MRI imaging pattern of ankle joint pathology (retrospective study, from 2018-2020 at Tikur Anbessa Specialized Hospital and saint paulos millennium medical college hospital, Addis Ababa, Ethiopia)

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Addis Abeba University


Background: The ankle joint (Talocrural articulation) is a hinge-type synovial joint. It is one of the frequently injured joints and as such ligament injury is a more common pathology. The most common ankle injuries are sprains and fractures, which involve ligaments and bones in the ankle. Ankle joint can also be affected by inflammatory, infectious and tumoral lesions. Magnetic resonance (MR) imaging has opened new horizons in the diagnosis and treatment of many diseases affecting the ankle and foot. Objectives: This study was designed to assess the Magnetic Resonance imaging findings/patterns of ankle joint pathologies in patients who presented with ankle joint compliant. Method: Hospital based retrospective descriptive cross-sectional study was conducted at Tikur Anbessa Specialized Hospital and Saint Pauls Millennium Medical Collage Hospital within a period of 30 months from January 2018 to June 2020G.C to address the specific objectives stated. Data was collected using structured questionnaires from picture archiving and communication system (PACS) system, from both manual and electronic patient recordings. Magnetic Resonance Images were evaluated for result correspondence. Computerized Data analysis was conducted by using Statistical Package for the Social Science (SPSS) version 25 software Result: A total of 114 patients were imaged with Magnetic Resonance Images in the two hospitals over the last 30 months and among them 75(56.8%) were females and 39(34.25) were males. The commonest age involved was between 31-40 and 21-30 years with age range from 787years. Bone marrow signal change (35.1%) is the commonest pathology detected with MRI followed by tendon pathology (28.9%) and joint effusion (26.3%). Tenosynovitis is the commonest tendon lesion detected followed by tendinopathy which is more common in Achilles tendon, the commonly involved tendon among tendons at ankle joint. Anterior Talofibular ligament is the commonly injured ligament in 72.7% of the cases with ligament lesions. Study showed 11 different types of tumor lesions (Giant cell tumor was more common), 5 cases with Haglund syndrome and 2 cases of Madura foot. Conclusion: Magnetic Resonance Image has a special quality in detecting bone, tendon, ligament and soft tissue pathologies irrespective of the etiology and our study confirmed this quality of detecting wide array of pathologies. Magnetic Resonance Image is an irreplaceable imaging modality in Musculoskeletal system imaging and its accessibility has led to increased detection of pathologies of the ankle joint which otherwise wouldn’t have been detected. Detection of minor fractures, bone contusion, small soft tissue lesions in detail made MRI gold standard imaging modality in Ankle joint.



MRI imaging, ankle joint, pathology