title: CORR Insights®: "Knuckle Cracking": Can Blinded Observers Detect Changes with Physical Examination and Sonography?
authors.affiliation: The J. Vernon Luck, Sr MD Orthopaedic Research Center, Orthopaedic Institute for Children, 403 West Adams Blvd., Los Angeles, CA, 90007, USA. Edward.Ebramzadeh@UCLA.edu.
authors.forename: Edward
authors.initials: E
authors.lastname: Ebramzadeh
mesh_terms: D005384:Finger Joint; D006801:Humans; D008662:Metacarpophalangeal Joint; D010808:Physical Examination; D014463:Ultrasonography