Factors associated with avascular necrosis of the femoral head and nonunion in patients younger than 65 years with displaced femoral neck fractures treated with reduction and internal fixation

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dc.contributor.authorSchweitzer, Daniel
dc.contributor.authorMelero, P.
dc.contributor.authorZylberberg, A.
dc.contributor.authorSalabarrieta, J.
dc.contributor.authorUrrutia Escobar, Julio Octavio
dc.date.accessioned2020-01-14T01:06:50Z
dc.date.available2020-01-14T01:06:50Z
dc.date.issued2013
dc.description.abstractIntroduction: Few studies have evaluated treatment of displaced femoral neck fractures in patients younger than 65 years, and risk factors for AVN or nonunion have not been clearly delineated within this age range. METHOD: To determine factors associated with avascular necrosis of the femoral head (AVN) and nonunion in patients younger than 65 years 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 nonunion was evaluated. RESULTS: Patients who developed AVN were significantly older and suffered lower energy trauma than cases without AVN. No recorded variables were associated with nonunion. Logistic regression determined that only age was independently associated with AVN. Age was a good predictor for developing AVN, with a C statistics of 0.861, and a best cutoff determined at 53.5 years. CONCLUSION: Patients between 53.5 and 65 years presented a higher risk of AVN. A primary arthroplasty should be considered in this subgroup.Introduction: Few studies have evaluated treatment of displaced femoral neck fractures in patients younger than 65 years, and risk factors for AVN or nonunion have not been clearly delineated within this age range. METHOD: To determine factors associated with avascular necrosis of the femoral head (AVN) and nonunion in patients younger than 65 years 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 nonunion was evaluated. RESULTS: Patients who developed AVN were significantly older and suffered lower energy trauma than cases without AVN. No recorded variables were associated with nonunion. Logistic regression determined that only age was independently associated with AVN. Age was a good predictor for developing AVN, with a C statistics of 0.861, and a best cutoff determined at 53.5 years. CONCLUSION: Patients between 53.5 and 65 years presented a higher risk of AVN. A primary arthroplasty should be considered in this subgroup.
dc.fuente.origenFacultad de Medicina
dc.identifier.doi10.1007/s00590-011-0936-1
dc.identifier.issn1633-8065
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/27437
dc.issue.numeroNo. 1
dc.language.isoen
dc.revistaEur J Orthop Surg Traumatoles_ES
dc.rightsacceso abierto
dc.subjectAdultes_ES
dc.subjectAge Factorses_ES
dc.subjectAgedes_ES
dc.subjectArthroplasty, Replacement, Hip/statistics & numerical dataes_ES
dc.subjectFemalees_ES
dc.subjectFemoral Neck Fractures/*complications/*surgeryes_ES
dc.subjectFemur Head Necrosis/*etiologyes_ES
dc.subjectFracture Fixation, Internal/*adverse effects/*contraindications/statistics & numerical dataes_ES
dc.subjectFractures, Ununited/*etiology/prevention & controles_ES
dc.subjectHumanses_ES
dc.subjectLogistic Modelses_ES
dc.subjectMalees_ES
dc.subjectMiddle Agedes_ES
dc.subjectRetrospective Studieses_ES
dc.subjectRisk Factorses_ES
dc.subjectTreatment Outcomees_ES
dc.subject.ddc610
dc.subject.deweyMedicina y saludes_ES
dc.titleFactors associated with avascular necrosis of the femoral head and nonunion in patients younger than 65 years with displaced femoral neck fractures treated with reduction and internal fixationes_ES
dc.typeartículo
dc.volumenVol. 23
sipa.codpersvinculados1008738
sipa.codpersvinculados69910
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