Maxillary sinus haziness and facial swelling following suction drainage in the maxilla after orthognathic surgery

Maxillofacial Plastic and Reconstructive Surgery

Table 1 Results of maxillary sinus haziness and facial swelling following suction drainage in the maxilla according to the drain insertion after orthognathic surgery

	Orthognathic surgery patients (n = 66)
Variables	J-P drain in both the mandibular and maxillary areas (n = 41)	J-P drain insertion only in the mandibular area (n = 25)	P
Sex (male:female)	23:18	14:11	.597
Age (mean ± SD) years	22.2 ± 3.5	23.8 ± 6.3	.274
Suction blood volume (mean ± SD) (mL)	224.8 ± 102.0	144.4 ± 67.9	< .001*
BMI (kg/m²)	22.8 ± 3.3	22.8 ± 3.3	.97
Maxillary haziness (mean ± SD) (%)	57.5 ± 24.2	65.5 ± 20.3	.043*
Facial swelling volume (mean ± SD) (mm³)	7250 ± 3483	7575 ± 3942	.728

*Significant: P < 0.05
†Abbreviation: J-P Jackson-Pratt (J-P) suction tube, BMI body mass index
Suction blood volume; blood volume using J-P drain including mandibular J-P drain during 2 postoperative days
Using the unpaired Student’s t test, we compared the age, BMI, maxillary haziness, and facial swelling volume between the two groups
Suction blood volume of J-P drain in both the mandibular and maxillary areas (n = 41): sum of drain volume in maxillary and the mandibular area