Clinical Roadmap: Rotator Cuff Tear

Clinical Roadmap · Shoulder

Rotator Cuff Tear

Thinking Clinically · A guide for PT students and new grads

Not every shoulder that hurts has a torn tendon, and not every torn tendon is the reason a shoulder hurts. That gap is exactly where clinical reasoning earns its keep. This roadmap walks through how to recognize a symptomatic rotator cuff tear, confirm it on exam, separate it from its look-alikes, and build a treatment plan around what the patient can actually do, not just what an image shows.

The Four Rotator Cuff Muscles

The rotator cuff is four muscles that surround the glenohumeral joint, center the humeral head in the glenoid, and help produce and control force through the arc of motion. Knowing what each one does helps you tie a patient's weakness and test findings to a specific part of the cuff.

• Supraspinatus (superior cuff) — assists with abduction and elevation and compresses the humeral head into the glenoid. Suprascapular nerve. It's the most commonly torn tendon, and Jobe/full can loads it.
• Infraspinatus (posterior cuff) — external rotation, especially with the arm at the side, plus posterior stability. Suprascapular nerve. The external rotation resistance test and lag sign load it.
• Teres minor (posterior cuff) — external rotation alongside the infraspinatus. Axillary nerve.
• Subscapularis (anterior cuff) — internal rotation and anterior stability. Upper and lower subscapular nerves. It's the largest cuff muscle, and belly-press, lift-off, and bear-hug load it.

Weakness or lag in external rotation points toward the posterior cuff, while trouble with internal rotation or a positive belly-press, lift-off, or bear-hug points toward the subscapularis. Because the cuff works as a team, a tear in one tendon changes how the others, the deltoid, and the scapular muscles have to work.

1

Recognize It

The pattern that should raise a tear on your radar:

• Middle-aged or older adult, though a traumatic tear can happen at any age
• Lateral or anterolateral shoulder pain, sometimes into the upper arm
• Pain with reaching, lifting, pushing, pulling, or overhead work
• Trouble sleeping on the involved side
• Weakness that seems disproportionate to the level of pain
• Reduced active elevation with passive range that's relatively preserved
• Trouble maintaining the arm against gravity or controlling it on the way down
• Possibly a positive lag sign
• Either a clear traumatic onset or a gradual one with no memorable injury
• A clean neuro screen
• In chronic cases, visible atrophy or compensatory movement patterns

The question worth asking before anything else: is this patient simply painful, or is there a real loss of force production? Pain can mask a shoulder's true strength. A patient who truly cannot generate or sustain force, especially with passive range still intact, deserves a closer look. And a traumatic event followed by immediate weakness or an inability to actively lift the arm is a pattern that may warrant medical evaluation and imaging sooner rather than later.

2

Confirm It

History clues: Ask whether this came from a fall, sudden traction, catching a heavy object, or forced elevation — or whether it crept in gradually with no clear trigger. Either onset is compatible with a tear. Listen for deep, aching, lateral pain, difficulty raising the arm, loss of endurance, and night symptoms.

On exam, the pattern that separates a tear from a purely painful shoulder:

• Active elevation that's noticeably worse than passive elevation — this gap is one of the most useful things you'll find
• A painful arc, though not required
• Weakness on resisted testing (Jobe/full can, external rotation, belly-press, lift-off) that seems to exceed what pain alone would explain
• A positive external rotation lag sign or drop arm test, particularly meaningful when paired with preserved passive ROM
• Subscapularis involvement on belly-press, lift-off, or bear-hug — no single subscapularis test is sensitive enough to rule out a tear
• Scapular compensation — shrugging, early elevation; that may be a response to weakness rather than its cause

The diagnostic separator to keep coming back to: is the patient unable to move because it hurts, or unable to move because they can't generate or control the force? That single question reshapes the rest of your reasoning. And remember, no isolated special test confirms a tear. You're building a cluster: meaningful weakness, a lag sign, impaired active elevation, and preserved passive range, all pointing the same direction. Clinical tests can't reliably determine tear size, so consider imaging when the result will change management, particularly after a substantial traumatic event.

