- To demonstrate characteristic aspects of patient positioning in acute patellar dislocation for damage evaluation using 3T MRI - To describe main anatomical structures prone to injuries in pediatric acute patellar dislocation - To highlight treatment options depending on the detected lesions and to provide clinical examples
Acute lateral patellardislocation accounts for about 2-3% of all knee injuries .
The prevalence of acute patellar dislocation is 6–77 per 100,000 population . Patellar dislocation typically initially occurs with twisting knee movement during which the medial ligamentous stabilizers rupture and the patella hits the lateral femoral condyle . In the long term,
this can lead to chronic inflammation and degenerative joint diseasemanifestedby joint instability and persistent pain...
Findings and procedure details
2522 children with knee joint injuries have been hospitalized at the Clinical and Research Institute of Emergency Pediatric Surgery and Trauma.1160 (46%) of them had acute lateral patellar dislocation (55% boys,
The most common injury mechanism was internal rotation of a flexed knee with planted foot and valgus component. Complaints and physical examination: - soft tissue swelling - patello-femoral pain syndrome - pain on knee flexion - patellar instability is...
Diagnostics and treatment tactics in patients with lateral patellar dislocation depend on: - assessment of MPFL (all three portions) and medial retinaculum forpartial andfull-thickness tears - detection of loose intra-articular ornon-displacedosteochondral or cartilaginous fragments - detection of bone marrow edema or osteochondralfractureininferomedial aspect of patella and inanterior part of lateral femoral condyle. For the comprehensive assessment of patellar dislocation a radiologist...
Address correspondence to M.Akhlebinina (e-mail: email@example.com).
and Richard D.
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