title: Proximal junctional kyphosis and proximal junctional failure.
abstract: Proximal junctional failure (PJF) should be distinguished from proximal junctional kyphosis, which is a recurrent deformity with limited clinical impact. PJF includes mechanical failure, and is a significant complication following adult spinal deformity surgery with potential for neurologic injury and increased need for surgical revision. Risk factors for PJF include age, severity of sagittal plane deformity, and extent of operative sagittal plane realignment. Techniques for avoiding PJF will likely require refinements in both perioperative and surgical strategies.
authors.affiliation: Department of Orthopaedic Surgery, Oregon Health and Science University, Portland, OR 97239, USA. hartro@ohsu.edu
authors.forename: Robert A
authors.initials: RA
authors.lastname: Hart
authors.forename: Ian
authors.initials: I
authors.lastname: McCarthy
authors.forename: Christopher P
authors.initials: CP
authors.lastname: Ames
authors.forename: Christopher I
authors.initials: CI
authors.lastname: Shaffrey
authors.forename: David Kojo
authors.initials: DK
authors.lastname: Hamilton
authors.forename: Richard
authors.initials: R
authors.lastname: Hostin
mesh_terms: D001696:Biomechanical Phenomena; D006801:Humans; D007738:Kyphosis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000601:surgery*; D019637:Orthopedic Procedures / Q000379:methods*; D010347:Patient Care Planning; D011859:Radiography; D012008:Recurrence; D012307:Risk Factors