Figure 2.

K-wire was inserted from the lateral surface of the ulnar shaft and passed only to the base of the coronoid process without entering the bone fragment (a). The K-wire was then advanced using Kocher (Ochsner) (b) or Sponge forceps (c) through the bone fragment (d). After confirming with arthroscopy that the K-wire passing through the bone fragment was long enough to be bent, the tip of the K-wire was bent (e), and the coronoid process bone fragment was fixed at the end of the bent part (f). The K-wire was then pulled in the direction of the entrance to firmly fix the bone fragment to the ulna (g).