Assessment And Evaluation Of Patellofemoral Instability On Magnetic Resonance Imaging
Journal Title: International Journal of Orthopaedics Traumatology & Surgical Sciences - Year 2016, Vol 2, Issue 2
Abstract
Background: Patellofemoral instability is a common clinical problem. Risk factors predisposing to patellar dislocation include ligamentous laxity, femoral or tibialmalrotation, patella alta or femoral trochlear dysplasia. Objective of this study was to determine the contribution of magnetic resonance imaging (MRI) in evaluating patellofemoral instability. Materials and Methods:39 patients (45 knees) with patellar instability who underwent knee magnetic resonance imaging between June 2014 and June 2016, at St. John’s Medical College Hospital, Bangalore were included. MRI were analyzedfor the presence of bone, hyaline cartilage and soft-tissue abnormalities, as well as anatomic variants that may contribute to chronic patellar instability. Results: Of the 45 knees analyzed, we found bone changes in 44%, cartilaginous injuries in 64%, disruption of the medial patellofemoral ligament (MPFL) in 29% and joint morphology abnormalities in 73% patients. Meniscal tears were also identified in 2 (4%) patients and fibular fracture in one (2%) patient.Conclusion: MRI helped in the detection of predisposing factors that may contribute to the development of patellofemoral instability and the diagnosis of bone, hyaline cartilage, ligamentous and meniscal abnormalities.
Authors and Affiliations
Sandeep S, Reddy Ravikanth, Babu Philip
Keywords
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