No. of patient | MIS ASR | TO |
---|
I-C1 (mm) | I-C2 (mm) | I-D (mm) | DF (cm2) | O-C1 (mm) | O-C2 (mm) | O-D (mm) | DF (cm2) |
---|
1 | 105 | 91 | 128 | 3.50 | 76 | 85 | 98 | 5.81 |
2 | 98 | 79 | 110 | 4.83 | 89 | 96 | 111 | 7.35 |
3 | 95 | 74 | 102 | 5.44 | 77 | 93 | 101 | 5.44 |
4 | 78 | 70 | 101 | 4.84 | 74 | 86 | 91 | 5.61 |
- MIS ASR minimally invasive anterior submandibular retropharyngeal key-hole approach, TO transoral approach, I-C1 distance between the incision and C1 vertebra’s anterior tubercle, I-C2 distance between the incision and the ventral base of C2 vertebra, I-D distance between the incision and the deepest point of the dura mater, DF decompressed dura mater surface, O-C1 distance between the orifice and C1 vertebra’s anterior tubercle, O-C2 distance between the orifice and the ventral base of C2 vertebra, O-D distance between the orifice and the deepest point of the dura mater