear, the retraction and the tendons involved, and it grades the muscle.

Size. Tear size is measured in two planes. Coronal-oblique images give the medial retraction, from the tendon edge to the greater tuberosity; sagittal-oblique images give the anterior-posterior span across the involved tendons.

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Retraction. Retraction to the glenoid is Patte stage 3 and signals poor reducibility. Tendon retracted beyond the glenoid rim predicts a poor repair outcome.

Muscle quality. Fatty infiltration is graded by Goutallier, on CT or MRI.

Grades 3-4 predict poor outcomes after repair and may preclude it, because the muscle cannot recover. Grade 4, where fat predominates, is irreparable; grade 3 is borderline.

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Atrophy. The tangent sign is positive when the supraspinatus does not reach the tangent line on the scapular spine. An occupation ratio under 50% suggests significant atrophy.

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CT arthrography. The alternative when MRI is contraindicated. It gives excellent bone detail and can assess fatty infiltration.

Signs of an irreparable tear. Retraction to or beyond the glenoid, atrophy with a positive tangent sign, Goutallier 3-4 fatty infiltration and an AHI under 7mm, the mark of superior migration of the humeral head, are the signs of an irreparable, massive tear.

Classification schemes. Each answers a different question:

The patient who cannot actively elevate the arm is the key exam trap. The massive cuff tear has to be distinguished from the causes that mimic it.

Treatment escalates from debridement up to arthroplasty as muscle quality and arthritis worsen.

Algorithm

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Non-operativeRepairNon-Repair OptionsArthroplasty

A treatment in its own right. Many massive tears are irreparable, and many patients are unfit for, or uninterested in, reconstruction. The structured programme is anterior deltoid re-education: the anterior deltoid is recruited as the primary elevator to substitute for the absent supraspinatus.

The programme. It starts supine, where gravity is eliminated and the deltoid's line of pull is favourable, and progresses towards upright elevation as control improves. It is taught with a written and illustrated home programme and run for about three months.

Selection. Low demand, medical unfitness, an intact or functioning subscapularis and deltoid, and preserved passive range. It will not work where passive motion is lost, so stiffness must be treated first, or where the patient cannot tolerate the exercises.

Counsel honestly, because the two published series disagree sharply. Levy's original cohort of 17 patients, mean age 80, improved from a Constant score of 26 to 60, with elevation rising from 40 to 160 degrees. When Yian attempted to reproduce this in 30 consecutive patients, 9 could not complete the three months because of pain, 3 more went on to surgery, and only 40% succeeded; the authors state explicitly that they could not reproduce the earlier 82% satisfactory rate.

Evidence

Anterior Deltoid Rehabilitation in Massive Irreparable Tears - The Original Series

LoE 4

Key Findings:

• 17 medically unfit patients, mean age 80 (range 70-96), non-traumatic massive tears
• Constant score improved from a mean of 26 to 60 at a minimum of 9 months
• Forward elevation improved from a mean of 40 degrees to 160 degrees
• Delivered as a standardised home programme with written instruction and an illustrated guide

Clinical implication: Establishes that a targeted deltoid programme can restore overhead elevation in elderly patients with irreparable tears who are not surgical candidates.

Limitation: SEVENTEEN PATIENTS, NO CONTROL GROUP, AND AN ELEVATION GAIN OF 120 DEGREES THAT NO SUBSEQUENT SERIES HAS MATCHED - the outcome was assessed by the treating unit using video recordings rather than by a blinded observer, and the Constant score contains a large subjective component. Every patient was medically unfit with a mean age of 80, so this describes a very low-demand group whose baseline elevation of 40 degrees left enormous room to improve. Patients who declined or abandoned the programme are not accounted for in the abstract. The 2017 replication attempt by Yian is the necessary counterweight and should always be quoted alongside it.

Source: J Shoulder Elbow Surg 2008 (Levy, Mullett, Roberts, Copeland)

Verify on PubMed (PMID 18718765)

Evidence

Anterior Deltoid Re-education Revisited - A Failed Replication

LoE 4

Key Findings:

• 30 consecutive elderly patients prospectively enrolled in the same 3-month home programme
• 9 of 30 abandoned the programme because of pain; 3 of the 21 completers went on to surgery
• Of the 18 followed to 24 months, 6 failed to gain 20 ASES points
• Overall success rate 40% - the authors could not reproduce the earlier 82% satisfactory rate

Clinical implication: Sets the honest expectation for deltoid re-education: roughly two in five succeed, and pain is the commonest reason the programme is abandoned. Offer it, but review early rather than assuming compliance.

Limitation: THIRTY PATIENTS AND A SUCCESS DEFINITION THE ORIGINAL STUDY DID NOT USE - failure here means abandonment, surgery, or a gain of less than 20 ASES points, which is a stricter and more explicit bar than 'satisfactory', so part of the gap between 82% and 40% is a difference in definition rather than in outcome. Uncontrolled and unblinded, with no comparison against injection, general physiotherapy or no treatment, so the 40% is not attributable to the programme itself. Tear size, retraction and fatty infiltration are not reported in the abstract, so it is not possible to tell whether these shoulders were comparable to Levy's.

