The clinical significance of anterior horn meniscal tears diagnosed on magnetic resonance images

Michael F. Shepard, David M. Hunter, Mark R. Davies, Matthew S. Shapiro, Leanne L. Seeger

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We assessed the accuracy of magnetic resonance imaging in detecting clinically significant lesions of the anterior horn of the meniscus by reviewing 947 consecutive knee magnetic resonance imaging reports. Of these, 76 (8%) indicated a tear of the anterior horn of the medial or lateral meniscus. Thirty-one of these 76 patients underwent a subsequent arthroscopic examination, and their operative reports were reviewed. The 45 patients who were not examined arthroscopically were contacted and interviewed for clinical follow-up. Among the 31 patients who underwent arthroscopic examination, 8 anterior horn tears were noted in the predicted area (26% true-positive results), 23 patients had intact anterior horns (74% false-positive results), and 18 had normal intact menisci in all zones. Of the 45 patients who did not undergo arthroscopic surgery, 6 had isolated anterior horn tears reported on magnetic resonance imaging, and 5 of the 6 were asymptomatic at follow-up. The other 39 patients had multiple pathologic conditions noted on the magnetic resonance imaging report and continued to report knee pain at the follow-up interview. Increased signal intensity at the anterior horn of the meniscus seen on magnetic resonance imaging commonly does not represent a clinically significant lesion. We recommend correlation with the physical examination when interpreting this "positive" finding on knee magnetic resonance imaging examinations.

Original languageEnglish (US)
Pages (from-to)189-192
Number of pages4
JournalAmerican Journal of Sports Medicine
Volume30
Issue number2
DOIs
StatePublished - Jan 1 2002

Fingerprint

Horns
Tears
Magnetic Resonance Spectroscopy
Magnetic Resonance Imaging
Tibial Meniscus
Knee
Arthroscopy
Physical Examination
Interviews
Pain
Meniscus

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

The clinical significance of anterior horn meniscal tears diagnosed on magnetic resonance images. / Shepard, Michael F.; Hunter, David M.; Davies, Mark R.; Shapiro, Matthew S.; Seeger, Leanne L.

In: American Journal of Sports Medicine, Vol. 30, No. 2, 01.01.2002, p. 189-192.

Research output: Contribution to journalArticle

Shepard, Michael F. ; Hunter, David M. ; Davies, Mark R. ; Shapiro, Matthew S. ; Seeger, Leanne L. / The clinical significance of anterior horn meniscal tears diagnosed on magnetic resonance images. In: American Journal of Sports Medicine. 2002 ; Vol. 30, No. 2. pp. 189-192.
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