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Journal of Bone and Joint Surgery - British Volume, Vol 91-B, Issue 11, 1478-1481.
doi: 10.1302/0301-620X.91B11.22478  
Copyright © 2009 by British Editorial Society of Bone and Joint Surgery
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Two extension block Kirschner wire technique for mallet finger fractures

Y. H. Lee, MD, PhD, Assistant Professor, Orthopaedic Surgeon1; J. Y. Kim, MD, Assistant Professor, Orthopaedic Surgeon2; M. S. Chung, MD, PhD, Professor, Orthopaedic Surgeon1; G. H. Baek, MD, PhD, Professor, Orthopaedic Surgeon1; H. S. Gong, MD, PhD, Assistant Professor, Orthopaedic Surgeon1; and S. K. Lee, MD, Assistant Professor, Orthopaedic Surgeon3

1 Department of Orthopaedic Surgery, Seoul National University, College of Medicine, 28 Yeonkeon-dong, Chongro-gu, Seoul 110-744, Korea.
2 Department of Orthopaedic Surgery, Dongguk University College of Medicine Ilsan Hospital, 814 Siksadong, Donggu, Ilsan, Goyang, Korea.
3 Department of Orthopaedic Surgery, Eulji University, College of Medicine, 1306 Dunsan-dong, Seo-gu, Daejeon 302-799, Korea.

Correspondence should be sent to Dr J. Y. Kim; e-mail: bigjw{at}naver.com

We treated 32 displaced mallet finger fractures by a two extension block Kirschner-wire technique. The clinical and radiological outcomes were evaluated at a mean follow-up of 49 months (25 to 84). The mean joint surface involvement was 38.4% (33% to 50%) and 18 patients (56%) had accompanying joint subluxation.

All 32 fractures united with a mean time to union of 6.2 weeks (5.1 to 8.2). Congruent joint surfaces and anatomical reduction were seen in all cases. The mean flexion of the distal interphalangeal joints was 83.1° (75° to 90°) and the mean extension loss was 0.9° (0° to 7°). No digit had a prominent dorsal bump or a recurrent mallet deformity.

We believe that this technique, when properly applied, produces satisfactory results both clinically and radiologically.




eLetters:

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Mallet fracture of the digit
Joideep Phadnis, et al.
J Bone Joint Surg Br Online, 17 Dec 2009 [Full text]

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Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General