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Journal of the Korean Society for Surgery of the Hand 2010;15(4):164-168.
Published online December 1, 2010.
Modified Extension Block Technique Using Conjoined Kirschner Wires for Bony Mallet Fingers
Hyun Chul Park, Hyun Sik Park, Sang Cheon Ahn, Sang Soo Kim, Jin Chang
1Department of Orthopaedic Surgery, Microhospital, Seoul, Korea. haddal12345@naver.com
2Department of Orthopaedic Surgery, Woori General Hospital, Pocheon, Korea.
Abstract
Purpose
To analyze the clinical results of the modified extension block fixation method using conjoined K-wires for bony mallet fractures. MATERIALS AND METHODS: From March 2006 to March 2009, we performed conjoined K-wire fixation as a modification of extension block technique in 9 patients with a bony mallet finger. After the average follow-up of 4.8 months, range of motion, pain, nail deformity, and bony union were evaluated.

Results
The average range of motion was 3.3degrees (range, 0-20degrees)of extension lag and 76.7degrees (range, 45-90degrees) of flexion. Bony union was obtained in all patients. No nail deformity was observed. One patient complained of distal interphalangeal joint pain.

Conclusion
The extension block fixation method using conjoined K-wires can be an acceptable treatment option which provides stable fixation in bony mallet fractures.
 


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