Frozen Shoulder (Adhesive Capsulitis) Hydro-dilatation Procedure
- Paul Williamson

- Oct 27, 2025
- 2 min read
Updated: Jan 19
Rehabilitation Guide

The hydro-dilatation injection is a procedure used to treat frozen shoulder by gently stretching the tight joint capsule with a mixture of fluid. This helps reduce pain, loosen stiffness, and create more space inside the shoulder joint so it can move more freely. Many patients notice improved mobility soon after the procedure, and a structured rehabilitation program is essential to keep those gains and restore normal shoulder function.
Following your Hydro-dilatation procedure we have created a 12 week guide to help you return to normal function. Please feel free to use this outline in consultation with your own coach or physiotherapist to help you safely return back to your best. Early, frequent movement and progressive strengthening are essential to maintain post-procedure movement gains.
Rehabilitation Exercise Overview
Phase One - Recovery /Early Motion
In this early phase, the goal is to keep the improved movement gained from the injection by gently moving the shoulder, calming inflammation, and preventing the capsule from tightening again.
Phase Two - Restore Motion / Progressive Strengthening
During this phase, we focus on gradually increasing shoulder motion and beginning controlled strengthening, helping the tissues adapt to stretching while supporting the joint with early muscle activation.
Phase Three - Maintain Motion / Functional Strengthening
Here, we work on keeping your range of motion while building strength that supports everyday tasks, allowing the shoulder to tolerate more load without slipping back into stiffness.
Phase Four - Functional & Sport Integration
The final phase aims to restore near-normal shoulder movement, confidence, and strength so you can return to daily activities and gradually progress back to work demands, hobbies, or sports.
Outcome Measures
Strength Symmetry (Isometric External Rotation Strength)
Motion Symmetry
Pain
Phase One - Recovery / Early Motion
In this early phase, the goal is to keep the improved movement gained from the injection by gently moving the shoulder, calming inflammation, and preventing the capsule from tightening again.
Weeks 1-3
Maintain motion gained from hydro-dilatation
Control pain
Prevent re-stiffening
Prescription - 4 x Daily

Pain <4/10 for all exercises at this stage
Phase Two - Restore Motion / Progressive Strengthening
During this phase, we focus on gradually increasing shoulder motion and beginning controlled strengthening, helping the tissues adapt to stretching while supporting the joint with early muscle activation.
Weeks 4-6
Restore functional ROM
Initiate strengthening
Physiotherapy - Manual Therapy
Prescription - 1-2 x Daily Motion

Prescription - 3 x Per Week Strengthening

Phase Three - Maintain Motion / Functional Strength
Here, we work on keeping your range of motion while building strength that supports everyday tasks, allowing the shoulder to tolerate more load without slipping back into stiffness.
Week 7-9
Improve dynamic control
Overhead function
Physiotherapy - Manual Therapy
Prescription - Daily Motion

Prescription - 3 x Per Week Strengthening

Phase Four - Return to ADL's & Sport
The final phase aims to restore near-normal shoulder movement, confidence, and strength so you can return to daily activities and gradually progress back to work demands, hobbies, or sports.
Week 10-12
Achieve pre-injury ROM
Return to normal activities
Achieve sufficient strength for ADLs/Sport
Prescription - Motion 2-3 x per week

Prescription - 2 x Per Week
Maintenance Strength

Criteria for discharge:
Pain <2/10
Symmetrical AROM (≥90% of contralateral side)
Symmetrical isometric external rotation strength
Functional performance restored


