Subchondral fatigue fracture of the femoral head in young military recruits: Potential risk factors

doi:10.12998/wjcc.v11.i28.6733

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Oct 6, 2023 (publication date) through Nov 22, 2024

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World Journal of Clinical Cases

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2307-8960

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

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World J Clin Cases. Oct 6, 2023; 11(28): 6733-6743
Published online Oct 6, 2023. doi: 10.12998/wjcc.v11.i28.6733

Table 1 Baseline characteristics of subchondral fatigue fracture of the femoral head and osteonecrosis of the femoral head patients

	SFFFH (n = 98)	ONFH (n = 24)	P value	t-value
Age (yr)	20.3 (17.0-25.0)	23.0 (18.0-35.0)	0.020¹	-2.495
Height (cm)	173.6 (160.0-184.0)	175.5 (167.0-183.0)	0.102	-1.674
Weight (kg)	65.5 (50.0-90.0)	68.8 (52.0-90.0)	0.171	-1.400
BMI (kg/m²)	21.7 (17.5-34.5)	22.3 (16.6-28.4)	0.436	-0.790
Treatment timing (mo)	9.6 (0.6-21.0)	6.3 (1-36)	0.002¹	3.175
History of glucocorticoid use or alcoholism (%)	0	66.7	/	/
Bilateral lesions (%)	10.2	62.5	/	/
Collapse of femoral head (%)	69.4	25	/	/

¹Statistical significance.

BMI: Body mass index; ONFH: Osteonecrosis of the femoral head; SFFFH: Subchondral fatigue fracture of the femoral head.

Table 2 Acetabular coverage indicators of subchondral fatigue fracture of the femoral head and osteonecrosis of the femoral head patients

	SFFFH (n = 98)	ONFH (n = 24)	P value	t-value
AVsup (°)	11.7 (11.2-12.3)	11.4 (10.8-12.1)	0.498	0.678
AVcen (°)	12.5 (12.2-12.9)	11.6 (11.1-12.1)	0.005	2.813
AASA (°)	65.0 (64.3-65.6)	69.5 (68.5-70.5)	1.469e-13¹	-7.639
PASA (°)	89.9 (89.3-90.5)	91.1 (90.0-92.2)	0.063	-1.863
SASA (°)	122.8 (122.4-123.2)	122.3 (121.5-123.0)	0.234	1.192
NSA (°)	134.8 (134.4-135.2)	131.4 (130.9-131.9)	2.2e-16¹	10.128
IIA (°)	63.9 (63.5-64.2)	64.5 (64.0-65.0)	0.040¹	-2.064
IPA (°)	31.1 (30.9-31.3)	30.7 (30.3-31.1)	0.068	1.829

¹Statistical significance.

AASA: Anterior acetabular sector angle; AVcen: Acetabular anteversion of the center of the acetabulum; AVsup: Acetabular anteversion of the superior acetabulum; BMI: Body mass index; IIA: Inferior iliac angle; IPA: Ischiopubic angle; NSA: Neck-shaft angle; ONFH: Osteonecrosis of the femoral head; PASA: Posterior acetabular sector angle; SASA: Superior acetabular sector angle; SFFFH: Subchondral fatigue fracture of the femoral head.

Citation: Yang JZ, Chen P, Chen BH, Zhao B. Subchondral fatigue fracture of the femoral head in young military recruits: Potential risk factors. World J Clin Cases 2023; 11(28): 6733-6743
URL: https://www.wjgnet.com/2307-8960/full/v11/i28/6733.htm
DOI: https://dx.doi.org/10.12998/wjcc.v11.i28.6733