Ultrasound guided femoral nerve blocks as a compulsory pain protocol in femoral neck fractures

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World Journal of Orthopedics

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2218-5836

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Retrospective Cohort Study

World J Orthop. Dec 18, 2025; 16(12): 102402
Published online Dec 18, 2025. doi: 10.5312/wjo.v16.i12.102402

Table 1 Demographic and clinical characteristics

Characteristic	Overall (n = 1577)	Standard analgesia protoco (n = 1190)	US guided femoral nerve block (n = 387)	P value¹
Age (years), mean (SD)	76 (15)	75 (15)	80 (11)	< 0.001
Gender, n/N (%)				0.7
Female	1016/1577 (64)	770/1190 (65)	246/387 (64)
Male	561/1577 (36)	420/1190 (35)	141/387 (36)
ASA score, n/N (%)				0.6
1	38/1045 (3.6)	32/776 (4.1)	6/269 (2.2)
2	579/1045 (55)	427/776 (55)	152/269 (57)
3	377/1045 (36)	279/776 (36)	98/269 (36)
4	51/1045 (4.9)	38/776 (4.9)	13/269 (4.8)
Unknown	532	414	118
BMI, mean (SD)	25.5 (4.7)	25.5 (4.7)	25.5 (4.7)	0.8
CVA, n/N (%)	21/1577 (1.3)	17/1190 (1.4)	4/387 (1.0)	0.7
T2DM, n/N (%)	343/1577 (22)	250/1190 (21)	93/387 (24)	0.2
IHD, n/N (%)	315/1577 (20)	244/1190 (21)	71/387 (18)	0.4
Intra capsular fracture, n/N (%)	9/1577 (0.6)	7/1190 (0.6)	2/387 (0.5)	> 0.9
Extra capsular fracture, n/N (%)	220/1577 (14)	154/1190 (13)	66/387 (17)	0.052
Time to surgery (hours), mean (SD)	38 (60)	39 (68)	32 (22)	0.0218
Hospitalization days (days), mean (SD)	15 (14)	15 (14)	16 (13)	0.3

¹Statistical tests performed: Wilcoxon rank-sum test; χ² test of independence; Fisher's exact test.

CVA: Cerebrovascular accident; BMI: Body mass index; T2DM: Type 2 diabetes mellitus; US: Ultrasound; IHD: Ischemic heart disease.

Citation: Klassov Y. Ultrasound guided femoral nerve blocks as a compulsory pain protocol in femoral neck fractures. World J Orthop 2025; 16(12): 102402
URL: https://www.wjgnet.com/2218-5836/full/v16/i12/102402.htm
DOI: https://dx.doi.org/10.5312/wjo.v16.i12.102402

Klassov Y. Ultrasound guided femoral nerve blocks as a compulsory pain protocol in femoral neck fractures. World J Orthop 2025; 16(12): 102402 [PMID: 41480506 DOI: 10.5312/wjo.v16.i12.102402]

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