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ISCHIOFEMORAL IMPINGEMENT: ASSESSMENT OF MRI FINDINGS AND THEIR RELIABILITY

Ahmet Akça1, Kadihan Yalçın Şafak1, Ebru Dülger İliş1

  • 1. Kartal Education and Research Hospital, Radiology Department, Istanbul, Turkey.

Acta Ortopedica Brasileira
|September 20, 2017
PubMed
Abstract

Insights

Magnetic Resonance Imaging (MRI) reveals key indicators for ischiofemoral impingement syndrome (IFI). Narrowed ischiofemoral and quadratus femoris spaces, along with increased ischial and femoral neck angles, are significant findings.

Area of Science:

  • Orthopedic Imaging
  • Radiology
  • Musculoskeletal System

Background:

  • Ischiofemoral impingement syndrome (IFI) is a cause of hip pain.
  • Accurate diagnosis relies on identifying specific anatomical changes.

Purpose of the Study:

  • To evaluate Magnetic Resonance Imaging (MRI) findings in ischiofemoral impingement syndrome (IFI).
  • To assess the diagnostic validity of MRI for IFI.

Main Methods:

  • Retrospective analysis of 55 hips, with 30 diagnosed with IFI.
  • Comparison of ischiofemoral space (IFS), quadratus femoris space (QFS), ischial angle (IA), and femoral neck angle (FNA) between IFI and control groups.
  • Assessment of quadratus femoris muscle for edema, fatty replacement, and rupture.

Main Results:

  • Significantly lower QFS and IFS in IFI patients (p<0.001).
  • Significantly higher IA (p=0.012) and FNA (p=0.010) in IFI patients.
  • Quadratus femoris muscle showed edema in all cases, with atrophy or fatty replacement in some.

Conclusions:

  • MRI findings of IFI include narrowed QFS and IFS, and increased IA and FNA.
  • These MRI characteristics are valuable for diagnosing IFI in patients with hip pain.
  • IFI should be considered in the differential diagnosis of hip pain.
Keywords:
Hip joint/pathology. Femur neck. Magnetic resonance ımaging/methods. Range of motionarticular. Reproducibility of results. Sensitivity and specificity

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