Arch Hand Microsurg.  2019 Mar;24(1):56-62. 10.12790/ahm.2019.24.1.56.

Hypertrophic Delayed Union or Nonunion after Ulnar Shortening Osteotomy

  • 1Department of Orthopedic Surgery, Korea University Anam Hospital, Seoul, Korea.
  • 2Department of Orthopedic Surgery, Korea University Guro Hospital, Seoul, Korea.
  • 3Department of Orthopedic Surgery, Korea University Ansan Hospital, Seoul, Korea.


Ulnar shortening osteotomy is the most popular surgical technique for ulnar impaction syndrome and has a successful clinical results. However, delayed union and nonunion of the osteotomy site remain the most critical complications and conventionally, plate change and autogenous bone grafting had been performed for the treatment of delayed union and nonunion. The authors present 2 patients who had delayed union and nonunion after ulnar shortening osteotomy using 2.7 mm low profile ulnar shortening osteotomy system and can be treated with only additional mini plating.


Ulna; Osteotomy; Nonunion; Delayed union
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