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The hindfoot alignment view

C L Saltzman1, G Y el-Khoury

  • 1Department of Orthopaedic Surgery, University of Iowa, Iowa City 52242, USA.

Foot & Ankle International
|September 1, 1995
PubMed
Summary
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This study presents a reliable radiographic method to assess hindfoot alignment. The modified technique accurately measures the weight-bearing axis, aiding in evaluating complex foot malalignments.

Area of Science:

  • Orthopedic surgery
  • Radiographic imaging
  • Biomechanics

Background:

  • Assessing coronal plane hindfoot alignment is crucial for diagnosing foot and ankle pathologies.
  • Existing methods may have limitations in accuracy or reproducibility.

Purpose of the Study:

  • To describe a modified radiographic technique for evaluating hindfoot coronal plane alignment.
  • To establish normative data for this measurement in asymptomatic adults.
  • To assess the reliability of the described radiographic method.

Main Methods:

  • A modified Cobey's method was used for radiographic imaging.
  • The moment arm between the leg's weight-bearing axis and the heel's contact point was estimated.
  • Normative data were collected from 57 asymptomatic adult subjects.

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Main Results:

  • The weight-bearing line of the tibia fell within 8 mm of the lowest calcaneal point in 80% of subjects.
  • In 95% of subjects, the line was within 15 mm of the lowest calcaneal point.
  • The technique demonstrated high reliability, with an interobserver correlation coefficient of 0.97.

Conclusions:

  • The modified radiographic technique is a reliable method for measuring coronal plane hindfoot alignment.
  • This technique can aid in the evaluation of complex hindfoot malalignments.
  • Normative data provide a benchmark for clinical assessment.