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Related Experiment Videos

The anorectal angle is not a reliable parameter on defaecating proctography

J Jorgensen1, P Stein, D W King

  • 1Colorectal Unit, St George Hospital, Sydney, Australia.

The Australian and New Zealand Journal of Surgery
|February 1, 1993
PubMed
Summary

Proctography

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Area of Science:

  • Medical Imaging
  • Gastroenterology
  • Anorectal Physiology

Background:

  • Proctography is a standard diagnostic tool for anorectal disorders.
  • Key parameters include the anorectal angle, crucial for assessing pelvic floor function.

Purpose of the Study:

  • To evaluate the reproducibility of anorectal angle measurements from defaecating proctograms.
  • To assess both intra- and inter-observer variability in measurements.

Main Methods:

  • Analysis of 43 defaecating proctograms by four independent observers.
  • Measurements were taken at rest and during straining on two separate occasions.

Main Results:

  • Significant variations in anorectal angle measurements were observed between and within observers.
  • This indicates poor reproducibility of the measurement.

Conclusions:

  • The anorectal angle measurement derived from proctography demonstrates significant variability.
  • Clinicians should interpret anorectal angle measurements with caution due to potential inaccuracies.

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