Management of pertrochanteric fractures in patients over 90 years: In-hospital mortality rate, complications and associated risk factors

Table 1 Study Cohort

Paremeter	> 90 years; n = 71	std	60–89 years; n = 223	Std	p-value
Age	92.5	2.3	79.7	7.4	< 0.001
Gender [%]	85.9% female		67.7% female		0.003
Classification^a	1.9 A1 fracture: 21 (30%) A2 fracture: 33 (46%) A3 fracture: 17 (24%)	0.7	1.8 A1 fracture: 83 (37%) A2 fracture: 95 (43%) A3 fracture: (20%)	0.8	0.26
Treatment strategy^b	1.7 DHS: 30 (42%) PFN: 41 (58%)	0.8	1.6 DHS: 92 (41%) PFN: 124 (56%) BA: 3 (1%) THA: (2%)	0.6	0.90
n/comorbidities	5.2	2.4	4.5	2.8	0.809
n/medications	8.7	2.9	8.6	3.3	0.063
Time: admission to surgery [h]	30.3	43.6	26.0	40.1	0.448
Revisions [%]	9.9		9.0		0.830
Mortality [%]	8.5		0.9		0.001
Complication [%]	41		24		0.005
n/complications	0.6	0.8	0.3	0.7	0.009
In-hospital-stay [days]	12.1	6.7	13.1	9.8	0.408

n/comorbidities: Number of comorbidities; n/medications: number of medications at admission; time: admission to surgery [h]: time between admission to surgery in hours; n/complications: number of complications; std.: standard deviation
^a 1: fracture type A1; 2: fracture type A2; 3: fracture type A3
^b 1: dynamic hip screw (DHS); 2: proximal femur nail (PFN); 3: bipolar arthroplasty (BA); 4: total hip arthroplasty (THA); 5: others

ISSN: 1471-2474