Causes, Symptoms, and Treatment of Nonunion After Fusion
Nonunion after fusion, also called pseudarthrosis, occurs when a bone does not heal properly after a fusion procedure. Fusion (arthrodesis) is a surgery performed to join two or more bones in order to stabilize a joint or relieve pain. In some cases, however, the bones fail to fuse and instead form a “false joint,” leading to ongoing symptoms.
This condition can cause persistent pain, instability, and limited mobility in the affected area. Nonunion may result from factors such as inadequate immobilization, poor blood supply, infection, or excessive stress on the surgical site. While it is most common in the spine, it can also affect joints such as the ankle, wrist, or knee.
Treatment may involve revision surgery, bone grafting, or the use of specialized devices to stimulate bone healing. Early diagnosis and proper management are important to reduce pain, restore function, and improve outcomes.
