Irreducible Patellar Dislocation; Incarcerated Into A Distal Femur Fracture: A Case Report and Review of the Literature

Introduction: patellar dislocation is a relatively common injury. however, in rare circumstances along with dislocation of the patella, some types of fractures occur, making the treatment challenging and difficult. case presentation: we report a 28-year-old man with dislocation of the patella, simultaneous hoffa fracture, and incarcerated patella in lateral femur condyle fracture due to a serious motorcycle accident. conclusions: generally, patellar dislocation can be reduced with open reduction or close reduction. there are some indications for open reduction of the patellar dislocation in the literature. we are going to introduce a new indication of open reduction for patellar dislocation and the clinical picture, diagnosis, pathogenesis, and treatment are discussed. finally, the literature is reviewed based on previous studies.