Correlation between magnetic resonance imaging and arthroscopic findings in the knee joint

Hayat Ahmad Khan, Humayun Ahad, Pradeep Sharma, Pankaj Bajaj, Nazia Hassan, Younis Kamal, Hayat Ahmad Khan, Humayun Ahad, Pradeep Sharma, Pankaj Bajaj, Nazia Hassan, Younis Kamal

Abstract

Background: The knee joint is the largest and the most complex joint of the human body. It is not covered by any thick muscular covering anteriorly.

Objectives: The purpose of this study was to explore the diagnostic capabilities of clinical examination, magnetic resonance imaging (MRI), and arthroscopy in traumatic disorders of the knee joint, to seek correlation between clinical findings, MRI findings and arthroscopic.

Patients and methods: A total of 26 patients with a presentation suggestive of traumatic knee pathology were studied prospectively. A detailed history was taken and relevant clinical examination was done, which was followed by MRI of the knee. The patients were scheduled for arthroscopy under general/spinal anesthesia, whenever indicated.

Results: Keeping arthroscopic examination as standard, the correlation between clinical and arthroscopy showed a sensitivity of 80%, specificity of 86%, accuracy of 63.16%, negative predictive value of 93.48%; whereas MRI vs. arthroscopy showed a sensitivity of 74.42%, specificity of 93.10%, accuracy of 84.21%, and negative predictive value of 88.04%.

Conclusions: The clinical examination is an important and accurate diagnostic modality for evaluation of traumatic derangement of the knee joint. It is noninvasive, easy, available, and valuable diagnostic modality. The MRI is an accurate diagnostic modality. It can be used whenever there is an uncertain indication for arthroscopy. However, costs have to be kept in mind, especially in patients with low socio-economic status.

Keywords: Anterior Cruciate Ligament; Injury; Lateral Meniscus; Medial Meniscus; Posterior Cruciate Ligament.

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