Type:
Educational Exhibit
Keywords:
Performed at one institution, Case-control study, Retrospective, Trauma, Dysplasias, Diagnostic procedure, MR, CT, Conventional radiography, Paediatric, Musculoskeletal joint, Musculoskeletal
Authors:
T. Kostikova, I. Melnikov, M. Akhlebinina, M. Ublinskiy, T. Akhadov; Moscow/RU
DOI:
10.26044/ecr2020/C-00822
Background
Lateral dislocation of patella is a common knee injury in children and adolescents. Patellar dislocation is more common among girls [11], as well as among active adolescents and young athletes [2].
The lateral patellar dislocation is a severe damage. The treatment of primary dislocation in children is predominantly conservative [15] However, the probability of re-dislocation in this case is about 36% over the next 20 years [6]. Chronic patellofemoral instability leads to the development of patellofemoral arthrosis, persistent pain, limitation of physical activity and decrease in quality of life [17, 25].
Many factors provide stability in the patella-femoral joint. Some of them can be evaluated using imaging methods.
The most significant predictors of dislocation are femoral trochlear dysplasia [20], patella alta [8], tibial tuberosity lateralization [22], increased lateral patellar tilt [8]. It is necessary not only to detect all injuries, but also to evaluate these factors when performing imaging in patients with dislocations. Measurements of these parameters in children have their own features.