Zhongguo gu shang = China journal of orthopaedics and traumatology · 2022
[Femoral head necrosis rate and risk factors after internal fixation of femoral neck fracture:a Meta-analysis].
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Wang Huan, Han Chun-Xia, Ai Zi-Sheng
Аннотация
OBJECTIVE: To study the incidence and risk factors of osteonecrosis of the femoral head (ONFH) after internal fixation in adult patients with femoral neck fracture (FNF) after 2000, and identify high-risk population of ONFH.
METHODS: PubMed, Medline, The Cochrane Library, CNKI, Wanfang and VIP Database were searched to collect all the literatures on ONFH and related risk factors after internal fixation of FNF from January 1th 2000 to July 1th 2020. Study extraction was performed according to inclusion and exclusion criteria. Endnote X9 and Excel 2019 were used for literatures extraction, management and data entry, and R Studio 3.6.5 software was used for Meta-analysis. Subgroup analysis, sensitivity analysis and publication bias detection were used to explore the sources of heterogeneity and the reliability of the evaluation results.
RESULTS: A total of 16 studies with 5521 patients were included. Meta-analysis showed that the incidence of ONFH after internal fixation for adult FNF was 14.5% [95% CI(0.126-0.165)]. Fracture displacement[OR=0.27, 95%CI(0.21-0.35)] and reduction quality [OR=0.15, 95%CI(0.09-0.27)] were related risk factors for ONFH. The results of subgroup rate analysis showed that the non-displaced fracture necrosis rate was 6.2%[95%CI(0.051-0.077)] and the displaced fracture necrosis rate was 20.4% [95%CI(0.166-0.249)];the good reduction fracture necrosis rate was 8.3%[95%CI(0.072-0.095)] and the poor reduction fracture necrosis rate was 35.5%[95%CI(0.233-0.500)]. The included literatures have good consistency and no publication bias.
CONCLUSION: After 2000, the total incidence of ONFH after internal fixation of adult FNF has decreased, while the necrosis rates of patients with displaced fracture and poor reduction are still at a high level. The interval between injury and surgery was not analyzed in this study because of the inconstant division in the original literature.
METHODS: PubMed, Medline, The Cochrane Library, CNKI, Wanfang and VIP Database were searched to collect all the literatures on ONFH and related risk factors after internal fixation of FNF from January 1th 2000 to July 1th 2020. Study extraction was performed according to inclusion and exclusion criteria. Endnote X9 and Excel 2019 were used for literatures extraction, management and data entry, and R Studio 3.6.5 software was used for Meta-analysis. Subgroup analysis, sensitivity analysis and publication bias detection were used to explore the sources of heterogeneity and the reliability of the evaluation results.
RESULTS: A total of 16 studies with 5521 patients were included. Meta-analysis showed that the incidence of ONFH after internal fixation for adult FNF was 14.5% [95% CI(0.126-0.165)]. Fracture displacement[OR=0.27, 95%CI(0.21-0.35)] and reduction quality [OR=0.15, 95%CI(0.09-0.27)] were related risk factors for ONFH. The results of subgroup rate analysis showed that the non-displaced fracture necrosis rate was 6.2%[95%CI(0.051-0.077)] and the displaced fracture necrosis rate was 20.4% [95%CI(0.166-0.249)];the good reduction fracture necrosis rate was 8.3%[95%CI(0.072-0.095)] and the poor reduction fracture necrosis rate was 35.5%[95%CI(0.233-0.500)]. The included literatures have good consistency and no publication bias.
CONCLUSION: After 2000, the total incidence of ONFH after internal fixation of adult FNF has decreased, while the necrosis rates of patients with displaced fracture and poor reduction are still at a high level. The interval between injury and surgery was not analyzed in this study because of the inconstant division in the original literature.