Source: J Shoulder Elbow Surg 2017 (Yian, Sodl, Dionysian, Schneeberger)

Verify on PubMed (PMID 28483431)

Injections and analgesia. Injections have a role for pain but not for function. Subacromial corticosteroid can settle a painful episode and make the exercise programme tolerable, but repeated injection into a shoulder that is already tendon-deficient is not benign. Analgesia and activity modification remain reasonable for the frail.

Criteria for repair. All three should be present:

• A tear that can be reduced to the footprint (not statically retracted)
• Acceptable muscle quality (Goutallier 0-2)
• No or minimal arthrosis

Technique. Arthroscopic or open. Double-row or transosseous-equivalent fixation is stronger, and margin convergence and releases may be needed.

Partial repair. If the tear cannot be fully closed but any tendon is reducible, partial repair with margin convergence is still beneficial because it biomechanically restores the force couples. Synthetic or biologic patches may be used as augmentation.

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Tendon transfer. The donor is chosen for the deficient tendon:

• Latissimus dorsi - posterosuperior tears, restoring external rotation function
• Lower trapezius - an emerging option for the posterior cuff
• Pectoralis major - subscapularis deficiency

A posterosuperior transfer, latissimus dorsi or lower trapezius, is for the shoulder with an intact subscapularis.

Superior capsular reconstruction (SCR). Dermal allograft or fascia is used to reconstitute the superior capsule, which prevents superior migration. It is for the younger patient without arthritis, and the evidence is emerging.

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Balloon spacer. A biodegradable subacromial spacer. The improvement is temporary.

Debridement and biceps tenotomy. Palliation for older, low-demand patients whose problem is pain, where the aim is comfort rather than restoration.

Cuff tear arthropathy (CTA). A massive irreparable tear with glenohumeral arthritis and superior migration of the humeral head.

Reverse shoulder arthroplasty (RSA). A semi-constrained design, ball on the glenoid and socket on the humerus, that converts the deltoid into the primary mover. It is excellent for CTA with pseudoparalysis.

Indications. CTA, pseudoparalysis, failure of other treatments, and the elderly patient, typically older than 65-70.

After repair

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After tendon transfer

Four problems to counsel for:

• Failure of transfer healing - especially latissimus dorsi
• Nerve injury - thoracodorsal (latissimus dorsi), spinal accessory (trapezius)
• Persistent weakness - the transfer may not fully restore function
• Loss of donor function - rarely clinically significant

After reverse shoulder arthroplasty

Global Epidemiology

• Full-thickness cuff tears rise sharply with age; massive tears (greater than 5 cm or 2+ tendons) are a subset concentrated in patients over 60.
• Prevalence of any cuff tear approaches 50% by the eighth decade; many are asymptomatic, so symptomatic massive tears are far less common.
• Male predominance and association with manual/overhead work and smoking are consistent across populations.
• Goutallier 3-4 fatty infiltration on presentation indicates chronic, irreversible muscle change and is the dominant negative prognostic factor worldwide.

Society Guidance, Side by Side

Registry Evidence (Arthroplasty)

• Major joint registries (AOANJRR, NJR-UK, AJRR-US, Nordic registries) all show rapid growth of RSA, now the most common shoulder arthroplasty in many countries, driven largely by cuff tear arthropathy.
• Registry and long-term series report 10-year implant survival of roughly 90%, consistent with the Donoghue 2025 cohort cited above.
• Scapular notching is the most common radiographic finding; symptomatic loosening and instability remain the leading revision reasons.

High- vs Limited-Resource Practice

• In well-resourced settings the full ladder is available: arthroscopic/partial repair, SCR (dermal allograft or fascia lata), tendon transfer, balloon spacer, and RSA.
• Where allograft, implants or arthroscopic expertise are scarce, management shifts toward physiotherapy, biceps tenotomy/debridement, open partial repair, and autograft (fascia lata) rather than dermal allograft for SCR.
• Long waiting times allow tears to progress from Goutallier 2 to 3-4, converting a repairable tear into an irreparable one - an argument for early referral and surgery in active patients.

• Definition of "massive" and "irreparable": size (greater than 5 cm), tendon number, retraction and fatty infiltration are used inconsistently; irreparability is ultimately an intra-operative judgement, not a fixed MRI threshold.
• Goutallier Grade 3: the borderline grade - some surgeons still attempt repair (often partial), others move directly to transfer/SCR. No consensus.
• SCR graft choice and durability: fascia lata autograft (Mihata) versus dermal allograft, optimal thickness, and long-term durability outside the originating centre remain debated; outcomes are highly operator-dependent.
• Pseudoparalysis terminology: distinction between true pseudoparalysis (loss of active elevation with preserved passive motion) and pseudoparesis is inconsistently applied and affects reported RSA indications.
• RSA in younger patients: lowering the age threshold below 65 is increasingly common but balanced against implant longevity and limited revision options.
• Balloon (subacromial) spacer: short-term symptomatic benefit reported, but high-level evidence for durable benefit over debridement alone is limited.
• Conservative vs surgical for low-demand patients: many massive tears are managed non-operatively with acceptable function; selecting who truly needs surgery is unresolved.