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J Wrist Surg 2014; 03(02): 091-097
DOI: 10.1055/s-0034-1375965
Special Focus Section: Ulnar Shortening Osteotomy
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

The AO Ulnar Shortening Osteotomy System Indications and Surgical Technique

Ladislav Nagy
1   AO Hand Expert Group (HAEG), Davos, Switzerland
2   Department of Orthopedics, University of Zürich, Balgrist, Zürich, Switzerland
,
Anna Jungwirth-Weinberger
2   Department of Orthopedics, University of Zürich, Balgrist, Zürich, Switzerland
,
Douglas Campbell
1   AO Hand Expert Group (HAEG), Davos, Switzerland
,
Juan González del Pino
1   AO Hand Expert Group (HAEG), Davos, Switzerland
› Author Affiliations
Further Information

Publication History

Publication Date:
17 May 2014 (online)

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Abstract

Ulnar shortening osteotomy is an established and frequently performed surgical procedure in wrist surgery. The technical aspects of the procedure have continued to develop in recent years, with instruments and implants being developed specifically for this purpose. Ulnar shortening osteotomy is required for different clinical indications and situations. These varying indications demand different amounts of shortening, but all must be precise and accurate. Controversy exists as to how this can best be achieved in terms of the location for osteotomy, the surgical approach and geometry of the osteotomy, as well as which implant to use to provide optimal stability. The goal of all techniques (besides successfully resolving the underlying problem) is to achieve reliable and rapid bone union without compromising early functional rehabilitation and also to avoid hardware complications. The AO Hand Expert Group has developed a specialized instrumentation system with dedicated and specifically designed implants to ensure exact and accurate cutting with precise and rigid stabilization of the ulna. The matched drill guides and double-blade saws allow accurate completion of the planned amount of shortening together with precise coaptation of the osteotomy fragments. The specific ulnar osteotomy LCP (locking compression plate) combines maximum stability with minimum bulk and soft tissue irritation. The features of the implant, its surgical technique, and early results are described.

Keywords

ulnar shortening - osteotomy - ulnocarpal impaction
 

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