The correlation of meniscus injury in MRI diagnosis and arthroscope
- VernacularTitle:半月板损伤的MRI诊断与关节镜所见的比较研究
- Author:
Jingmin HUANG
;
Zhi WANG
;
Li ZHAO
- Publication Type:Journal Article
- Keywords:
Knee joint;
Arthroscope;
Diagnosis;
Magnetic resonance imaging
- From:
Chinese Journal of Orthopaedics
1999;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective MRI was a powerful technique for evaluation of the meniscus injury.However,meniscal injuries were the most common reason for arthroscopy of the knee.The research was to reveal the relationship between the classification on MRI and the morphological changes of the meniscus injury under the arthroscopy in order to indicate the surgical procedures according to the MRI degree of meniscus in-juries.Methods From October2000to December2001,157knees of152cases with meniscus tears were analyzed retrospectively,who were classified into the osteoarthritis group and sport injury group depending on the causes of injury.There were107knees in osteoarthritis group,50knees in sport injury group.All cases were made MRI examination with T 1 and T 2 sequences,and152of them underwent arthroscopic oper-ation.According to the different signal intensity,changes of contour and edge of meniscus,juried meniscus were divided into four degrees,referring to the standard described by Stoller.The conditions of torn menis-cus were observe and recorded while performing arthroscopy in order to compare with that on MRI.Results The MRI classification in osteoarthritis group,there were gradeⅠin21knees,gradeⅡin34knees,gradeⅢin40knees,and gradeⅣin12knees;Depending on the exploration in arthroscopy,the accurate rate of diagnosis of MRI for meniscus injury was100%(21/21)for gradeⅠ,91.2%(31/34)for gradeⅡ,92.5%(37/40)for gradeⅢand100%(12/12)for gradeⅣ.The patients with gradeⅢand gradeⅣinjury of the meniscus all underwent the operation of arthroscopy.The MRI classification in sport injury group,there were gradeⅠin5knees,gradeⅡin4knees,gradeⅢin26knees,and gradeⅣin15knees.The accurate rate of diagnosis of MRI was75%(3/4)for gradeⅡ,92.3%(24/26)for gradeⅢand93.3%(14/15)for gradeⅣ.Conclusion In the meniscus tears,gradeⅠinjury on MRI is not indicated to surgical treatment,gradeⅡcan be explored in arthroscopy or observed when it is in need based on clinical symptoms.GradeⅢand gradeⅣof meniscus injury necessitate partial meniscectomy or meniscoplasty.
