@mastersthesis{10336/2744,
author = {Salavarrieta Varela, Edward Julián},
author = {Melero, Patricio},
author = {Urrutia, Julio},
year = {2012},
month = {1},
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},
}