title: Occult localized osteonecrosis of the patella.
authors.affiliation: Hospital Arnau de Vilanova, Spain.
authors.forename: V
authors.initials: V
authors.lastname: Sanchis-Alfonso
authors.forename: E
authors.initials: E
authors.lastname: Rosello-Sastre
authors.forename: J
authors.initials: J
authors.lastname: Esquerdo
authors.forename: V
authors.initials: V
authors.lastname: Martinez-Sanjuan
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000209:etiology; D010020:Osteonecrosis / Q000175:diagnosis* / Q000601:surgery; D010146:Pain / Q000209:etiology; D010329:Patella / Q000473:pathology* / Q000601:surgery