Role of magnetic resonance imaging in the evaluation of traumatic knee joint injuries
Journal Title: Medpulse International Journal of Radiology - Year 2018, Vol 8, Issue 1
Abstract
Background: Traumatic knee injuries constitute a major source of morbidity especially in young active individuals attending orthopaedic outpatients department. MRI is a non-invasive, nonoperator dependent effective imaging modality and plays a pivotal role in early detection of these injuries with a very high negative predictive value. MRI of knee would save us many unnecessary diagnostic arthroscopy, which is an invasive procedure with associated complications. MRI has offlate become the imaging modality of choice for the evaluation of the painful Knee following injury. It can detect soft tissue abnormalities (meniscal, cruciate, collateral, Ligament tears) and microtrabecular fractures that cannot be detected by plain film. The purpose of our study was to identify various MRI imaging findings in patients with painful knee following traumatic injuries. Materials and Methods: This study was performed in the department of Radio diagnosis, on patients referred from orthopedics department from January 2017 to september 2018. Fifty patients with painful knee following traumatic knee injury (36 men, 14 women; mean age 26.9 yrs) were included in this prospective study. They were evaluated with detailed clinical history, clinical examinations and were subsequently subjected to imaging of knee using 3 T MRI 32 channel Siemens MRI machine. Sequences used were axial, sagittal and coronal PD Fat Sat, saggital T2 Fat Sat and T2 Saggital GRE. Results : In our study, the most common abnormal MRI finding was joint effusion seen in 42 cases (84%), followed by complete tear of ACL which was seen in 29 cases (58%).Most common type of meniscal injury was a Grade III tear involving posterior horn of medial meniscus (60%). ACL was the commonest ligament to be injured with complete tear being more common than partial tear. LCL was the commonest ligament to be torn in association with ACL. Indirect signs of ACL injury were evaluated and found to helpful in corroborating the tears. Conclusion: MRI is an excellent non-invasive modality with high level of accuracy in diagnosis of meniscal and ligamentous injuries of knee. It is an appropriate screening tool and helps to avoid unnecessary diagnostic arthroscopy in most cases of traumatic knee injuries.
Authors and Affiliations
Mahesh Dudhe, Varsha Rathi
Keywords
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- EP ID EP530416
- DOI 10.26611/1013813
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