@mastersthesis{10336/2744, author = {Salavarrieta Varela, Edward Julián}, author = {Melero, Patricio}, author = {Urrutia, Julio}, year = {2012}, url = {http://repository.urosario.edu.co/handle/10336/2744}, abstract = {Introduction: Few studies have evaluated treatment of displaced femoral neck fractures in patients younger than 65 years old, and risk factors for AVN or non-union have not been clearly delineated within this age range. Method: To determine factors associated to avascular necrosis of the femoral head (AVN) and non-union in patients younger than 65 years old with displaced femoral neck fractures treated with reduction and internal fixation, we conducted a retrospective study of 29 displaced femoral neck fractures in 29 consecutive patients treated at a single institution. The influence of age, trauma energy, open reduction, and time from fracture to treatment on development of AVN and non-union were evaluated. Results: Patients who developed AVN were significantly older and suffered lower energy trauma than cases without AVN. No recorded variables were associated to non-union. Logistic regression determined that only age was independently associated to AVN. Age was a good predictor for developing AVN, with a C-statistics of 0.861, and a best cut-off determined at 53.5 years. Conclusion: Patients between 53.5 and 65 years old presented a higher risk of AVN. A primary arthroplasty should be considered in this subgroup.}, keywords = {Fracturas del cuello femoral}, keywords = {Necrosis avascular de la cadera}, title = {Factors associated to avascular necrosis of the femoral head and non-union in patients younger than 65 years old with displaced femoral neck fractures treated with reduction and internal fixation.}, publisher = {Universidad del Rosario}, keywords = {Femoral neck fractures}, keywords = {Avascular necrosis}, }