Munir Ahmad, Zeenat Ayub, Noorul Hadi.
Prevalence of various types of intra-articular injuries detected by Magnetic Resonance Imaging in trauma to the knee joint.
J Med Sci Jan ;13(2):136-9.

Background: Injuries to the menisci and ligaments are common in knee joint trauma. Magnetic Resonance Imaging has emerged as the primary investigation for evaluation of the knee joint because of its high resolution, non-invasive nature and accuracy. The purpose of the study was to find out the most frequent abnormal findings in knee joint injuries on Magnetic Resonance Imaging. Research Methodology: This descriptive study was conducted in Radiology Department of Postgraduate Medical Institute Hayatabad Medical Complex Peshawar from January 2003 to June 2004. Forty patients referred for knee MRI to the radiology department having knee injuries were included in this study. MRI of the knee was performed and abnormal findings in each case were recorded. Results: Out of 40 cases, 30 (75%) were male and 10 (25%) were female. The age ranged from 12 to 60 years. 25 patients had accidental injuries and 15 had sports injuries. 60% had joint effusion. ACL tear was seen in 44% and PCL tear was demonstrated in 7% cases. 28% of cases had MM tear while 12% had LM tear. MCL injury was seen in 25% while LCL injury was seen in 12% of cases. Bone bruises and synovial cyst was seen in 6% and 5% of cases respectively. Conclusion: The most common injuries were accidental and the most frequent lesion was ACL tear and medial meniscus tear.

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