Affiliation:
1. Southern California Center for Sports Medicine Long Beach, California
2. University of California, San Francisco Medical School, San Francisco, California
3. Memorial Magnetic Resonance Center of Long Beach, Long Beach, California, and the Del Amo Diagnostic Center, Torrance, California
Abstract
Magnetic resonance imaging (MRI) is an accepted non invasive modality for evaluation of soft tissue pathology without exposure to ionizing radiation. Current appli cations demonstrate excellent visualization of the anat omy and pathology of various organs. Preliminary stud ies in the knee reveal fine resolution of anatomy and pathology involving the meniscus. The purpose of this study is to determine a prospective correlation between MRI scans and actual meniscal pathology as docu mented at the time of arthroscopy. MRI scans were obtained in 155 patients, on 156 knees (one patient with bilateral scans), with 86 patients (87 knees) even tually undergoing diagnostic and operative videoar throscopy performed by the same surgeon (DWJ). All images were obtained on the same high-resolution 1.5 Tesla GE Signa Magnetic Resonance Scanner with the same radiologist performing all readings (PEB). The knees were studied in the coronal and sagittal plane using a spin echo sequence and 5 mm slice thick nesses. The menisci were described as having Grade 1, 2, or 3 changes, with Grade 3 reserved for complete tears. Using arthroscopy as the diagnostic standard, the accuracy of MRI in diagnosing medial and lateral meniscal tears was 93.1 % and 96.6%, respectively with a Grade 3 MRI reading. For tears of the ACL, the accuracy was 96.6% as confirmed at arthroscopy. Five tears of the PCL were also documented by MRI and correlated with clinical evaluation. Other abnormalities seen were articular cartilage and osteochondral de fects, bone tumors, tibial plateau fractures, Baker's cysts, and meniscal cysts. The MRI scan is a highly accurate, noninvasive modality for documentation of meniscal pathology as well as cruciate ligament tears in the knee.
Subject
Physical Therapy, Sports Therapy and Rehabilitation,Orthopedics and Sports Medicine
Reference19 articles.
1. The knee: surface-coil MR imaging at 1.5 T1.
2. 1.5-T surface-coil MRI of the knee
3. Hall FM Pitfalls in the assessment of the menisci by knee arthrography Radiol Clin North AM 19 305-328, 1981
4. Hendee WR, Morgan CJ Magnetic resonance imaging Part 1-Physical pnnciples West J Med 141 491-500, 1984
5. Hendee WR, Morgan CJ Magnetic resonance imaging Part 2-Clinical applications West J Med 141 638-648, 1984
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