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Related Concept Videos

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The sign test is an important tool in nonparametric statistics, offering a straightforward yet effective method for analyzing matched pairs, nominal data, or hypotheses concerning the median of a population. It transforms data points into positive or negative signs, avoiding the need for assumptions about data distribution and instead focusing on the direction of change. It is particularly valuable when data does not conform to the normal distribution requirements of many parametric tests. For...
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Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects
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Gage's sign--revisited!

I Schlesinger1, R J Crider

  • 1Department of Orthopedic Surgery, New York University Medical Center, New York.

Journal of Pediatric Orthopedics
|March 1, 1988
PubMed
Summary
This summary is machine-generated.

The radiographic finding known as Gage's sign in Legg-Calvé-Perthes disease was actually described by Catterall in 1971, not Gage in 1933. This article argues for renaming it Catterall's sign for accuracy.

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Area of Science:

  • Orthopedics
  • Radiology
  • Medical History

Background:

  • Legg-Calvé-Perthes disease is a hip condition affecting children.
  • Radiographic signs aid in diagnosing and assessing risk in Legg-Calvé-Perthes disease.
  • Eponyms are commonly used in medicine but can sometimes lead to confusion.

Observation:

  • The radiographic sign termed "Gage's sign" is considered an "at-risk" indicator in Legg-Calvé-Perthes disease.
  • This sign was described by Catterall in 1971.
  • Gage described a different radiographic finding in 1933.

Findings:

  • The radiographic description attributed to Gage (1933) differs from the one Catterall described in 1971.
  • The sign currently referred to as "Gage's sign" aligns with Catterall's 1971 description.
  • There is a misattribution in the current medical nomenclature regarding this radiographic sign.

Implications:

  • Renaming "Gage's sign" to "Catterall's sign" would improve the accuracy of medical terminology.
  • Correcting this eponym enhances clarity in radiographic interpretation for Legg-Calvé-Perthes disease.
  • Accurate attribution of medical discoveries is crucial for historical and educational purposes in orthopedics.