In this report, we reviewed our results with single pin fixation for the mallet fractures with solar subluxation of the distal phalanx. We also reviewed the current surgical techniques for the treatment of mallet fracture.

1. Mallet fracture reduction:
Fragment vs. Phalanx
Amir R. Kachooei, MD
Ali Moradi, MD
Chaitanya S. Mudgal, MD

2. Introduction

3. Tension Wire Fixation
Jupiter 1987

4. ISHIGURO EXTENSION
BLOCK: Japan.1988

5. Compression
fixation pin: Japan
K. YAMANAKA and T. SASAKI. JHS.1999

6. External Fixation:
Turkey, JHS.2003

7. Open Reduction
Screw Fixation
S. C. KRONLAGE and D. FAUST. JHS. 2004

8. Single K-Wire
Compression
D. FRITZ. JHS. 2005

9. Umbrella Handle:
Italy, JHS.2006

10. Hook Plate
Singapore, JHS. 2007

11. Pull-out Wire
Zhang, China.2010

12. Methods

13. 16 y.o female after basketball injury

15. Wire in for 6 wks 2 month f/u

16. 2 month f/u

17. 3 month f/u

18. Results
Patients Data
Patient Age, y Sex Digit
Injury
Side
Injury
mechanism
Surgery
timing, d
Pin Size Splint
Pin
removed,
d
Pin site
Fragment
Size
Follow-up,
mo
flexion extension
1 47 M Small L Sport 8 0.045 Yes 56 redness 45% 3
2 17 M Small R Sport 56 0.045 Yes 47 OK 48% 8 full full
3 16 F Middle R Sport 47 0.045 Yes 46 OK 43% 3 full full
Data from Previous Study
1 44 F Small L Sport 5 0.045 Yes 38 OK Ave 52% 6 0 65
2 15 M Middle L Sport 22 0.045 Yes 43 OK Ave 52% 4 0 80
3 28 M Ring L Sport 56 0.045 Yes 44 OK Ave 52% 19 0 85

19. Conclusion
1. Closed reduction and IF with single K-
wire has satisfactory outcome.
2. Anatomic reduction is not necessary
for type IIb mallet fractures.
3. Joint subluxation should be addressed
when present.

20. Thank you