I. Signs: Joint hyperextension

  1. Thumb hyperextension onto Forearm
  2. Metacarpal hyperextension
  3. Elbow hyperextension
  4. Knee hyperextension
  5. Spine hyperextension
    1. Forward flexion with knees straight, palms on floor

II. Associated Conditions

  1. Marfan Syndrome
  2. Ehlers-Danlos Syndrome
  3. Bemign Hypermobility Syndrome

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