Hydrodilatation, also known as capsular distension, is a fast, highly effective, minimally invasive treatment for Frozen Shoulder (Adhesive Capsulitis). It works by gently stretching the shoulder joint capsule with a precise mixture of fluid, saline and steroid, helping to reduce pain and rapidly improve movement.
At our Physiotherapy clinic in Clifton, the procedure is performed by an experienced Extended Scope Musculoskeletal Physiotherapist using real-time ultrasound guidance to ensure accuracy, comfort, and the best possible outcome.
Frozen Shoulder occurs when the capsule surrounding the shoulder joint becomes inflamed, thickened, and tight. This leads to:
Hydrodilatation works by injecting a sterile solution (saline, local anaesthetic, and often a small dose of steroid) directly into the joint capsule under ultrasound guidance. As the fluid gently expands the capsule, it reduces inflammation and pain, helps break down adhesions, restores space within the joint, and improves mobility.
Many patients notice reduced pain within 24–72 hours, followed by better movement within a few days. Improvement typically continues over 6–8 weeks, especially when combined with guided physiotherapy, this combination produces the strongest long-term results.
Hydrodilatation is an excellent option if you are experiencing:
Frozen Shoulder (early or established stages)
Persistent stiffness after shoulder injury or surgery
Shoulder pain that’s not improving with physiotherapy alone
Difficulty sleeping due to shoulder discomfort
You do not need a GP referral — our Physiotherapists can assess you and confirm suitability during your appointment. Book online here or if you have any questions get in touch by email or phone.
Rapid reduction in pain
Improved shoulder movement
Minimally invasive
Safe and well-tolerated
Performed under ultrasound for maximum accuracy
Suitable alternative to steroid-only injections
Helps avoid or delay surgery
Research shows hydrodilatation offers superior outcomes compared to steroid injections alone, especially in the early and frozen stages of Adhesive Capsulitis.
Hydrodilatation (ultrasound-guided) £350. Your appointment typically lasts around 30 minutes.
We begin with an ultrasound scan and clinical assessment to confirm the diagnosis and identify the correct injection site.
Under continuous ultrasound guidance, a fine needle is positioned accurately inside the shoulder joint.
A controlled amount of fluid is gently injected to stretch the capsule. You may feel pressure or tightness, this is normal and lasts only a few seconds.
You’ll receive personalised physiotherapy advice immediately after the procedure to help maintain the increased range of movement. Most patients return to normal activities the same day. We recommend on-going physiotherapy post Hydrodilatation as this has the best long-term results.