J Korean Radiol Soc.  1996 Mar;34(3):419-423.

Diagnostic Accurracy of MR Imaging and Pattern of Injury in the Posterior Cruciate Ligament injury

• Ahn H
• Kim JH
• Kim SW
• Kim BY
• Lee JG
• Chun HG

Abstract

PURPOSE
To evaluate the diagnostic accuracy of MR imaging in posterior cruciate ligament(PCL) injuries, to describe the variety of these injuries and to assess the type and frequency of associated knee injuries.
MATERIALS AND METHODS
We retrospetively analysed 75 cases with knee injuries. In all cases, the prescence of a PCL tear was determined by arthroscopy or surgery and the type of tear and patterns of associated knee injuries were described.
RESULTS
Twenty-eight PCL tears were identified with arthroscopy or surgery. Figures for the sensitivity, specificity, and accuracy of MR diagnosis for the PCL injury were 86%, 94% and 91% respectively. Twenty-one cases(75%) had complete PCL tears and seven (25%) had partial tears. The commonest tear site was midsubstance(18 cases, 64.3%). Twenty-seven cases(96%) had associated knee injuries ; the remaining patient(4%) had isolated PCL injuries. There were 19 cases(68%) of ligamentous injuries, ten (36%) of meniscal tear, ten (36%)of bony injuries, and 20 (71%) of joint effusions. Of the ligamentous injuries, those involving the medialcollateral ligament were most often seen(10 cases, 36%).
CONCLUSIONS
MR imaging is an accurate method for the detection and evaluation of PCL injury and associated knee abnormalities.

Keyword

Knee, MR; Knee, injuries; Knee, ligaments, menisci, and cartilage

MeSH Terms

Arthroscopy
Diagnosis
Joints
Knee
Knee Injuries
Ligaments
Magnetic Resonance Imaging*
Posterior Cruciate Ligament*
Sensitivity and Specificity