Evaluation of postoperative changes in condylar positions after orthognathic surgery using balanced orthognathic surgery system

Maxillofacial Plastic and Reconstructive Surgery

Table 1 Changes in coordinate values of each patient’s preoperative and postoperative condylar heads

Patient number	Age/sex	Surgery type	Change in coordinate values of left condylar head after orthognathic surgery			Change in coordinate values of right condylar head after orthognathic surgery
Patient number	Age/sex	Surgery type	x	y	z	x	y	z
Patient 1	29/M	Mandibular surgery	0.52	−0.58	0.81	−0.21	−1.91	−0.32
Patient 2	20/F	Bimaxillary surgery	0.02	−0.89	0.14	−0.63	−0.48	0.38
Patient 3	24/M	Bimaxillary surgery	0.36	−1.37	−0.13	0.45	−1.33	−0.26
Patient 4	24/F	Bimaxillary surgery	−0.55	−1.46	−0.66	1.08	−2.29	−0.10
Patient 5	24/M	Bimaxillary surgery	−0.03	−0.30	0.88	0.96	0.08	0.23
Patient 6	20/F	Bimaxillary surgery	0.38	−1.52	0.01	−0.22	−1.76	1.06
Patient 7	22/F	Bimaxillary surgery	−0.11	−2.00	0.03	0.36	−0.94	−0.40
Patient 8	25/F	Bimaxillary surgery	1.78	−0.98	−0.46	−0.72	−1.59	−0.70
Patient 9	24/M	Mandibular surgery	−0.24	−0.76	−0.24	−0.28	−0.53	−0.02
Patient 10	26/F	Mandibular surgery	−0.62	−1.19	−0.37	0.56	−0.44	0.24
Patient 11	18/F	Mandibular surgery	−0.69	−0.52	−0.27	−0.91	−1.14	0.41

’–‘value on the x-axis indicates right; ‘+’value on the x-axis indicates left; ‘–‘value on the y-axis indicates downward; ‘+’value on the y-axis indicates impaction; ‘–‘value on the z-axis indicates advance; ‘+’value on the z-axis indicates setback