See the following topic Torticollis

Also see Torticollis Kids

For more exercise resources see Exercise HQ

I would not recommend the use of ultrasound for Wikipedia reference-linktorticollis. Infact, I would strongly discourage the ultrasound use in case of torticollis. See any good textbook of Electrotherapy for detail of contra indications.

For more exercise resources see Therapeutic Exercise Foundation and Techniques Third edition By Carolyn Kisner & Lynn Allen Colby and many more good textbook in this regard.

For detail of Surgcal information see good textbooks on orthopaedic and/or paediatric Surgery.

These are

Campbell's Operative Orthopaedics. 9th ed. St Louis, Mo: Mosby-Year Book.

Turek's Orthopaedics: Principles and Their Application. 5th ed. Philadelphia, Pa: Lippincott-Raven.

Apley's A System of Orthopaedics and fractures 8th edition by Louise Solomon, David J. Warwick and Selvadurai Nayagam.

Data Trace Publishing Orthopaedics

Adult-onset idiopathic torticollis

Posttraumatic painful torticollis

Idiopathic muscular torticollis in infants