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Updated: Mar 22, 2026
Treatment with Locking Intramedullary Nailing for Intertrochanteric Fracture of the Femur Utilizing a New Awl with a Distal Positioner
Published on: June 6, 2025
ENTRY POINT FOR THE ANTEGRADE FEMORAL INTRAMEDULLARY NAIL: A CADAVER STUDY
Pedro José Labronici1, Luiz Galeno2, Thiago Martins Teixeira2
1Doctor's degree in Medicine, Universidade Federal de São Paulo - Paulista School of Medicine; Head, Prof. Dr. Donato D'Angelo Orthopedics and Traumatology Clinic, Hospital Santa Teresa, Petrópolis, RJ, Brazil.
Objective:
To analyze the natural exit of the wire guides in major trochanter through retrograde femoral approach, in cadaver specimens.
Material And Method:
100 femurs had been perforated between the femoral condyles, at 1.2 cm of the intercondylar region. A 3-mm straight wire guide was introduced, through retrograde approach, until the proximal extremity of femur was reached. Femurs were assessed for posterosuperior and anterosuperior portions of major trochanter, pear-shaped cavity, and upper median line between the head-neck and the major trochanter.
Results:
in 62%, the straight wire guides exited at the anterior surface of major trochanter. In the pear-shaped cavity, the median distance found was 1.0 cm and the interquartile range was 0.5 cm, initially expressing, in relation to pear-shaped cavity, better accuracy.
Conclusion:
the central axis of the medullar canal, at coronal plane, projected better accuracy in the region of the pear-shaped cavity.
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