Open AccessRole of MRI in assessment of patello-femoral derangement in patients with anterior knee pain
Author(s) -
Hadeer Safwat Fahmy,
Nivan Hany Khater,
Nahed Mohamed Nasef,
Nasef Mohamed Nasef
Publication year - 2016
Publication title -
the egyptian journal of radiology and nuclear medicine /the egyptian journal of radiology and nuclear medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.19
H-Index - 13
eISSN - 2090-4762
pISSN - 0378-603X
DOI - 10.1016/j.ejrnm.2016.07.020
Subject(s) - medicine , magnetic resonance imaging , anterior knee pain , patellofemoral joint , patella , osteoarthritis , radiology , knee pain , anterior cruciate ligament , surgery , pathology , alternative medicine
Objective: To assess the diagnostic accuracy of magnetic resonance imaging (MRI) in evaluating patello-femoral instability as a cause of anterior knee pain (AKP) and its predisposing factors.Methods: 55 knees of 50 adult patients below 40 years complaining of AKP underwent MRI between February 2013 and February 2015. The patients were analyzed prospectively for the presence of bone, hyaline cartilage and soft-tissue abnormalities, as well as anatomic variants that may contribute to patello-femoral maltracking or impingement abnormalities. Our results were compared to those of the arthroscopic and mini open exploration procedures.Results: In the 55 knees analyzed for patello-femoral instability cartilaginous injuries were found in 58%, with an MRI sensitivity of 88%, disruption of the medial patello-femoral ligament (MPFL) in 31% with an MRI sensitivity 84%, joint morphology abnormalities in 74.5% of patients, bone edema in 27% of patients and Hoffa’s fat pad edema in 30 patients (55%). MRI had a sensitivity of 84% and accuracy of 81% in determining the injury site and pattern.Conclusion: MRI is reliable imaging modality in identifying the risk factors that may contribute to the development of patello-femoral maltracking or impingement permitting individual tailored treatment