Related article in Hip & Pelvis

  • Case ReportSeptember 1, 2013

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    Bilateral Insufficiency Fracture of Medial Subtrochanteric Area of the Femur: A Case Report

    Dong-Sik Chae, MD, Jung-Han Lee, MD, Woo-Suk Lee, MD, Ick-Hwan Yang, MD, Chang-Dong Han, MD

    Hip Pelvis 2013; 25(3): 232-236
    A non-traumatic, incomplete insufficiency fracture commonly involves the lateral side of the femoral cortex; whereas a non-traumatic, incomplete stress fracture commonly involves the medial side of the femoral cortex. Here, we describe a case of a 66-year-old woman with a two-month history of bilateral thigh pain without trauma or medication usage who was diagnosed with bilateral subtrochanteric insufficiency fractures involving the medial side of the femoral cortex.
  • Original ArticleDecember 31, 2018

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    Utility of False Profile View for Screening of Ischiofemoral Impingement

    Dae-Kyung Kwak, MD, Ick-Hwan Yang, MD, PhD, Sungjun Kim, MD, PhD*, Sang-Chul Lee, MD, PhD, Kwan-Kyu Park, MD, PhD, Woo-Suk Lee, MD, PhD

    Hip Pelvis 2018; 30(4): 219-225
    Abstract
    Purpose: Ischiofemoral impingement (IFI)–primarily diagnosed by magnetic resonance imaging (MRI)–is an easily overlooked disease due to its low incidence. The purpose of this study was to evaluate the usefulness of false profile view as a screening test for IFI.
    Materials and Methods: Fifty-eight patients diagnosed with IFI between June 2013 and July 2017 were enrolled in this retrospective study. A control group (n=58) with matching propensity scores (age, gender, and body mass index) were also included. Ischiofemoral space (IFS) was measured as the shortest distance between the lateral cortex of the ischium and the medial cortex of lesser trochanter in weight bearing hip anteroposterior (AP) view and false profile view. MRI was used to measure IFS and quadratus femoris space (QFS). The receiver operating characteristics (ROC), area under the ROC curve (AUC) and cutoff point of the IFS were measured by false profile images, and the correlation between the IFS and QFS was analyzed using the MRI scans.
    Results: In the false profile view and hip AP view, patients with IFI had significantly decreased IFS (P<0.01). In the false profile view, ROC AUC (0.967) was higher than in the hip AP view (0.841). Cutoff value for differential diagnosis of IFI in the false profile view was 10.3 mm (sensitivity, 88.2%; specificity, 88.4%). IFS correlated with IFS (r=0.744) QFS (0.740) in MRI and IFS (0.621) in hip AP view (P<0.01).
    Conclusion: IFS on false profile view can be used as a screening tool for potential IFI.
H&P
Vol.36 No.1 Mar 01, 2024, pp. 1~75
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