Anatomy
  • The shoulder joint has three bones: the shoulder blade (scapula), the collarbone (clavicle), and the upper arm bone (humerus).
  • The head of the upper arm bone (humeral head) rests in a shallow socket in the shoulder blade called the glenoid. The head of the upper arm bone is usually much larger than the socket, and a soft fibrous tissue rim called the labrum surrounds the socket to help stabilize the joint. The rim deepens the socket by up to 50% so that the head of the upper arm bone fits better. In addition, it serves as an attachment site for several ligaments.
Causes
  • Injuries to the tissue rim (labrum) surrounding the shoulder socket can occur from acute trauma or repetitive shoulder motion
    • Falling on an outstretched arm
    • A direct blow to the shoulder
    • A sudden pull, such as when trying to lift a heavy object
    • A violent overhead reach, such as when trying to stop a fall or slide
    • Repetitive strain from throwing athletes
Symptoms
  • A sense of instability in the shoulder
  • Shoulder dislocations
  • Pain, usually with overhead activities or certain movements
  • Catching, locking, popping, or grinding
  • Occasional night pain or pain with daily activities
  • Decreased range of motion
  • Loss of strength
Treatment
  • Nonsteroidal anti-inflammatory medicines. Drugs like ibuprofen and naproxen reduce pain and swelling. Like any over the counter medication, please read and follow the label. If you have a history of stomach ulcers, bleeding ulcers or heart conditions, these medications might not be right for you. Consult your physician if you have any questions.
  • Physiotherapy
    • Range of motion exercises and flexibility
    • Ultrasound
    • Massage
  • Topical anti-inflammatories
    • Compound Topical Creams
    • Voltaren
  • Injections
    • Steroid (Depo-Medrol, Kenalog, Decadron)
    • Blood (PRP – Platelet Rich Plasma)