Orthopedic physiotherapists diagnose, manage, and treat disorders and injuries of the musculoskeletal system as well as rehabilitation after orthopedic surgery. This specialty of physiotherapy is most often found in the out-patient clinical setting. Orthopedic therapists are trained in the treatment of post operative joints, acute sports injuries, arthritis, and amputations. Joint mobilizations, strength training, hot/cold packs, and electrical stimulation (e.g., cryotherapy, iontophoresis, electrotherapy) are modalities often used to expedite recovery in the orthopedic setting. Additionally, an emerging treatment in this field is the use of sonography to guide treatments like muscle retraining. Those who have suffered injury or disease affecting the muscles, bones, ligaments, or tendons of the body will benefit from assessment by a physiotherapist specialized in orthopedics.