Adhesive Capsulitis (AC) is a real pain, and if you have it or have had it, you know what I mean. First, lets start with a technical definition from the first article linked below. ”Adhesive capsulitis is a syndrome defined in its purest sense as idiopathic painful restriction of shoulder movement that results in global restriction of the glenohumeral joint.” So, in layman’s terms, what you have is a painful shoulder that is very difficult to move in all directions with no known cause of injury. Many times AC is also called “frozen shoulder”, but I’ll stick with the more technical and anatomically correct name.
There are generally two classifications of AC. Primary is the version above, with no known cause of injury, the secondary version is recognized to be caused by some prior injury that has brought on the AC (rotator cuff tear, tendonitis, bursitis). There are other factors that seem to influence the onset of AC. This article suggests that as many as 40% of diabetics may experience AC at some point in their life and that up to 16 % may develop it in both shoulders.
AC generally resolves in 1-2 years and goes through three phases. First is the “painful” phase that lasts anywhere from 2-8 months and is characterized by (you guessed it) pain and a general decrease in range of motion (ROM). The second phase is the “adhesive” phase, and though less painful, is characterized by even more decrease in ROM, lasting 4-6 months. The last stage is the “recovery” stage and is pretty self-explanatory. This is when ROM gradually is restored and the pain continues to decrease. Most people will regain all or most of their ROM, though some (approx 10% or so) may have permanent restrictions in their motion though not enough to be classified as a disability.
For effective treatment, it is imperitive that AC is diagnosed early. Physical therapy can play a great role in maintaining ROM and keeping pain levels down. Ultrasound is sometimes used as research shows it can help increase soft tissue extensibility. Iontophoresis can help to deliver anti-inflammatory medication to irritated tissues. TENS units can help to keep pain levels down so that medication isn’t overused and making sleep possible. Passive range of motion by your PT will help to keep as much motion as possible, though it is important to note that it can be quite painful, especially in the early stages.
More serious treatment options are manipulation under anesthesia, where the surgeon forces your arm through the full motion, and arthroscopic surgery to release the tightened capsule. Both are usually only reserved for cases where conservative treatment has failed.
There is hope for those suffering with AC. It is worth restating that this can be an incredibly painful condition, but there is hope. PT won’t be comfortable, but shouldn’t be a torture session either. Be open with your therapist and understand that there is no quick fix for AC.
Here’s the article I quote and refer to the most. Thorough and technical - http://www.aafp.org/afp/990401ap/1843.html
Here’s an article that’s a little more concise, but still kind of technical - http://orthoinfo.aaos.org/topic.cfm?topic=a00071
The Wikipedia article - http://en.wikipedia.org/wiki/Adhesive_capsulitis_of_shoulder