title: Knee locking due to a single gouty tophus.
abstract: Knee locking is a highly incapacitating condition attributable to mechanical or functional factors. Pain, mostly of capsuloligamentous or intraosseous origin, is the cause of functional locking. Meniscal injuries are the most frequent arthroscopic finding in the locked knee, due to mechanical factors. We describe a patient experiencing locking during extension whose history and examination suggested a tear of the anterior horn of the lateral meniscus of the right knee; a diagnostic/therapeutic arthroscopy revealed an intraarticular gouty tophus growing from the anterior horn of the lateral meniscus.
authors.affiliation: University Hospital Virgen de la Victoria, Malaga, Spain. espejoreina@terra.es
authors.forename: Alejandro
authors.initials: A
authors.lastname: Espejo-Baena
authors.forename: Stephan Meschian
authors.initials: SM
authors.lastname: Coretti
authors.forename: Jose Miguel Serrano
authors.initials: JM
authors.lastname: Fernandez
authors.forename: Jose Maria
authors.initials: JM
authors.lastname: Garcia-Herrera
authors.forename: Joaquina Ruiz
authors.initials: JR
authors.lastname: Del Pino
mesh_terms: D006073:Gout / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology*; D015745:Granuloma, Foreign-Body / Q000378:metabolism / Q000473:pathology; D006801:Humans; D004204:Joint Dislocations / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology*; D007719:Knee Joint / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology*; D008297:Male; D008592:Menisci, Tibial / Q000378:metabolism / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D016059:Range of Motion, Articular; D013582:Synovial Fluid / Q000378:metabolism; D016896:Treatment Outcome; D014527:Uric Acid / Q000378:metabolism
chemical_list: D014527:Uric Acid