Use causal in a sentence. of a cause or causes. being or involving a cause. relating to cause and effect.
Causes of frozen shoulder. Frozen shoulder occurs when the sleeve that surrounds the shoulder joint, known as the capsule, becomes swollen and thickened. It's unclear why this happens. The shoulder is a ball and socket joint. The end of your upper arm bone (humerus) sits in contact with the socket of your shoulder blade (scapula).
On occasion, a persistent frozen shoulder can be manipulated while the patient is asleep in the operating room. The natural history of frozen shoulder is that it will burn out over time, though this may take 1-1.5 years.