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Proximal femoral fracture in ankylosed hip treated with primary total hip arthroplasty: Technical tips with report of two cases.

ABSTRACT: Proximal femoral fracture in an ankylosed hip is a challenging condition. There is no consensus on fixation method for these fractures. In addition, despite union the best outcome possible is the restoration of the pre morbid status. We report two different presentations of proximal femoral fracture in ankylosed hip that were successfully treated with primary total hip arthroplasty. We also discuss the surgical principles, technique and advantages of doing primary total hip arthroplasty in such cases.

SUBMITTER: Malhotra R

PROVIDER: S-EPMC6985166 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:Mortality related to femoral neck fractures remains a challenging health issue, with a high mortality rate at 1 year of follow-up. Three modifiable factors appear to be under control of the surgeon: the choice of the implant, the use of cement and the timing before surgery. The aim of this research project was to study the impact on mortality each of these risk factors play during the management of femoral neck fractures. A large retrospective epidemiological study was performed using a national database of the public healthcare system. The inclusion criteria were patients who underwent joint replacement surgery after femoral neck fracture during the years 2015 to 2017. All data points were available for at least 2 years after the fracture. The primary outcome was mortality within 2 years following the surgery. We evaluated the association between mortality and the type of the implant hemiarthroplasty (HA) versus total hip arthroplasty (THA), cemented versus non cemented femoral stem as well as the timing from fracture to surgical procedure. A multivariate analysis was performed including age, gender, comorbidities/autonomy scores, social category, and obesity. We identified 96,184 patients who matched the inclusion criteria between 2015 and 2017. 64,106 (66%) patients underwent HA and 32,078 (33.4%) underwent THA. After multivariate analysis including age and comorbidities, patients who underwent surgery after 72 h intra-hospital had a higher risk of mortality: Hazard Ratio (HR) = 1.119 (1.056-1.185) p = 0.0001 compared to the group who underwent surgery within 24 h. THA was found to be a protective factor HR = 0.762 (0.731-0.795) p < 0.0001. The use of cement was correlated with higher mortality rate: HR = 1.107 (1.067-1.149) p < 0.0001. Three key points are highlighted by our study in the reduction of mortality related to femoral neck fracture: the use of hemiarthroplasty a surgery performed after 48 h and the use of cement for femoral stem fixation adversely affect mortality risk.

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Proximal femoral fracture in ankylosed hip treated with primary total hip arthroplasty: Technical tips with report of two cases.

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