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Articles » Injuries » Injuries of the upper limbs » Acromio Clavicular (AC) Joint Sprain

Acromio Clavicular (AC) Joint Sprain

What it Effects

  • The ligaments keeping the joint stable
  • There are four:
    • Acromioclavicular
    • Coracoacromial
    • Conoid
    • Trapezoid ligament

Mechanism of Injury

  • Commonly due to a fall onto the tip of the shoulder as this can force the scapula (shoulder blade) down and stretch the ligaments, therefore straining them

Signs and Symptoms

  • Pain
  • Tenderness
  • Depending on degree of injury the clavicle (collar bone) maybe sticking up
  • Position of ease when arm is cradled
  • Pain on movement + +


  • Seek medical advice
  • Sling for arm
  • Keep full range of movement in all joints of the arm
  • Exercise
  • Avoid heavy lifting

Additional Information

Exercise Videos

- Range of movement

If you have any questions, please use the comment form below or post a thread on the forums.

— Phil @ 11:33 pm, July 4, 2006

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