This condition may cause pain and stiffness in the shoulder due to inflammation of the capsule around the shoulder joint. Symptoms may take up to 2 years to fully present. Physiotherapy and cortisone or local anaesthetic injections can be offered to help regain movement and reduce pain. Injection of water into the shoulder joint under ultrasound guidance (hydrodilatation) may also be helpful in relieving symptoms. Surgery is beneficial in helping to reduce pain and restore movement. This may involve manipulating the shoulder under an anaesthetic or keyhole (arthroscopic) surgery in order to divide the capsule (sack) of the shoulder from within in a controlled manner.