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External Cephalic Version: Is it an Effective and Safe Procedure?
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Normative data on femoral version.

Jody M Litrenta1,2, Benjamin G Domb1

  • 1American Hip Institute, 1010 Executive Court, Suite 250, Westmont, IL, USA.

Journal of Hip Preservation Surgery
|January 17, 2019
PubMed
Summary
This summary is machine-generated.

Femoral version, the rotation of the thigh bone, varies widely in patients with hip pathology. This study found no significant differences based on age or gender, highlighting broad individual variations in hip anatomy.

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Area of Science:

  • Orthopedic surgery
  • Hip biomechanics
  • Radiology

Background:

  • Femoral version, a key aspect of hip anatomy, is known to vary among individuals.
  • Alterations in femoral version are implicated in the development of hip pathologies.
  • Normative data for femoral version in patients with symptomatic hip conditions are lacking.

Purpose of the Study:

  • To assess femoral version in a large cohort of patients undergoing hip arthroscopy for symptomatic pathology.
  • To investigate potential correlations between femoral version and patient-specific factors like age, gender, and bony morphology.
  • To establish normative data for femoral version in a population with hip pathology.

Main Methods:

  • Analysis of a prospectively collected database of 1449 hips from patients treated with arthroscopy.
  • Pre-operative magnetic resonance imaging (MRI) was used to measure femoral version for each patient.
  • Statistical analysis was performed to identify differences based on age, gender, bony morphology, and other hip-related factors.

Main Results:

  • The average femoral version across the entire study population was 8.4° ± 9.2°, with a wide range from -23° to 63°.
  • No statistically significant differences in femoral version were found concerning age, gender, bony morphology, or other investigated hip factors.
  • A trend towards increased retroversion was observed in younger patients, alongside significant overall variation in femoral version across all subgroups.

Conclusions:

  • Significant variability in femoral version is present in patients experiencing symptomatic hip pathology.
  • While the proximal femur is often described as anteverted, relative retroversion is a common finding in this patient group.
  • The wide range of femoral version, irrespective of age or gender, underscores the need for individualized assessment in hip pathology management.