Conversion heating - This involves the conversion of one energy form (eg, light, sound) into another (heat). Superficial heat is produced by heat lamps or radiant light bakers, with heat being transferred when the conveying medium (light energy) is converted to heat energy at the skin surface.
Surgery may be an option for Achilles tendinosis if other treatments, including physical therapy, ultrasound, massage and shockwave therapy, fail to bring pain relief. General anesthesia is commonly used. Regional anesthesia that numbs the leg may also be used.
Surgery for rotator cuff tear is usually performed under general anesthesia, where the patient is asleep. Sometimes a regional (or local) anesthetic is used to block the nerves leading to the arm. In that case, the patient is conscious but cannot feel pain.