II. History: Age at onset

  1. Under age 40 years old
    1. Glenohumeral Instability (especially if history of trauma)
      1. Shoulder Dislocation
      2. Shoulder Subluxation
    2. Shoulder Impingement
  2. Over age 40 years old
    1. Rotator Cuff Tear (especially if history of trauma)
    2. Shoulder Adhesive Capsulitis
    3. Glenohumeral Osteoarthritis

IV. History: Provocative factors

  1. Pain with overhead activity
    1. Rotator Cuff Tear
    2. Shoulder Impingement
  2. Collision sports or overhead activities (Throwing sports and Raquet sports)
    1. Glenohumeral Instability (Shoulder Dislocation, Shoulder Subluxation)
    2. Rotator Cuff Tear or Shoulder Impingement

V. History: Associated Symptoms

  1. Arm weakness
    1. Rotator Cuff Tear or Shoulder Impingement
    2. Glenohumeral Osteoarthritis
  2. Distal arm Paresthesias beyond elbow
    1. Cervical disc disorder
  3. Instability sensation (especially if history of prior Shoulder Dislocation)
    1. Glenohumeral Instability (Shoulder Dislocation, Shoulder Subluxation)
  4. Catching or locking sensation
    1. Glenohumeral labrum tear
    2. Glenohumeral Arthritis
  5. Comorbid conditions or referred pain
    1. See Shoulder Pain for differential diagnosis
    2. Diabetes Mellitus predisposes to Adhesive Capsulitis

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