What is the most prevalent type of shoulder arthritis?

Osteoarthritis is the most prevalent type of shoulder arthritis, commonly referred to as degenerative joint disease. This condition typically arises due to the wear and tear of cartilage over time, leading to pain, stiffness, and reduced range of motion in the shoulder joint. Given its progressive nature, osteoarthritis is especially prevalent in older adults, making it a widespread issue in the population.

In contrast, rheumatoid arthritis is an autoimmune disorder that can affect the shoulder, but it is less common than osteoarthritis overall. Post-traumatic arthritis occurs as a result of prior injuries to the shoulder, such as fractures or dislocations, which can lead to joint degeneration; this type is also less prevalent as it depends on specific prior trauma. Rotator cuff arthropathy is characterized by degenerative changes related to rotator cuff disease, but it is a specific condition that does not hold prevalence compared to general osteoarthritis. Thus, osteoarthritis stands out as the most common form of shoulder arthritis encountered in clinical settings.