3

Differentiate It

• Rotator Cuff-Related Shoulder Pain — more likely when pain is the dominant limitation, strength is relatively preserved, active ROM is near-full, and there's no meaningful lag or profound weakness.
• Adhesive capsulitis — suspect this when both active and passive ROM are restricted, especially external rotation, with stiffness more prominent than weakness.
• Glenohumeral osteoarthritis — think about this with global motion loss, joint-line pain, and crepitus in an older adult.
• Cervical radiculopathy — a red flag pattern includes symptoms extending past the typical shoulder distribution, numbness or tingling, myotomal weakness, or reflex changes.
• Calcific tendinitis — more likely with sudden, severe pain without a clear injury, pain that is worst at night and when lying on the involved side, and a calcific deposit visible on radiograph or ultrasound. Weakness is more likely to reflect pain than a true loss of force production. Some deposits are found in people without symptoms, and about a quarter of patients with calcific tendinitis also have a rotator cuff tear, so read the imaging alongside the exam.
• Proximal biceps pathology — more likely when pain is anterior near the bicipital groove, resisted elbow flexion or supination reproduces it, and active elevation isn't impaired. It often travels with a cuff problem rather than replacing it, and a sudden pop with bruising or a Popeye deformity points toward a biceps tendon tear.
• Proximal humerus fracture or other acute traumatic injury — think about this after significant trauma with severe, immediate pain, inability to use the arm, focal bony tenderness, or visible deformity, bruising, or swelling. This calls for medical evaluation and imaging rather than routine rehab.

4

Treat It

Nonoperative management is appropriate for many symptomatic small-to-medium tears, and current guidance supports physical therapy as a legitimate first-line option rather than an automatic bridge to surgery. The 2025 AAOS guideline also notes that tear size, muscle atrophy, and fatty infiltration may progress over 5 to 10 years with nonoperative management, and that healed repairs showed better outcomes than physical therapy, so these tradeoffs are worth discussing with patients.

Set the long-term comparison honestly. Through the first year, patients improve on either path: a meta-analysis of 57 randomized trials found steady Constant score gains at 3, 6, and 12 months in both nonoperative and operative arms, and a separate meta-analysis found surgery favored at 1 year by about 5.6 Constant points, a difference below the minimal clinically important difference. The longer view is less even. In the AAOS guideline, tear size had grown by more than 5 mm in 59% of nonoperatively managed patients at 10 years, and at about 9 years roughly half showed substantial muscle atrophy and 41% showed grade 3 or 4 fatty degeneration, even though patient-reported outcomes still improved with therapy. Repair isn't a permanent fix either: retears occurred in 21% of patients at 1 year, 28% at 5 years, and 34% at 10 years. Healed repairs did better than both therapy and unhealed repairs, and at 10 years the Constant score favored surgery by 9.6 points, though one trial found no significant difference at 5 years. Outcome data beyond 5 years are still limited. For patients, that means therapy is a legitimate first step, but plan to reassess over time, because the structure can change even when function holds.

Education comes first. Patients need to understand that a tear on imaging doesn't automatically explain their pain, that tears can be partial or full-thickness, and that the goal of rehab is restoring function, not necessarily making the tendon look normal on a follow-up scan.

Modify activity, don't eliminate it. Reduce what's provoking a flare, i.e. heavy overhead lifting, repetitive work — while keeping the shoulder moving within a tolerable range. The one exception: a patient with a recent traumatic event, major weakness, or inability to actively elevate the arm shouldn't simply be started on routine rehab without medical evaluation first.

Use manual therapy as an adjunct, not the plan. Glenohumeral mobilization, soft tissue work, or thoracic mobility can help when they address a specific restriction or temporarily improve comfort so the patient can move and load better. If there's no meaningful response, or the patient starts relying on passive care for symptom control, shift that time into active rehab. Manual therapy can't substitute for progressive loading.

Build the exercise progression in phases:

1. Symptom control and movement restoration — pendulum or table-slide mobility, wand-assisted elevation, and low-load isometrics for external/internal rotation, dosed to irritability rather than a calendar.
2. Progressive strengthening — move from isometric to isotonic loading: band-resisted rotation, scaption, rows, and serratus work. Don't neglect the deltoid. For patients with significant cuff dysfunction, deltoid and scapular capacity can matter just as much for functional elevation.
3. Functional loading — carries, overhead placement, work- and sport-specific lifting, progressed because the patient's capacity has improved.

