To examine the reliability and validity of diagnosing a knee injury using magnetic resonance imaging

Abstract

Introduction: Following the routine use of MRI as a screening test after the clinical diagnosis for knee injuries such as meniscal or ligament injury has a potential detrimental effect on the affected patients particularly in developing countries. The major objective of this study is to assess the reliability and validity in diagnosing a knee injury with the help of magnetic resonance imaging technology. Materials and Methodology: This study series comprised of 68 patients that included 50 men and 18 women. After obtaining the ethical clearance from the institutional ethical committee, the study was commenced on the patients attending the Department of Orthopaedics and traumatology in our hospital. MRI scanning of all knees was done before doing diagnostic arthroscopy. Information about the patients were swiftly collected through interviews and filled in the structured questionnaires that were issued to the study participants; physical examination, MRI scanning and arthroscopic findings were also recorded. Results: Among all the participants, there were male predilection in the group with 73.5% (n=50). And the median age was observed to be around 39 years with the range between 29 – 44 years. Female with knee injuries were observed to be in age range of 36 – 46 years. This difference was observed to be statistically significant. The contingency table of sensitivity and specificity of 68 patients with various knee injuries. Total number of patients with positive MRI findings 83% have an ACL lesion diagnosed by arthroscopy as well. The result obtained refers to the sample comprising 68 patients and must not be generalised but it can serve as a good orientation tool. Conclusion: RI is a non-invasive screening modality; it provides detailed insight and is an essential tool in decision-making before planning for any therapeutic intervention.