title: Safety and efficacy of microfocused ultrasound to lift, tighten, and smooth the buttocks.
abstract: BACKGROUND
  Microfocused ultrasound has been shown to lift and tighten lax eyebrows, submental, and neck skin.
  
  
  OBJECTIVE
  The aim of this study was to evaluate the safety and effectiveness of microfocused ultrasound to lift, tighten, and smooth the buttocks.
  
  
  METHODS
  Thirty-one subjects, with buttock skin laxity, were entered into the study. The right buttock was treated with microfocused ultrasound. Subjects were evaluated for up to 180 days for improvement in overall lifting and tightening of the buttock.
  
  
  RESULTS
  Among subjects evaluated at 180 days, 89.5% showed improvement. However, when asked, most subjects would not recommend treatment to family or friends.
  
  
  CONCLUSIONS
  Although microfocused ultrasound clearly can be used to safely lift, tighten, and smooth the buttocks, better subject selection and newer developed transducers may lead to greater overall acceptance of this technique.
authors.affiliation: *Department of Dermatology, Mount Sinai School of Medicine, New York, New York; †Skin Laser & Surgery Specialists of New York and New Jersey, New York, New York; ‡Scottsdale, Arizona.
authors.forename: David J
authors.initials: DJ
authors.lastname: Goldberg
authors.forename: Carl S
authors.initials: CS
authors.lastname: Hornfeldt
mesh_terms: D000328:Adult; D000368:Aged; D002081:Buttocks; D003357:Cosmetic Techniques; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D015595:Skin Aging; D016896:Treatment Outcome; D014464:Ultrasonic Therapy / Q000009:adverse effects / Q000379:methods*