Knee MR-arthrography in assessment of meniscal and chondral lesions (original) (raw)
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Mri and Arthroscopy- Co-Relation in Meniscal and Ligamentous Knee Injuries
Journal of Evolution of Medical and Dental Sciences, 2018
BACKGROUND MRI use for primary diagnosis of traumatic knee intra-articular lesion. The purpose of this investigation was to correlate MR and arthroscopic findings in a setup of knee injury. MATERIALS AND METHODS A descriptive study of 111 patients who underwent MRI for the diagnosis of soft tissue injury in knee over a period of last 2 years in GMC Hospital, Nagpur. A combination of T1-and T2-weighted sequences is most commonly used. RESULTS Commonest lesion detected in our study was ACL tear followed by meniscal tear. These lesions were further collaborated with arthroscopic finding and further treatment was done in GMC Hospital, Nagpur. Sensitivity, specificity, positive predictive value and negative predictive value was calculated of MRI with respect to Arthroscopy.
Journal of Ayub Medical College, Abbottabad : JAMC
Magnetic Resonance Imaging (MRI) is frequently advised to evaluate clinically suspected cases of meniscal injuries in our setup. The objective was to determine the diagnostic accuracy of MRI in meniscal injuries of knee joint and its effectiveness in selection of patients for arthroscopy. A Cross-sectional comparative study was conducted at Radiology Department Military Hospital (MH) Rawalpindi in collaboration with Orthopaedic Department Combined Military Hospital (CMH) Rawalpindi from 31 Jan 2007 to 1 Aug 2007. Fifty-seven patients with clinical suspicion of meniscal injuries were subjected to MRI. Arthroscopy was done only in 34 patients while 23 were excluded on the basis of MRI findings. MRI findings were compared with arthroscopic findings. Medial and lateral menisci were considered separately in each case. Among 57 patients only 30 showed significant tear on MRI. Arthroscopy was done in these cases. Arthroscopy was considered on clinical grounds only in 4 patients who did not...
Background: The purpose of the study is to analyze and compare the results of MRI diagnostic accuracy with the arthroscopy taking as a gold standard in meniscal injuries. Methodology: The patients with knee injuries who were referred to Radiology Department of Lahore General Hospital for MRI after clinical examinations were included in the study with their consent. Sample size was taken 200 and those patients after MRI scan were referred for arthroscopy. Results: The sensitivity, specificity and diagnostic accuracy of MRI was calculated after the results of arthroscopy which was set as a gold standard which was 67%, 87% and 85% respectively. RI is a good screening option to avoid arthroscopy in knee injury patients. Conclusion: To assess the meniscal and ligamentous injuries the MRI is an excellent noninvasive option. It can be used for the screening of patients for arthroscopy which was set as a gold standard in meniscal tears and knee injury.
International Orthopaedics, 2008
The aim of this study was to detect the accuracy of routine magnetic resonance imaging (MRI) done in different centres and its agreement with arthroscopy in meniscal and ligamentous injuries of the knee. We prospectively examined 70 patients ranging in age between 22 and 59 years. History taking, plain X-ray, clinical examination, routine MRI and arthroscopy were done for all patients. Sensitivity, specificity, accuracy, positive and negative predictive values, P value and kappa agreement measures were calculated. We found a sensitivity of 47 and 100%, specificity of 95 and 75% and accuracy of 73 and 78.5%, respectively, for the medial and lateral meniscus. A sensitivity of 77.8%, specificity of 100% and accuracy of 94% was noted for the anterior cruciate ligament (ACL). We found good kappa agreements (0.43 and 0.45) for both menisci and excellent agreement (0.84) for the ACL. MRI shows high accuracy and should be used as the primary diagnostic tool for selection of candidates for arthroscopy. Level of evidence: 4. Résumé Le but de cette étude est de détecter un examen de routine l'IRM et la bonne correspondance entre ces constatations et les constatations arthroscopiques des lésions méniscales ou des lésions ligamentaires du genou. Nous avons réalisé une étude prospective de 70 patients âgés de 22 à 59 ans avec analyse de