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Two extension block Kirschner wire technique for mallet finger fractures
1Department of Orthopaedic Surgery, Seoul National University, College of Medicine, 28 Yeonkeon-dong, Chongro-gu, Seoul 110-744, Korea.
The Journal of Bone and Joint Surgery. British Volume
|November 3, 2009
Summary
The two extension block Kirschner-wire technique effectively treats displaced mallet finger fractures, achieving excellent bone union and joint stability. This method results in satisfactory clinical and radiological outcomes for patients with mallet finger injuries.
Area of Science:
- Orthopedics
- Hand Surgery
- Traumatology
Background:
- Displaced mallet finger fractures often involve significant joint surface comminution and subluxation.
- Achieving anatomical reduction and stable fixation is crucial for optimal functional recovery.
Purpose of the Study:
- To evaluate the clinical and radiological outcomes of treating displaced mallet finger fractures using a two extension block Kirschner-wire technique.
Main Methods:
- 32 patients with displaced mallet finger fractures were treated with a two extension block Kirschner-wire technique.
- Outcomes were assessed clinically and radiologically at a mean follow-up of 49 months.
Main Results:
- All 32 fractures achieved union within a mean of 6.2 weeks.
- Excellent joint surface congruency and anatomical reduction were observed in all cases.
- Mean distal interphalangeal joint flexion was 83.1 degrees with minimal extension loss (0.9 degrees).
Conclusions:
- The two extension block Kirschner-wire technique provides a reliable and effective method for treating displaced mallet finger fractures.
- This technique leads to satisfactory functional and radiological results, with no reported dorsal bumps or recurrent deformities.
