The Effect of Inpatient Step Count on Complications in the Elderly Patient After Adult Spinal Deformity Surgery

Article Figures & Data

Table 1

Demographic characteristics (N = 185).

Table 2

Surgical characteristics (N = 185).

Variable	<62 ft Walked (n = 93; 50.3%)	≥62 ft Walked (n = 92; 49.7%)	P Value
Osteotomy	55 (59.1%)	59 (64.1%)	0.49
Interbody device placed	62 (66.7%)	53 (57.6%)	0.2
Estimated blood loss, mL	2210 ± 1578	1832 ± 1248	0.08
Operative time, min	513 ± 173	424 ± 144	0.001
Intraoperative complications	15 (16.1%)	9 (9.8%)	0.2
Neuromonitoring changes	5 (5.4%)	3 (3.3%)	0.48
Anesthesia stopped the case	1 (1.1%)	3 (3.3%)	0.31
Delayed extubation	9 (9.7%)	8 (8.7%)	0.82

Table 3

Complications in the 90-d postoperative period N = 185).

Variable (N = 185)	<62 ft Walked (n = 93; 50.3%)	≥62 ft Walked (n = 92; 49.7%)	P Value
Postoperative complications	47 (50.5%)	33 (35.9%)	0.044
Cardiac complications	24 (25.8%)	12 (13.0%)	0.028
Neurological complications	9 (9.7%)	4 (4.3%)	0.16
Deep vein thrombosis/pulmonary embolism	6 (6.5%)	1 (1.1%)	0.056
Pulmonary complications	13 (14.0%)	1 (1.1%)	0.001
Postoperative ileus	9 (9.7%)	1 (1.1%)	0.01
Urinary complications	7 (7.5%)	6 (6.5%)	0.79
Mechanical complications	1 (1.1%)	0 (0%)	0.32
Surgical site infection	5 (5.4%)	2 (2.2%)	0.25
Return to operating room within 90 d	5 (5.4%)	2 (2.2%)	0.25
Length of stay, d	9.5 ± 5.5	6.8 ± 2.5	0.001
Discharge to rehabilitation	64 (71.1%)	33 (35.9%)	0.001

Note: Data presented as mean ± SD or n (%). Statistically significant findings are in boldface.

Table 4

. Comparison of patients with estimated blood loss greater than 2L based on if they were able to mobilize within the first 3 days after surgery.

Variable (N = 62)	0 ft Walked (n = 16; 24.8%)	Mean Distance Walked: 135 ft (n = 46; 75.2%)	P Value
Demographics
Age, y	70.9 ± 3.2	71.6 ± 4.8	0.3
Body mass index	29.2 ± 5.9	26.4 ± 6.1	0.12
Levels fused	11.3 ± 3.2	11.2 ± 3.5	0.94
Surgical characteristics
Osteotomy performed	11 (68.8%)	31 (67.4%)	0.9
Interbody device placed	12 (75.0%)	27 (58.7%)	0.25
Estimated blood loss, mL	4015 ± 1484	3400 ± 1218	0.11
Operative time, min	567 ± 209	480 ± 140	0.14
Perioperative complications
Postoperative complications	9 (56.3%)	19 (41.3%)	0.3
Cardiac complications	5 (31.3%)	4 (8.7%)	0.03
Neurological complications	2 (12.5%)	1 (2.2%)	0.1
Deep vein thrombosis/pulmonary embolism	1 (6.3%)	1 (2.2%)	0.4
Pulmonary complications	3 (18.9%)	2 (4.3%)	0.07
Postoperative ileus	5 (31.3%)	0 (0%)	0.001
Urinary complications	2 (12.5%)	2 (4.3%)	0.25