Is the Lesser Trochanter Profile a Reliable Means of Restoring Anatomic Rotation After Femur Fracture Fixation?

Clinical Orthopaedics and Related Research
Lucas S MarchandTravis G Maak

Abstract

Restoring normal femoral rotation is an important consideration when managing femur fractures. Femoral malrotation after fixation is common and several preventive techniques have been described. Use of the lesser trochanter profile is a simple method to prevent malrotation, because the profile changes with femoral rotation, but the accuracy of this method is unclear. The purposes of this study were (1) to report the rotational profiles of uninjured femora in an adult population; and (2) to determine if the lesser trochanter profile was associated with variability in femoral rotation. One hundred fifty-five consecutive patients (72% female and 28% male) with a mean age of 32 years (range, 12-56 years) with a CT scanogram were retrospectively evaluated. Patients were included if CT scanograms had adequate cuts of the proximal and distal femur. Patients were excluded if they had prior hip/femur surgery or anatomic abnormalities of the proximal femur. CT scanogram measurements of femoral rotation were compared with the lesser trochanter profile (distance from the tip of the lesser trochanter to the medial cortex of the femur) measured on weightbearing AP radiographs. These measurements were made by a single fellowship-trained ortho...Continue Reading

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Citations

Aug 20, 2019·The Journal of the American Academy of Orthopaedic Surgeons·Andrew G DubinaRobert V OʼToole
Oct 1, 2019·Journal of Orthopaedic Trauma·Lucas S MarchandDavid L Rothberg
Jul 23, 2020·Journal of Orthopaedic Trauma·Stephen J ShymonMark R Adams
Aug 24, 2021·The Journal of Bone and Joint Surgery. American Volume·Baruenchan JuKwang-Bok Lee

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