plication. this surgical technique aims to improve druj stability by shortening the joint capsule or the extensor retinaculum. it is mostly used for minor druj instability and is less invasive compared to a complete rul reconstruction. shortening of the ulnar bone. patients with a positive ulnar variance are more susceptible to tfcc damage. shortening the ulnar bone may help relieve the excess pressure to the tfcc and prevent further degeneration.