l'histoire clinique, des radiographies, de l'examen clinique, de l'examen IRM et des constatations arthroscopiques. La sensitivité, la spécificité et l'exactitude des constatations ont été évaluées de manière statistique. Nous avons trouvé respectivement une sensitivité de 47% et 100%, une spécificité de 95% et 75% et une exactitude des constatations de 73% et 78,5%, pour les lésions du ménisque interne ou du ménisque latéral. En ce qui concerne les ligaments croisés, la sensitivité est de 77,8%, la spécificité de 100% et l'exactitude des constatations de 94% avec une bonne correspondance Kappa (0,43 et 0,45) pour les ménisques et 0,84 pour le ligament croisé antérieur. L'IRM peut donc être utilisée comme un élément tout à fait sûr et routinier concernant le diagnostic primaire des lésions miniscales ou des lésions ligamentaires chez les patients devant bénéficier d'une arthroscopie. Niveau d'évidence : 4. Abbreviations MRI magnetic resonance imaging ACL anterior cruciate ligament
Radiološke tehnologije, 2021
Introduction: The knee joint has a unique anatomical structure in the human body. The localization between the two longest bones in the human body – femur, and tibia – makes it prone to injuries, trauma, and other pathologies. Clinical examination of the joint is still the primary method in evaluating the condition of the patient's knee. The study aims to determine the diagnostic accuracy of clinical examination and magnetic resonance (MR) in assessing chondral lesions of knee joint using arthroscopy as a reference standard.Patients and methods: The examination was conducted on 94 patients (58 males and 36 females) with knee injuries. Clinical examination indicated a primary chondral lesion of knee cartilage in eight patients (five men and three women), with an average age of 45.75. Besides the clinical examination, the diagnostics were performed using MR imaging by Siemens of 0.5 Tesla, and arthroscopy was performed using Storz arthroscope.Results: Our research has generated th...
Skeletal radiology, 1999
Objective. To compare four imaging methods in the evaluation of the postoperative meniscus: conventional arthrography, conventional MR imaging, MR arthrography with iodinated contrast material, and MR arthrography with gadolinium-based contrast material. Design and patients. Thirty-three patients referred for knee MR examinations with a history of meniscal surgery were studied prospectively. At the first patient visit, conventional MR examination was followed by an MR arthrogram with gadoliniumbased contrast material. At the second visit, a conventional arthrogram with iodinated contrast material was followed immediately by an MR examination. Imaging examinations were interpreted by a masked reader, and then compared with the results of repeat arthroscopic surgery in 12 patients. Results. The correct evaluation of the status of postoperative menisci was allowed in 12 of 13 patients (92%) by MR arthrography using gadolinium-based contrast agent, 10 of 13 patients (77%) by conventional MR examination, 9 of 12 patients (75%) by MR arthrography, and 7 of 12 patients (58%) by conventional arthrography. Conclusion. Intra-articular fluid is advantageous in the evaluation of patients with a suspected meniscal retear. MR arthrography with gadolinium-based contrast material is the most accurate imaging method for the diagnosis of meniscal retears.
Evaluation of postoperative menisci with MR arthrography and routine conventional MRI
Clinical Imaging, 2008
Objective: The diagnosis of a recurrent tear can be more difficult in the postoperative meniscus. The purpose of our study was to determine the accuracy of conventional magnetic resonance imaging (MRI) and MRI with intraarticular contrast material [magnetic resonance (MR) arthrography] for detecting recurrent meniscal tears after surgery. Materials and Methods: Seventy-two patients who had arthroscopic surgery for meniscal tear and still got complaints were selected prospectively for MR arthrography and conventional MRI. Routine knee protocols with appropriate surface coil were used on 0.5 T MRI system. A 1:100 gadolinium-saline solution 30-40 ml was injected intraarticulary for MR arthrography. Of 72 patients, 45 had repeated arthroscopy for comparison of the results. The morphology of the meniscus as seen on MR images was characterized according to meniscal repair an the degree of meniscal resection into three groups.