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[Ultrasound morphologic criteria in evaluating meniscus changes--an experimental study]
J Richter1, J Grifka, A Fisseler-Eckhoff
1Chirurgische Klinik und Poliklinik, Bergmannsheil, Universitätsklinik, Bochum.
Zeitschrift Fur Orthopadie Und Ihre Grenzgebiete
|March 1, 1996
Summary
Ultrasonography shows promise for diagnosing knee meniscus disorders, with specific echo patterns identifying tears and degeneration. However, differentiating tear types remains a challenge with current ultrasound technology.
Area of Science:
- Orthopedics
- Radiology
- Medical Imaging
Background:
- Ultrasonography (US) is increasingly used for evaluating internal knee derangements.
- The diagnostic value of ultrasound for meniscal pathologies is still debated.
- Histological correlation is essential to validate imaging findings.
Purpose of the Study:
- To compare sonographic findings of menisci with histologic results.
- To assess the efficacy of ultrasound in diagnosing meniscal tears and degeneration.
- To investigate the characteristic ultrasound echoes associated with various meniscal pathologies.
Main Methods:
- 64 cadaveric menisci were examined using a 5 MHz phased array sector scan in a water bath.
- Sonographic examinations were correlated with histologic findings.
- Different pathological conditions including tears, degeneration, and crystal deposition diseases were analyzed.
Main Results:
- Vertical meniscal tears produced a sharp, bright line echo.
- Severe meniscal degeneration appeared as hypoechoic areas on ultrasound.
- Ultrasound could not differentiate between various types of meniscal tears due to consistent echo patterns.
Conclusions:
- Sonography is a valuable tool for diagnosing meniscal disorders.
- Specific echo characteristics can indicate meniscal tears and degeneration.
- Further research is needed to improve ultrasound's ability to differentiate meniscal tear types.