What is SI joint fusion?
The sacroiliac joints connect the sacrum at the base of the spine to the pelvic bones. Fusion aims to stabilize a painful joint and allow bone to grow across it. The procedure may use implants, bone graft or both, depending on the technique.
Who may be considered?
It may be considered when SI joint pain remains limiting despite appropriate nonsurgical treatment. The evaluation may include examination, imaging and a diagnostic injection. Other causes of low back, hip and buttock pain need to be considered.
What to expect
The approach and anesthesia plan are individualized. Recovery may include temporary limits on weight-bearing, a walking aid and rehabilitation. Follow the treating clinician’s instructions for activity and follow-up while the joint heals.
Benefits and considerations
The goal is to reduce pain related to SI joint movement and improve function. Relief is not guaranteed. Risks include infection, bleeding, nerve injury, implant problems, failure of the bones to fuse and persistent pain. Healing can take several months.