Cemented hemiarthroplasty versus proximal femoral nail antirotation in the management of intertrochanteric femoral fractures in the elderly: a case control study

Table 1 Baseline patient characteristics

Basic information		HA (n = 45)	PFNA (n = 54)	Statistical analyses	P value
Gender	Male	15 (33.33%)	16 (29.63%)	χ² = 0.157	0.69
Gender	Female	30 (66.67%)	38 (70.37%)
Age at the time of injury (years)		81.78 ± 8.18	80.52 ± 8.42	T = 0.7506	0.46
Age at last follow-up (years)		82.60 ± 8.21	82.00 ± 8.46	T = 0.3694	0.71
Side of fracture	Left	22 (48.89%)	28 (51.85%)	χ² = 0.086	0.77
Side of fracture	Right	23 (51.11%)	26 (48.45%)
AO classification	A1.1	11 (24.4%)	9 (16.67%)	χ² = 7.458	0.28
	A1.2	16 (35.56%)	11 (20.37%)
	A1.3	7 (15.56%)	13 (24.07%)
	A2.1	7 (15.56%)	11 (20.37%)
	A2.2	0 (0%)	4 (7.41%)
	A2.3	0 (0%)	0 (0%)
	A3.1	2 (4.44%)	3 (5.56%)
	A3.2	2 (4.44%)	3 (5.56%)
	A3.3	0 (0%)	0 (0%)
ASA grade	I	6 (13.33%)	11 (20.37%)	χ² = 1.313	0.73
	II	29 (64.44%)	33 (61.11%)
	III	8 (17.78%)	9 (16.67%)
	IV	2 (4.44%)	1 (1.85%)
Singh index	I	1 (2.22%)	1 (1.85%)	χ² = 5.221	0.27
	II	5 (11.11%)	16 (18.52%)
	III	13 (28.89%)	12 (22.22%)
	IV	14 (31.11%)	12 (22.22%)
	V	12 (26.67%)	13 (24.07%)
Comorbidities	Hypertension	18 (40.00%)	24 (44.44%)	χ² = 1.198	0.66
	Cardiovascular and cerebrovascular disease	20 (44.44%)	17 (31.48%)	χ² = 1.762	0.18
	Diabetes mellitus	12 (26.67%)	11 (20.37%)	χ² = 0.546	0.46
	Chronic respiratory disease	12 (28.89%)	8 (14.81%)	χ² = 2.909	0.09
	Neurological disease	9 (20.00%)	12 (22.22%)	χ² = 0.073	0.79
	Thrombogenesis	6 (13.33%)	4 (7.41%)	χ² = 0.949	0.33
	Urological disease	1 (2.22%)	4 (7.41%)	χ² = 1.376	0.24

Table 1. The mean ± SD age at injury was 81.78 ± 8.18 years for the HA group and 80.52 ± 8.42 years for the PFNA group. The age at last follow-up was 82.60 ± 8.20 years in the HA group and 82.00 ± 8.46 years in the PFNA group. There were 50 left-sided and 49 right-sided fractures in total. The groups were similar in regard to sex (P = 0.69; χ² = 0.157), AO classification (P = 0.28; χ² = 7.458), ASA grade (P = 0.73; χ² = 1.313), and Singh index (P = 0.27; χ² = 5.221). The two groups had mostly similar rates of comorbidities including hypertension (P = 0.66; χ² = 1.198), cardiovascular and cerebrovascular disease (P = 0.18; χ² = 1.762), diabetes mellitus (P = 0.46; χ² = 0.546), chronic respiratory disease (P = 0.09; χ² = 2.909), neurologic disease (P = 0.79; χ² = 0.073), thrombogenesis (P = 0.33; χ² = 0.949), and urologic disease (P = 0.24; χ² = 1.376). There was no difference in the basic underline diseases.
Abbreviations: ASA American Society of Anesthesiologists, HA Hemiarthroplasty, PFNA Proximal femoral nail antirotation

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