title: Hyponatraemia after orthopaedic surgery - a case of pituitary apoplexy.
abstract: We describe a case of profound hyponatraemia in a postoperative patient after total hip replacement caused by corticosteroid insufficiency due to a non-functioning pituitary macroadenoma diagnosed by dynamic endocrine tests and radiological imaging. Adopting a multidisciplinary approach, successful diagnosis and management lead to a complete recovery without any long-term sequelae.
authors.affiliation: Department of Orthopaedics, Derriford Hospital, Plymouth, UK.
authors.forename: Katharine
authors.initials: K
authors.lastname: Thomason
authors.forename: Kenneth
authors.initials: K
authors.lastname: Macleod
authors.forename: Keith S
authors.initials: KS
authors.lastname: Eyres