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T.A.C.’ Pin Fixation for Basal Ulnar Styloid Fractures Associated With Distal Radius Fractures

Shirakawa, Ken MD, PhD; Shirota, Masahiko MD, PhD

Techniques in Hand & Upper Extremity Surgery: September 2013 - Volume 17 - Issue 3 - p 158–161
doi: 10.1097/BTH.0b013e3182995824

Distal radius fractures often accompany ulnar styloid fractures. As basal ulnar styloid fractures sometimes result in symptomatic nonunion causing distal radioulnar joint instability, surgical intervention should be considered as a method of treatment. However, conventional methods of internal fixation for ulnar styloid involving tension band wiring and pinning often causes irritation of hardware, and required further surgery. We performed T.A.C.’ pin fixation for basal ulnar styloid fractures associated with distal radius fractures in 24 patients. X-rays showed union at an average of 6.8 weeks postoperatively in all but 1 case, which resulted in asymptomatic fibrous nonunion. Irritation from the hardware was recognized in 3 cases, but soon disappeared after recutting or removal of the pin. At the final follow-up, no symptoms involving ulnar wrist pain or distal radioulnar instability were noted. T.A.C.’ pin fixation for basal ulnar styloid is a useful method and rarely requires further surgery compared with conventional methods.

Department of Orthopaedic Surgery, Saitama Red Cross Hospital, Saitama-ken, Japan

Conflicts of Interest and Source of Funding: The authors report no conflicts of interest and no source of funding.

Address correspondence and reprint requests to Ken Shirakawa, MD, PhD, Department of Orthopaedic Surgery, Saitama Red Cross Hospital, 8-3-33 Kamiochiai, Chuo-ku, Saitama-shi, Saitama-ken 338-8553, Japan. E-mail:

© 2013 by Lippincott Williams & Wilkins