Pseudoarthrosis (differential)

Last revised by Ali Hajihashemi on 18 Jan 2023

A pseudoarthrosis (plural: pseudoarthroses) (a.k.a. false joint) is a mobile fracture non-union.


A fibrous, pseudosynovial capsule forms around the non-union and viscous fluid fills the site that may simulate synovial fluid.


Common post-traumatic locations include:

  • scaphoid waist

  • humeral shaft

  • clavicular shaft

  • distal tibial shaft

  • talar neck

See also

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