Rotator cuff tears are one of the most common causes of shoulder pain. They occur across a wide range of age groups, from young, active adults to the elderly, and can significantly interfere with daily activities. Their incidence increases with age, with 28% of the population over the age of 60 having a full-thickness rotator cuff tear, either symptomatic or asymptomatic, and the percentage rising to 65% after the age of 70. Well-known risk factors, aside from age, include smoking, hypercholesterolemia, and a positive family history.
The rotator cuff is a layer of soft tissue surrounding the shoulder joint, made up of the tendons of four muscles originating from the scapula: supraspinatus, infraspinatus, teres minor, and subscapularis. Its main role is to act as a crucial dynamic stabilizer of the shoulder throughout its full range of motion.
Rotator cuff tears can result from different pathogenic mechanisms. In older adults, tears are often due to intrinsic tendon degeneration that occurs over time, making them chronic and degenerative in nature. In contrast, in younger and more active patients, tears may occur as acute avulsion injuries following trauma or shoulder dislocation (such as falls or sports injuries). Another common cause is chronic tendon impingement as it slides beneath the acromion, a bony projection of the scapula. Finally, rotator cuff tears may unfortunately occur after shoulder surgery, despite optimal efforts to repair and restore joint function.
Rotator cuff disorders exist on a continuum, beginning with milder conditions such as subacromial impingement or calcific tendinitis, before progressing to rotator cuff tear or, in cases involving cartilage degeneration, rotator cuff arthropathy. They may also coexist with other pathologies such as acromioclavicular joint disease, long head of the biceps tendon disorders, or—in throwing athletes—with internal impingement.
Rotator cuff tears can be classified by the tendon involved (supraspinatus, infraspinatus, teres minor, subscapularis), by size (small: up to 1 cm, medium: 1–3 cm, large: 3–5 cm, massive: >5 cm), by thickness and location (less than 25%, 25–50%, or more than 50% of tendon thickness on the articular or bursal side, or intratendinous), and by shape (crescent-shaped, U-shaped, L-shaped, or massive). Another important factor to assess is the degree of fatty infiltration or muscle atrophy of the affected tendon (Goutalier classification, grades 0–4). All these factors must be considered when discussing a management plan with the patient, whether surgical or conservative, since they can influence tendon healing and functional recovery.
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Symptoms of rotator cuff tears vary depending on the cause, ranging from acute pain and sudden loss of arm movement after trauma to insidious, chronic pain during overhead activities or at night, combined with progressive loss of strength and joint function. Depending on the tendon involved, weakness may present as difficulty lifting the arm to the side (abduction – supraspinatus tear), externally rotating the shoulder either with the arm at the side (infraspinatus tear) or at 90 degrees abduction (teres minor tear), or internally rotating the shoulder (subscapularis tear).
Imaging studies include plain radiographs, which help assess the bony structures of the joint and detect associated conditions (e.g., calcific tendinitis, shoulder or acromioclavicular joint arthritis), as well as acromial morphology. However, MRI remains the gold standard for diagnosing rotator cuff tears, as it is highly sensitive and specific in evaluating tear size, shape, degree of retraction, and muscle quality in terms of fatty infiltration. MRI can also visualize the long head of the biceps tendon and provide valuable information about intra- and periarticular structures. Ultrasound is another diagnostic tool available for evaluating rotator cuff pathology and can also be used to guide intra-articular injections. In the hands of an experienced examiner, its diagnostic accuracy can rival that of MRI.
The management of rotator cuff tears depends on the patient’s needs and expectations, taking into account age, activity level, mechanism of injury, and anatomical characteristics of the tear (size, depth, retraction, muscle atrophy). Conservative treatment is considered first-line for nearly all rotator cuff tears. For selected partial-thickness tears or even some massive tears in elderly or less active patients, non-surgical treatment may be sufficient to relieve pain and provide good functional results. Conservative care may involve an initial period of rest and avoidance of overhead activities, oral analgesics, and/or subacromial corticosteroid injections, followed by a structured, intensive physiotherapy program. This typically includes strengthening exercises for the rotator cuff and scapular stabilizers and may last three to six months.
Surgical treatment of rotator cuff tears offers a variety of techniques, depending on patient and tear characteristics. Surgery may be performed arthroscopically or through a mini-open approach. Options range from debridement/refreshing of small partial-thickness articular-side tears to repair/suturing for acute full-thickness tears, bursal-side tears greater than 25% thickness, or articular-side tears greater than 50% thickness. In cases of massive, irreparable tears where return to pre-injury activity is essential (e.g., in manual laborers), tendon transfers from neighboring muscles such as the pectoralis major or latissimus dorsi may be considered to replicate the function of the torn cuff. Finally, in patients with massive rotator cuff tears accompanied by shoulder arthritis but an intact deltoid, reverse total shoulder arthroplasty may relieve pain and restore good function. shoulder arthroplasty can provide pain relief and good functional results.
Patients should be informed of the prolonged recovery period following rotator cuff surgery, as tendon healing, muscle strengthening, and full restoration of function require time. During the first six to eight weeks, patients usually wear an abduction brace and are allowed to perform only gentle, passive range-of-motion exercises such as pendulums, while active mobilization is restricted. After this initial phase, physiotherapists gradually guide patients through active motion and strengthening of the rotator cuff and scapular stabilizers. Return to full function and occupational or sports activities, particularly for those engaged in contact sports or heavy manual work, is typically expected six to ten months postoperatively.
In summary, rotator cuff tears are a common shoulder condition affecting people of all ages. They can occur after acute injuries or as a result of chronic tendon degeneration. Patient-specific factors and tear characteristics are crucial in planning treatment. While conservative therapy may be sufficient in many cases, surgical repair is often required, always followed by intensive, specialized physiotherapy to achieve the best functional outcomes.
A rotator cuff tear is an injury to the tendons that stabilize the shoulder.
Shoulder pain, weakness in lifting the arm, and stiffness are the key signs.
Treatment may involve physiotherapy or arthroscopic surgical repair.
Recovery usually lasts between 3 and 6 months, depending on severity.
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