Results of the 2014 SRS Survey on PJK/PJF: A Report on Variation of Select SRS Member Practice Patterns, Treatment Indications, and Opinions on Classification Development.

Study Design: An electronic survey administered to Scoliosis Research Society membership.

Objective: To characterize surgeon views regarding proximal junctional kyphosis (PJK) and proximal junctional failure (PJF) management providing the framework in which a PJK/PJF classification system and treatment guidelines could be established.

Summary Of Background Data: PJK/PJF are common complications of adult spinal deformity surgery.

Proximal junctional kyphosis and failure after spinal deformity surgery: a systematic review of the literature as a background to classification development.

Study Design: Systematic review of literature.

Objective: To perform a comprehensive English language systematic literature review of proximal junctional kyphosis (PJK) and proximal junctional failure (PJF), concentrating on incidence, risk factors, health related quality of life impact, prevention strategy, and classification systems.

Summary Of Background Data: PJK and PJF are well described clinical pathologies and are a frequent cause of revision surgery.