J Korean Fract Soc.  2005 Jan;18(1):17-21. 10.12671/jkfs.2005.18.1.17.

The Usefulness of Blocking Screw in Intramedullary Nail on Proximal Tibial Fracture

• Yang JY
• Lee JK
• Kim YM
• Hong CH
• Kim KC
• Ahn SH

• KMID: 2184011
• DOI: http://doi.org/10.12671/jkfs.2005.18.1.17

Abstract

PURPOSE: To evaluate the effectiveness of a blocking screw in intramedullary nailing at the tibia proximal shaft fracture.
MATERIALS AND METHODS
63 tibia proximal shaft fractures from January 2000 to December 2002 treated with only intramedullary nailing were referred to as group I, and 8 fractures from January 2003 to December 2003 treated with both intramedullary nailing and the blocking screw were referred to as group II. Retrospective studies were done for group I and II. The incidence of nonunion and the postoperative angular alignments were compared. Malalignment was defined as an angle of 5 degrees anteroposteriorly or mediolaterally.
RESULTS
There were 7 nonunion (11%) in group I in compare with none in group II. There were 21 angular malalignments (33%) in group I and 1 in group II (12%) and most of them had valgus deformity or anterior anglulation. No complications were directly due to the use of the Blocking screw.
CONCLUSION
The technique of the blocking screw used to be one of the option for proximal tibial nailing at tibial proximal shaft fracture helps to overcome angular malalignments of bones.

Keyword

Tibia proximal shaft fracture; Treatment; Blocking screw

MeSH Terms

Congenital Abnormalities
Fracture Fixation, Intramedullary
Incidence
Retrospective Studies
Tibia
Tibial Fractures*