Know when to reconsider the plan. Progressive weakness, new inability to actively elevate the arm, a new traumatic event, or a clinical picture that stops adding up are all reasons to circle back to medical evaluation rather than pushing forward with the current plan.

Key Takeaway

A rotator cuff tear is a structural diagnosis, but rehabilitation is a functional problem. Your job isn't just to confirm whether a tendon is torn. Your job as the PT is to determine what the patient can and can't do, how much force they can actually produce, whether pain or true structural weakness is driving the limitation, and whether the presentation is appropriate for continued conservative care or warrants a closer medical look.

Want the full field note?

This Clinical Roadmap is adapted from the full Field Note used in the upcoming Thinking Clinically Shoulder Field Guide, where you'll find the complete examination sequence, dosing parameters, and case-based practice.

Need exercise ideas?

Watch exercise demonstrations and clinical reasoning videos on the Thinking Clinically YouTube channel: youtube.com/@Thinking.Clinically

References

1. American Academy of Orthopaedic Surgeons. Management of Rotator Cuff Injuries Evidence-Based Clinical Practice Guideline. August 18, 2025.
2. Desmeules F, Roy JS, Lafrance S, et al. Rotator Cuff Tendinopathy Diagnosis, Nonsurgical Medical Care, and Rehabilitation: A Clinical Practice Guideline. J Orthop Sports Phys Ther. 2025;55(4):235–274.
3. Hermans J, Luime JJ, Meuffels DE, Reijman M, Simel DL, Bierma-Zeinstra SMA. Does this patient with shoulder pain have rotator cuff disease? The Rational Clinical Examination systematic review. JAMA. 2013;310(8):837–847.
4. Hughes PC, Taylor NF, Green RA. Most clinical tests cannot accurately diagnose rotator cuff pathology: a systematic review. Aust J Physiother. 2008. doi:10.1016/s0004-9514(08)70022-9
5. Hegedus EJ, Goode A, Campbell S, et al. Physical examination tests of the shoulder: a systematic review with meta-analysis of individual tests. Br J Sports Med. 2008. doi:10.1136/bjsm.2007.038406
6. Lädermann A, Meynard T, Denard PJ, Ibrahim M, Saffarini M, Collin P. Reliable diagnosis of posterosuperior rotator cuff tears requires a combination of clinical tests. Knee Surg Sports Traumatol Arthrosc. 2021. doi:10.1007/s00167-020-06136-9
7. Khatri C, Ahmed I, Parsons H, et al. The Natural History of Full-Thickness Rotator Cuff Tears in Randomized Controlled Trials: A Systematic Review and Meta-analysis. Am J Sports Med. 2019;47(7):1734–1743.
8. Piper CC, Hughes AJ, Ma Y, Wang H, Neviaser AS. Operative versus nonoperative treatment for the management of full-thickness rotator cuff tears: a systematic review and meta-analysis. J Shoulder Elbow Surg. 2018. doi:10.1016/j.jse.2017.09.032
9. Shepet KH, Liechti DJ, Kuhn JE. Nonoperative treatment of chronic, massive irreparable rotator cuff tears: a systematic review with synthesis of a standardized rehabilitation protocol. J Shoulder Elbow Surg. 2021;30(6):1431–1444.
10. Lädermann A, Collin P, Zbinden O, Meynard T, Saffarini M, Chiu JC. Diagnostic Accuracy of Clinical Tests for Subscapularis Tears: A Systematic Review and Meta-analysis. Orthop J Sports Med. 2021;9(9):23259671211042011.
11. Kim MS, Kim IW, Lee S, Shin SJ. Diagnosis and treatment of calcific tendinitis of the shoulder. Clin Shoulder Elb. 2020;23(4):210–216. doi:10.5397/cise.2020.00318
12. DePalma AF. Surgical anatomy of the rotator cuff and the natural history of degenerative periarthritis. Clin Orthop Relat Res. 2008;466(3):543–551. doi:10.1007/s11999-007-0103-5

Thinking Clinically · thinkingclinically.com · Educational use only; not a substitute for clinical judgment