Journal of Musculoskeletal Trauma

Original Articles

The Angulation as to the Location of the Lag Screw of Compression Hip Screw in the Intertrochanteric Fracture of the Hip: Sang Won Park, Kwang Jun Oh, Seung Yong Wang; J Korean Soc Fract 2002;15(1):15-20. Published online January 31, 2002; DOI: https://doi.org/10.12671/jksf.2002.15.1.15

Abstract PDF: PURPOSE
The purpose of this study was to evaluate the change of the angulation deformity according to apposition of medial cortex and sliding mechanism as to the location of the lag screw in the intertrochanteric fracture of the Korean femur which neck-shaft angle is relatively small .
MATERIALS AND METHODS
We selected the patients those angulation of femur neck-shaft was within 5 degree in comparison with normal side, and displacement of fracture fragment was within 4mm on the immediate post-operative radiograph. According to Evans classification, all patients were type I fracture. We classified the patients in two groups -stable medial cortex apposition(Group I) was 13 cases, and unstable no apposition(Group II) was 16 cases.
RESULTS
In the Group I, the varus-valgus angulation was average 3.3 degrees when lag screw was positioned at the middle of the femur neck, average 3.6 degrees when lag screw was positioned at the inferior to the femur neck. In the Group II, the varus-valgus angulation was average 6.1 degrees when lag screw was middle of the femur neck, average 1.5 degrees when lag screw was inferior to the femur neck.
CONCLUSION
There is no difference in angulation deformity when the lag screw is inferior or middle of femur neck if medial cortex is contacted, but the angulation deformity is less when the lag screw is inferior to femur neck if medial cortex is not contacted, in intertrochanteric fracture.

Angulation Deformity Following Interlocking Nailing for Treaeent of Tibia Fracture: Hong Jun Han, Jae Hoon Shin, Jeong Hyu Lee; J Korean Soc Fract 1996;9(4):1002-1008. Published online October 31, 1996; DOI: https://doi.org/10.12671/jksf.1996.9.4.1002

Abstract PDF: Intramedullary nailing is often the treatment of choice in the management of fractures in the tibial diaphysis. With the advent of interlocking nailing, the indication for nailing have expanded, recently. One of the most frequent but little discussed complication of tibial nailing is fracture malalignment leading to angular or rotational deformities. This retrospective study was undertaken to access the incidence of aneular malalignment after interlocking nailing for 210 tibiae(208 patients). The results obtained were as follows; 1. The incidence of angular malalignment was 12.4% 2. The incidence of angular malalignment was 15.8% in proximal one third, 4.1% in middle one third,20.7% in distal one third fractures. 3. The most frequent deformity was valgus angulation in distal one third fractures. 4. Angular deformity was developed more frequently in cases of unlearned nailing(18.9%) than reamed nailing(8.4%). 5. Angular deformity was developed more frequently in cases of double level fracture(22.2%) than single level fracture(11.5%).

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