Dr Oscar Brumby-Rendell | ASULC | Adelaide Shoulder & Upper Limb Clinic | Shoulder Surgery

Osteoarthritis occurs when the smooth cartilage that lines shoulder joint bones is overused, causing the cartilage to become worn and increase in size. This form of arthritis often occurs with aging and is commonly experienced by individuals over 50.

Symptoms include:

  • Stiffness
  • Tenderness
  • Joint pain

Rheumatoid arthritis is an autoimmune disease that causes joint inflammation and can affect both shoulders simultaneously. Over time, this disease can also erode shoulder bones and cause deformation.
Symptoms include:

  • Stiff shoulders, particularly in the morning
  • Weight loss, fevers or fatigue
  • Joint warmth and tenderness

Avascular necrosis is a progressive disease that occurs when blood fails to reach the humerus (a long, upper arm bone), causing shoulder cells to die. In turn, this destroys the shoulder's joint tissue, with effects worsening over time. Shoulder fractures, dislocations, and high steroid or alcohol consumption are leading causes of avascular necrosis.

Post traumatic arthritis occurs when fluid builds up in the shoulder joint, which leads to swelling and pain in the shoulder. This is caused by improper healing of recent shoulder injuries, including dislocations and fractures.

This form of arthritis is commonly caused by a tear in the rotator cuff tendons.
Symptoms include:

  • Intense pain
  • Muscle weakness that reduces one's ability to lift heavy objects
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