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ShoulderCapsular / StiffnessModerate evidence

Adhesive Capsulitis (Frozen Shoulder)

Painful progressive restriction of active and passive glenohumeral movement, typically with external rotation most limited.

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Structures Involved

  • Glenohumeral capsule and rotator interval; capsular fibrosis and synovial changes are implicated.

Mechanism / Why It Happens

  • Often gradual onset without a single injury
  • Associated with diabetes and thyroid disease; may follow immobilisation

Classification / Grades

  • Freezing/painful phase
  • Frozen/stiff phase
  • Thawing/recovery phase; stages overlap and duration varies

Symptoms

  • Progressive shoulder pain and stiffness
  • Difficulty dressing, reaching behind back or overhead
  • Night pain, especially early

Clinical Signs

  • Global active and passive ROM restriction
  • External rotation commonly most restricted
  • Scapular substitution

Red Flags & Referral Clues

  • Acute traumatic inability to elevate arm
  • Fever, hot swollen joint or systemic illness
  • Cancer history, unexplained mass or constitutional symptoms
  • Neurological or referred cardiopulmonary symptoms

Diagnostic Examination

How to perform the tests — step by step

Each test includes patient setup, therapist position, hand placement, exact performance, positive finding and clinical interpretation.

Passive External Rotation Assessment

Identify the characteristic global capsular restriction pattern.

Patient position

Supine or seated; stabilise scapula and gently assess passive external rotation with arm by side.

Therapist position

Position yourself to observe and stabilise the relevant segment without forcing the movement.

Hand placement

Use comfortable, controlled contact appropriate to the test; avoid painful compression or excessive force.

How to perform

  1. 1Explain the test and obtain consent.
  2. 2Screen contraindications and compare sides when appropriate.
  3. 3Perform the movement slowly and apply only the required resistance or stress.
  4. 4Record familiar symptom reproduction, range, strength and side-to-side difference.

Positive sign

Marked restriction compared with other side with a firm capsular end-feel and concordant symptoms.

Interpretation

Supports adhesive capsulitis when global passive restriction and history fit; exclude arthritis and other causes.

Clinical note: A special test modifies clinical probability; it does not confirm a diagnosis in isolation.

Differential Diagnosis

  • Glenohumeral osteoarthritis
  • Rotator cuff tear
  • Septic arthritis
  • Fracture
  • Cervical referred pain

Investigations / Imaging

  • Diagnosis is usually clinical; radiographs may help exclude glenohumeral arthritis when indicated.
  • Ultrasound/MRI is not routinely required for a typical presentation.

Complete Rehabilitation Plan

From protection to full function

Phase 1 — Protection, Education & Symptom-Guided Loading

Address safety, settle excessive irritability and maintain useful movement.

What to do

  • Education about variable natural history and symptom-guided activity
  • Maintain tolerable movement; avoid forceful stretching during highly irritable phase
  • Coordinate medical management of pain and relevant metabolic conditions

Exercise dosage

  • Gentle assisted ROM: 5–10 reps, several times/day, within tolerable pain
  • Pendulum or supported table slides if comfortable

Progress when

  • Daily function is stable or improving.
  • No new red flags or progressive neurological deficit.
  • Exercise response returns to baseline by the following day.

Phase 2 — Mobility, Strength & Capacity

Restore the specific strength, mobility and control required by the condition.

What to do

  • Progress capsular mobility within irritability limits
  • Restore rotator cuff and scapular strength as ROM allows
  • Functional reaching and behind-back tasks graded gradually

Exercise dosage

  • Low-load prolonged stretch: 20–60 seconds, 3–5 reps when irritability permits
  • Rotator cuff/scapular strengthening: 2–3 x 8–15

Progress when

  • Target movement and resistance are tolerated with good quality.
  • Functional capacity is improving without sustained symptom flare.
  • Progression is based on objective performance and patient goals.

Phase 3 — Functional Restoration & Return to Activity

Rebuild real-world, occupational or sporting capacity.

What to do

  • Progress end-range mobility and strength
  • Increase overhead, dressing and occupational capacity
  • Maintain gains with home programme

Exercise dosage

  • Progress resistance 2–4 x 6–15, 2–3 days/week
  • Task-specific reaching practice with gradual range/load increase

Progress when

  • Condition-specific return criteria are met.
  • Full task exposure is completed progressively.
  • No clinically meaningful deterioration during the following 24 hours.

Manual Therapy — Role & Application

  • Low-grade mobilization may be appropriate in painful/high-irritability stage; stronger mobilization only when irritability is lower.
  • Manual therapy is adjunctive and should not provoke prolonged flare.

Modalities — Use / Avoid

  • Heat before mobility may help comfort.
  • Discuss medical options such as intra-articular corticosteroid with the treating prescriber when pain limits rehabilitation; physiotherapists should not independently prescribe.

Return / Discharge Criteria

  • Functional reach and dressing improved
  • ROM adequate for work and daily tasks
  • Strength and activity tolerance restored without prolonged flare

Common Clinical Mistakes

  • Aggressive stretching in a highly painful shoulder
  • Assuming every stiff shoulder is adhesive capsulitis
  • Ignoring diabetes/thyroid association
  • Promising a fixed recovery timeline

Clinical Pearls

  • Passive external rotation loss is a key clinical clue.
  • Stage and irritability should guide exercise and mobilization intensity.

Continue learning

Connect assessment with management

Use the related PNA learning pathways to explore examination techniques and structured rehabilitation. A test result should always be interpreted alongside the history, full examination and clinical presentation.

Evidence sources

Use these sources as a starting point for clinical learning. A reference being listed here does not, by itself, establish that every recommendation on this page is strongly supported. Check the original publication, study design, population and limitations before applying findings to an individual patient.

Educational resource only. Tests and treatment plans must be adapted to the individual patient, irritability, comorbidities, surgical restrictions and local scope-of-practice requirements.