Maxillomandibular Advancement in the Management of Obstructive Sleep Apnea

Table 3

Comparison of parameters between patients cured versus those with residual obstructive sleep apnea following maxillomandibular advancement (MMA).

	Post-MMA
	Surgical cure (AHI < 5) 𝑁=10; 42%; (mean ± SD)	𝑛	No cure (AHI ≥ 5) 𝑁=14; 58%; (mean ± SD)	𝑛	𝑃 value
Pre-MMA				14
Age (years)	44.4±7.8	10	51.0±12.0	14	0.07
Male (%)	80	8	71.4	10	0.5
BMI	30.3±4.4	9	31.0±6.5	12	0.9
AHI (events/h)	46.5±31.9	10	44.6±23.0	14	0.9
SpO2 nadir (%)	81.1±9.6	10	81.3±6.6	12	0.7
Previous phase-I surgery^1 (%)	62.5	5/8	37.5	3/8	0.2
Surgery
Maxillary advancement (mm)	9.2±1.9	9	9.6±0.8	12	0.8
Mandibular advancement (mm)	9.1±2.0	9	9.0±2.0	12	0.9
Post-MMA
BMI (kg/m^2)	29.2±7.1	8	30.0±3.8	13	0.9
% Change in BMI (%)	−1.7±5.5	7	0.5±6.7	11	0.6
AHI (events/h)	1.0±0.5	10	12.7±11.6	14	<0.0001
% Change in AHI (%)	−96.5±3.5	10	−63.2±40.1	14	<0.0001
SpO2 nadir (%)	88.8±4.2	10	84.1±5.2	14	0.0221
% Change in SpO2 nadir (%)	10.9±14.9	10	3.9±12.8	12	0.2

Abbreviations: SD: standard deviation; BMI: body mass index (kg/m²); AHI: apnea-hypopnea index (apneas and hypopneas/hour sleep); SpO₂: oxyhemoglobin saturation.
¹Patients who underwent an upper airway procedure prior to MMA.