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H-Index Predicts Academic Rank Among Orthopaedic Surgery Faculty.

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The Hirsch index (h-index) and career length are key predictors of senior academic rank in orthopaedic surgery. Higher academic productivity is observed at top-ranked institutions, with research output increasing over a surgeon's career.

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Area of Science:

  • Orthopaedic Surgery
  • Academic Medicine
  • Bibliometrics

Background:

  • Faculty promotion in orthopaedic surgery increasingly relies on research productivity, education, and clinical performance.
  • The Hirsch index (h-index) is a widely used metric for academic impact.
  • The relationship between the h-index and academic rank in orthopaedic surgery requires further investigation.

Purpose of the Study:

  • To identify predictors of senior academic rank (associate or full professor) in orthopaedic surgery.
  • To analyze the correlation between academic metrics and faculty rank.
  • To compare academic productivity between top-ranked and lower-ranked orthopaedic surgery programs.

Main Methods:

  • Analysis of faculty data from the top 50 academic orthopaedic surgery programs.
  • Collection of academic metrics including h-index, publication counts, and career length from Scopus.
  • Multivariate analysis and recursive partitioning to determine predictors of senior academic rank.

Main Results:

  • The h-index and career duration were identified as the strongest predictors of senior academic rank.
  • Multivariate recursive partitioning highlighted the h-index, publication count, first-author publications, and career length as influential.
  • Faculty at institutions ranked 1-25 showed significantly higher academic productivity than those ranked 26-50 (p < 0.001).
  • Research productivity increased with career duration, while the m-index plateaued mid-career.

Conclusions:

  • The h-index and career length are significant predictors of senior academic rank in orthopaedic surgery.
  • Higher-ranked orthopaedic surgery programs exhibit greater academic productivity.
  • While research output generally rises with career length, the m-index stabilizes in mid-career.