4 Corner Fusion


  • Osteoarthritis in the wrist joint between the radius and the scaphoid
  • Pain and Stiffness is felt in the wrist.


  • Usually results following a scaphoid injury that hasn’t healed properly or scapho-lunate ligament injury.


  • X-rays will usually confirm the diagnosis.
  • A CT or MRI may be required to look at the joint surfaces of the other carpal bones.


  • Operation – Day stay or overnight stay.
  • General anaesthetic with arm block.
  • Removal of the arthritic scaphoid bone.
  • Fusion of the remaining carpal bones with either staples or spider plate and local bone graft.
  • Occasionally bone graft from the hip is required.

Potential Complications

  • Infection, Haematoma, stiffness.
  • Delayed or non union of carpal bones.
  • CRPS (exaggerated pain response from the nerves).

Post-Operative Care

  • Analgesia, Elevation in sling
  • Back slab for 2 weeks then either cast or splint for four to six weeks till carpus unites
University Of Auckland Auckland Born Joint Surgery Fracs NZOA  University Of Auckland Auckland Born Joint Surgery Fracs