Osteoarthrosis of the shoulder
Wear-and-tear of the shoulder joint / shoulder arthrosis

Osteoarthrosis of the shoulder is a less common form of arthrosis. It is commonly referred to as wear-and-tear of the shoulder. This refers to wear-and-tear of the cartilage.

shoulder osteoarthrosis arthrosis x ray

Osteoarthrosis of the shoulder mainly affects people over the age of fifty years.

Description of the condition

Joint surfaces made of bone are covered by a thin layer of cartilage. This is also the case for the ball and socket of the shoulder joint. The cartilage acts like a shock absorber and ensures optimum sliding of the individual bone components in the shoulder joint. Osteoarthrosis of the shoulder is associated with a deterioration in quality of the cartilage. This causes the shoulder joint to move less smoothly and decreases the range of motion. Loss of cartilage can result in chronic shoulder symptoms.

As the cartilage is gone, bone-to-bone contact can occur in the joint. This is painful and makes the joint less mobile. The body responds by forming osteophytes. This means that abnormal bony growths occur along the edges of the shoulder joint. This is the body's repair response to combat the effects of osteoarthritis. By making the joint wider, this distributes the pressure over a greater surface area.

Cause and origin

The patient is usually over the age of 50 years. The symptoms develop gradually as a result of ageing and wear-and-tear. The quality of the cartilage decreases with increasing age and wear-and-tear occurs. This is a natural process. Almost everyone over the age of 75 years has osteoarthrosis in one or more joints.

Shoulder arthrosis can also occur at a younger age. For example, the cartilage can become damaged in an accident. Symptoms can also develop as a result of abnormalities within the joint. Prolonged injury of the tendons or the cartilage (for example after a fall) can result in osteoarthrosis, because the cartilage is used incorrectly for an extended period of time.

Signs & symptoms

People with shoulder arthrosis usually experience pain and stiffness of the shoulder joint. Typical symptoms include:

  • Painful shoulder, particularly when starting to move.
  • Morning stiffness. This means that the symptoms occur mainly in the morning or after an extended period of inactivity. The person needs to "get moving" before the symptoms decrease.
  • Crepitations (a cracking sound or sensation in the shoulder when moving).
  • Decreased mobility of the shoulder movements.


Not all of the symptoms are present all the time and people can experience periods with a lot of symptoms or few symptoms. It is often difficult to indicate where the pain is located.

Diagnosis

The X-ray will reveal joint space narrowing between the ball and socket of the shoulder. Any osteophyte formation will also be visible. X-rays are taken if the physical examination cannot rule out shoulder arthrosis based on the symptoms and the tests that were performed.

Treatment

Wear-and-tear of the cartilage cannot be reversed. Once it's gone, it's gone. It is possible to keep the cartilage as healthy as possible by getting regular doses of gentle exercise. We will provide an explanation below about why it is important to keep moving.

Cartilage acts like a sponge. When weight is placed on it, it compresses and the waste products are removed. When the pressure is released, the cartilage sucks in nutrients. The sponge action therefore ensures an ideal environment for the cartilage. This explains why complete rest is bad for the cartilage; the sponge effect is not utilised, resulting in reduced circulation of waste products and nutrients.

An exercise programme for the shoulder, under the supervision of a physiotherapist, can be created to combat the effects of osteoarthrosis. In addition, various techniques can be applied to keep the shoulder as mobile and pain-free as possible.

If conservative treatment does not result in improvement, then surgical intervention can be considered. A number of procedures are possible. A shoulder replacement (shoulder prosthesis) can be performed for severe, increasing symptoms. However, shoulder replacement performed for shoulder arthrosis does not provide the same results as knee or hip replacement. Therefore, the first objective is to try to reduce the pain using medication.

Advice


You can check your symptoms using the online physiotherapy check or make an appointment with a physiotherapy practice in your area.

shoulder osteoarthrosis arthrosis

References
Boselli, K.J., Ahmad, C.S. & Levine, W.N. (2010). Treatment of glenohumeral arthrosis. Am J Sports Med. 2010 Dec;38(12):2558-72.
Nugteren, K. van & Winkel, D. (2009). Onderzoek en behandeling van artrose en artritis. Houten: Bohn Stafleu van Loghum.
Verhaar, J.A.N. & Linden, A.J. van der (2003). Orthopedie. Houten: Bohn Stafleu van Loghum.
Winters, J.C., Windt, D.A.W.M. van der, Spinnewijn, W.E.M., Jongh, A.C. de, Heijden, G.J.M.G. van der, Buis, P.A.J., Boeke, A.J.P, Feleus, A. & Geraets, J.J.X.R. (2008). NHG-standaard. Schouderklachten. Tweede herziening. Huisarts Wet. 2008; 51(11):555-65.

shoulder osteoarthrosis arthrosis x ray
shoulder osteoarthrosis arthrosis

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