J Korean Soc Surg Hand.  2010 Dec;15(4):164-168.

Modified Extension Block Technique Using Conjoined Kirschner Wires for Bony Mallet Fingers

• Park HC
• Park HS
• Ahn SC
• Kim SS
• Chang J

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.

Keyword

Bony mallet finger; Modified extension block technique; Conjoined Kirschner wires

MeSH Terms

Bone Wires
Congenital Abnormalities
Fingers
Follow-Up Studies
Humans
Joints
Nails
Range of Motion, Articular