What to do if frozen shoulder rehabilitation doesn't seem to work? The next step if night pain persists for more than half a year

The most despairing part of having a frozen shoulder is not the daytime, but the night.

Sleeping on your side hurts so much that you have to sit up, and when you switch sides and compress it again, you wake up once more. After half a year of physical therapy, including hot compresses, electrotherapy, stretching, and acupotomy, you feel that your range of motion is slightly better during the day, but the pain at night continues. A common feedback from patients in the outpatient clinic is: "It's not that I haven't received treatment, but that after treating it for a long time, the improvement has completely stalled."

This article explains what happens after improvement stops.
For a basic explanation of frozen shoulder, please refer to the Frozen Shoulder Topic article on this site.

Why does frozen shoulder last so long?

Because the course of a frozen shoulder is naturally long.

The formal name for frozen shoulder is adhesive capsulitis, in which the joint capsule outside the shoulder joint becomes inflamed, thickened, and fibrotic, making the joint feel as if it is wrapped in a layer of shrunken film. Clinically, it is divided into three stages: the freezing stage is the most painful, the frozen stage is the stiffest, and the thawing stage slowly loosens up. It often takes one to three years to go through all three stages.

Therefore, "no progress after long-term physical therapy" is partly due to the rhythm of the disease itself, and is not entirely because the treatment is ineffective. However, this statement is based on the premise that the diagnosis is correct.

Still in pain after long-term physical therapy? First step: Confirm if it is frozen shoulder

This step is very often overlooked.

Shoulder pain combined with the inability to lift the arm high is not necessarily frozen shoulder. The pain of a rotator cuff tear is very similar, but it involves a torn tendon, and continuous stretching will make it worse; shoulder impingement syndrome hurts at specific angles, but feels okay at other angles; referred pain from cervical nerve root compression has its pain point in the shoulder, but its source is in the neck. The diagnostic directions for these three types of pain are all different from frozen shoulder.

In addition to physical examination, imaging tests such as ultrasound or MRI need to be included for differentiation, which can diagnose the actual state of the tendon. If accompanied by hand numbness, the cervical spine segment must be confirmed first regarding the neurological examination path. If there is no progress after half a year of physical therapy, instead of doing the same treatment for another half year, it is better to have a doctor examine it thoroughly.

What does it mean if night pain persists after half a year?

This indicates that the condition inside the joint capsule may not be simple inflammation.

Chronically inflamed joint capsules can develop abnormally proliferating microvessels, accompanied by newborn nerve endings that continuously send pain signals. Night pain is precisely one of its common manifestations. This is also why some people "feel the injection is effective for a while, and then the pain returns": steroids suppress inflammation, but these vascular and neural structures are outside their scope of action.

At this stage, the question to ask is not "how much longer is physical therapy needed," but "from which layer is the pain originating."

What are the next steps? How should they be ordered?

After the diagnosis of frozen shoulder is confirmed, the general order is as follows.

First, perform image-guided injection therapy. Ultrasound-guided intra-articular injection or joint capsule hydrodilatation (injecting liquid medicine into the joint capsule to stretch the adhered space) are two common next steps for refractory frozen shoulder, and are also the treatment paths currently adopted first by most clinics.

When treatment feedback is limited, the layer of regenerative injections is then evaluated. Options evaluable at Shiyi Clinic include PRP, amniotic membrane matrix, BMAC (Bone Marrow Aspirate Concentrate), and PLT (Platelet Lyophilized Treatment), all aimed at providing the components needed for tissue repair and assisting the inflamed and fibrotic joint capsule environment. Which type to use and how many injections to perform are determined by the doctor based on imaging, medical condition, and indications.

Another layer of pain control is suprascapular nerve block. This nerve is responsible for most of the sensation in the shoulder joint. Treating it under image guidance helps control pain. Shiyi's nerve blocks are performed by Director Lu Bing-sheng.

The next layer is TAME (Transcatheter Arterial Microembolization). TAME addresses the abnormally proliferating microvessels explained earlier.
There are three conditions for evaluation: pain lasting for more than half a year, limited response to conservative treatments such as injections, and imaging showing that the pain source is related to abnormal vascular proliferation. Only when all three are met will the evaluation begin; in other words, not every refractory frozen shoulder requires TAME. Whether to use ultrasound-guided s-TAME or catheter-based C-TAME is evaluated and determined by the doctor based on imaging. For the differences between the two, please see What is the difference between C-TAME and s-TAME?. For the overall treatment sequence and how each layer connects, please refer to What are the treatment choices for chronic pain?.

Surgery (arthroscopic capsular release) is reserved for cases where all of the above have been tried and stiffness still seriously affects daily life, and is evaluated by an orthopedic surgeon.

What can you do at home?

Maintain range of motion, but do not force stretches.

Gentle range-of-motion exercises like the pendulum exercise and wall climbing exercise can be done. The principle is to stretch until it feels tight, not to severe pain; forcing the angle open will only irritate the joint capsule. Please make sure to have a physical therapist confirm the movements and intensity first. When sleeping, keeping the painful side up and placing a pillow under the arm can make night time more comfortable for some people.

One more thing: Do not completely stop moving because of pain. Completely remaining immobile will make the frozen stage even stiffer.

Interested in an evaluation?

If your shoulder pain has lasted for more than half a year, and you have tried physical therapy and injections but still wake up from pain at night, you can first undergo a medical assessment via LINE. Please bring past imaging data (X-rays, ultrasound, MRI) and treatment records to your appointment, including how many injections you have received, what was injected, and your response and feelings at that time.
Shiyi Clinic is located at 2F-1, No. 40, Sec. 2, Heping E. Rd., Da’an Dist., Taipei City. It operates entirely on an appointment basis. Phone: (02) 2366-0186.

Written by: Dr. Lu Bing-sheng

Last updated: August 6, 2026

Disclaimer: This article is for health education purposes and cannot replace professional diagnosis and treatment advice. Whether any treatment is suitable should be evaluated and decided by a physician.


Dr. Yuji Okuno's Microvascular Embolization Reference Material:
Okuno Y, Iwamoto W, Matsumura N, et al. Clinical outcomes of transcatheter arterial embolization for adhesive capsulitis resistant to conservative treatment. J Vasc Interv Radiol. 2017;28(2):161-167.e1. doi:10.1016/j.jvir.2016.09.028

Okuno Y, Oguro S, Iwamoto W, et al. Short-term results of transcatheter arterial embolization for abnormal neovessels in patients with adhesive capsulitis: a pilot study. J Shoulder Elbow Surg. 2014;23(9):e199-206. doi:10.1016/j.jse.2013.12.014