title: Pseudoparalysis of the lower extremity in an infant.
abstract: We describe a case of septic arthritis of the knee in an afebrile, well-appearing four-month-old female. She had been evaluated previously for lower extremity disuse attributed to antecedent trauma. Her physical examination was remarkable only for limitation of extension of the affected leg at the knee. Emergency physicians should understand the physical examination findings suggesting joint effusion and the need to consider osteomyelitis/septic arthritis in children less than one year of age with pseudoparalysis.
authors.affiliation: Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA.
authors.forename: D J
authors.initials: DJ
authors.lastname: McLario
authors.forename: L J
authors.initials: LJ
authors.lastname: Burton
authors.forename: R W
authors.initials: RW
authors.lastname: Bruce
authors.forename: T J
authors.initials: TJ
authors.lastname: Whipple
authors.forename: H K
authors.initials: HK
authors.lastname: Simon
mesh_terms: D001170:Arthritis, Infectious / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007223:Infant; D007719:Knee Joint; D010243:Paralysis / Q000175:diagnosis / Q000209:etiology*; D013290:Streptococcal Infections / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D013292:Streptococcus agalactiae; D014947:Wounds and Injuries / Q000150:complications