Frozen shoulder, also known as adhesive capsulitis, can feel like your shoulder has been locked in place. The stiffness, pain, and loss of motion can severely affect your daily life—making it hard to dress, sleep, or even lift a cup of coffee. If physical therapy and anti-inflammatory medications haven’t brought relief, shoulder hydrodilatation may be an option worth considering.
What is Frozen Shoulder?
Frozen shoulder occurs when the capsule surrounding the shoulder joint thickens and tightens, restricting movement and causing chronic pain. This condition typically progresses through three stages:
- Freezing stage – Shoulder becomes increasingly painful and stiff.
- Frozen stage – Pain may improve, but stiffness remains.
- Thawing stage – Shoulder slowly regains movement.
The entire cycle can take months or even years to resolve without intervention.
What is Shoulder Hydrodilatation?
Shoulder hydrodilatation (also called capsular distension) is a minimally invasive procedure designed to stretch and loosen the joint capsule of the shoulder. It involves injecting a sterile fluid—a mix of saline and local anesthetic—into the joint under image guidance (ultrasound)
The goal is to gently expand the tight joint capsule, reduce inflammation, and restore movement by physically breaking up the adhesions that cause restriction.
How is the Procedure Performed?
- Imaging guidance: The procedure is done under ultrasound or fluoroscopy to ensure accuracy.
- Injection: A needle is inserted into the shoulder joint, and a fluid mixture is injected to distend the capsule.
- Stretching: The fluid pressure stretches the tight capsule from within, relieving stiffness.
- Follow-up therapy: Patients are encouraged to start gentle physical therapy soon after the procedure to maintain and improve mobility.
The procedure typically takes less than 30 minutes and is performed on an outpatient basis.
What are the Benefits?
- Improved range of motion – Many patients experience a noticeable increase in shoulder mobility shortly after the procedure.
- Minimally invasive – No surgery or general anesthesia required.
- Quick recovery – Most patients can resume physical therapy the same or next day.
Who is a Good Candidate?
Shoulder hydrodilatation is usually recommended for people with moderate to severe frozen shoulder who have not responded to conservative treatments like:
- NSAIDs (non-steroidal anti-inflammatory drugs)
- Corticosteroid injections alone
- Physical therapy
It is also beneficial for patients who are unable to tolerate surgery or want to avoid a more invasive procedure.
Are There Any Risks?
Shoulder hydrodilatation is generally safe, but like any medical procedure, it carries some potential risks, including:
- Temporary soreness or swelling at the injection site
- Mild bleeding or bruising
- Very rare risk of infection or allergic reaction
These are uncommon, and the benefits often outweigh the risks for patients with limited shoulder function.
What Happens After the Procedure?
Patients are usually advised to begin gentle movement and stretching exercises immediately after hydrodilatation to take advantage of the increased capsule flexibility. A structured physical therapy plan can help:
- Maintain improved range of motion
- Strengthen the shoulder muscles
- Prevent recurrence of stiffness
If frozen shoulder has sidelined your lifestyle and physical therapy alone isn’t cutting it, shoulder hydrodilatation may offer a powerful boost in your recovery journey. This safe, image-guided procedure is designed to unlock your shoulder, reduce pain, and accelerate your return to normal function.
Talk to your musculoskeletal specialist to see if hydrodilatation is right for you. With the right treatment approach, freedom of movement is within reach.
