![]() Surgeons are accustomed to performing postoperative laboratory tests routinely after joint replacement without evidence as to whether they are necessary. Hip hemiarthroplasty is considered one of the most effective orthopaedic surgeries to aim for pain relief and early mobilization in patients with displaced femoral neck fractures. Displaced fractures (Garden type III and IV) comprise the majority of hip fractures. Furthermore, the main alterations will occur in Asian countries, where the percentage of hip fracture is projected to increase from 26% in 1990 to 45% in 2050. With cautious estimations based on existing data, the prevalence of hip fractures could rise to 21.3 million in 2050. In the elderly population, the occurrence of hip fracture has been increasing rapidly due to the ageing of the population. Nevertheless, for patients with identified risk factors, postoperative laboratory tests are still required to identify the abnormalities that need to be managed. Conclusionsīecause 92.5% of laboratory tests did not influence postoperative management, the authors suggest that routine laboratory tests after hip hemiarthroplasty for FNFs are less instructive for the majority of elderly patients. Furthermore, a higher CCI has been identified as a risk factor for patients needing clinical interventions related to laboratory abnormalities. Multivariate logistic regression analysis reported that a higher Charlson comorbidity index (CCI) ( P = 0.03), abnormal preoperative haemoglobin level ( P < 0.01), higher intraoperative blood loss ( P < 0.01) and less frequent tranexamic acid use ( P = 0.05) were risk factors for abnormal postoperative laboratory tests. Only a minority of the included patients (7.5%) needed medical intervention to treat postoperative laboratory testing abnormalities. Abnormal postoperative laboratory tests were found in 265 patients (82.6%). ResultsĪ total of 321 elderly patients (> 75 years of age) were ultimately enrolled for analysis. Logistic regression models were calculated to identify risk factors. Patient characteristic features and laboratory testing values were recorded. This retrospective study reviewed 735 consecutive patients with femoral neck fractures (FNFs) who underwent hip hemiarthroplasty at a single tertiary academic organization. This study aimed to assess the role of routine postoperative laboratory tests for femoral neck fractures in elderly patients who underwent hip hemiarthroplasty and to evaluate the risk factors for postoperative laboratory testing abnormalities and related interventions. However, the role of routine postoperative laboratory tests in primary hip arthroplasty is currently in doubt. Performing postoperative laboratory tests following joint arthroplasty is a regular practice.
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