What is a frozen shoulder?
A frozen shoulder is a shoulder joint with significant loss of its range of motion in all directions. The range of motion is limited not only when the patient attempts motion, but also when the doctor attempts to move the joint fully while the patient relaxes. A frozen shoulder is also referred to as adhesive capsulitis.
What causes a frozen shoulder?
Frozen shoulder is the result of inflammation, scarring, thickening and shrinkage of the capsule that surrounds the normal shoulder joint. Any injury to the shoulder can lead to frozen shoulder, including tendinitis, bursitis, and rotator cuff injury. Frozen shoulders occur more frequently in patients with diabetes, chronic inflammatory arthritis of the shoulder, or after chest or breast surgery. Long-term immobility of the shoulder joint can put persons at risk to develop a frozen shoulder.
How is a frozen shoulder diagnosed?
A frozen shoulder is suggested during examination when the shoulder range of motion is significantly limited, with either the patient or the examiner attempting the movement. Underlying diseases involving the shoulder can be diagnosed with the history, examination, blood testing, and x-ray examination of the shoulder.
If necessary, the diagnosis can be confirmed when an x-ray contrast dye is injected into the shoulder joint to demonstrate the characteristic shrunken shoulder capsule of a frozen shoulder. This x-ray test is called arthrography. The tissues of the shoulder can also be evaluated with an
Frozen shoulder is the result of scarring, thickening, and shrinkage of the joint capsule.
Any injury to the shoulder can lead to frozen shoulder.
A frozen shoulder is usually diagnosed during an examination.
A frozen shoulder usually requires aggressive treatment.
