Comparing complications of outpatient management of slipped capital femoral epiphysis and Blount’s disease: A database study

Table 1 Patient demographics, n (%)

	SCFE		Blount’s disease
	Outpatient (n = 553)	Inpatient (n = 1244)	Outpatient (n = 78)	Inpatient (n = 111)
Age (yr), mean ± SD	12.6 ± 1.4	12.5 ± 1.6	6.0 ± 2.8a	6.7 ± 2.0a
Sex
Female	181 (32.73)a	490 (39.39)a	52 (66.7)	70 (63.1)
Male	372 (67.27)a	754 (60.61)a	26 (33.3)	41 (36.9)
Weight (kg), mean ± SD	71.5 ± 18.2	73.3 ± 20.3	38.6 ± 23.5a	48.6 ± 27.1a
Missing	2	3	0	0
Race
White	248 (44.85)a	429 (34.49)a	17 (21.8)	20 (18.0)
Black	153 (27.67)a	441 (35.45)a	46 (60.2)	63 (56.8)
Hispanic	74 (13.38)a	158 (12.7)a	6 (7.7)	13 (11.7)
Other minorities	33 (5.6)a	41 (3.29)a	3 (3.8)	5 (4.5)
Unknown/Not reported	47(8.5)a	175 (14.07)a	6 (7.7)	10 (9.0)
ASA
1	182 (32.91)	399 (32.07)	24 (30.8)	21 (18.9)
2	340 (61.48)	725 (58.28)	42 (53.8)	61 (55.0)
3	29 (5.24)	116 (9.32)	12 (15.4)	27 (24.3)
4	1 (0.18)	1 (0.08)	0	2 (1.8)
None assigned	1 (0.18)	3 (0.24)	0	0

^aP < 0.05 between groups.

ASA: American Society of Anesthesiologists Classification; SCFE: Slipped capital femoral epiphysis.

Table 2 Adverse outcomes in slipped capital femoral epiphysis patients, n (%)

	Outpatient (n = 544)	Inpatient (n = 1244)
Complication
Non-routine discharge	6 (1.1)	5 (0.40)
Superficial SSI	1 (0.18)	5 (0.40)
Superficial wound dehiscence	1 (0.18)	6 (0.48)
Postop C. diff infection	1 (0.18)	0
Bleeding requiring transfusion	0a	15 (1.21)a
Venous thrombosis	0	1 (0.08)
Total number of patients with complications	9 (1.65)	30 (2.41)
Total number of complications	9 (1.65)	32 (2.57)
Reoperation
SCFE	0	7 (0.56)
Hip infection	0	1 (0.08)
Femoral neck fracture	3 (0.55)	1 (0.08)
Closed reduction of hip dislocation	1 (0.18)	0
Fracture of hip/pelvis	0	1 (0.08)
Not documented	0	2 (0.20)
Total complication	4 (0.73)	12 (0.96)
Readmission without operation
Superficial SSI	0	1 (0.08)
Pain	0	3 (0.24)
Not documented	2 (0.24)	4 (0.32)
Total readmission	6	18

^aP < 0.05 between groups.

SCFE: Slipped capital femoral epiphysis; SSI: Surgical site infection.

Table 3 Adverse outcomes in Blount’s patients, n (%)

Adverse outcome	Outpatient (n = 78)	Inpatient (n = 111)
Complication
Non-routine discharge	1 (1.3)	0
Superficial SSI	1 (1.3)	5 (4.5)
Superficial wound dehiscence	4 (5.1)	2 (1.8)
Sepsis	1 (1.3)	0
Total complications	7 (9.0)	7 (6.3)
Readmission without operation
Not documented	0	1 (0.9)
Reoperation
Incision and drainage	1 (1.3)	0
Neuroplasty (common peroneal nerve)	0	1 (0.9)
Total readmissions	1 (1.3)	2 (1.8)

No P values < 0.05. SSI: Surgical site infection.