Supplemental Table 1. Demographics and Diagnoses Patient Sex Diagnosis Craniofacial
Features Age at Pre-op
CT (mos)
Age at Post-op
CT (mos)
Time between
CTs (mos)
Age at PVDO (mos)
Distraction Length
(mm)
Consolidation period (mos)
1 F Concern
for IH, bilateral superior lambdoid, sagittal synostosis
Occipital narrowing with suboccipital indentation, frontal bossing, sagittal and lambdoid ridging.
7.07 13.07 6.00 8.30 31.6 4.73
2 M Bilateral superior lambdoid, sagittal synostosis
Occipital narrowing with suboccipital indentation, bitemporal narrowing, frontal bossing, sagittal and lambdoid ridging.
4.23 10.46 6.23 7.47 29.7 3.00
3 F Chiari I, bilateral superior lambdoid, posterior sagittal synostosis
Turribrachy- cephaly, occipital narrowing with suboccipital indentation, frontal bossing, sagittal and lambdoid ridging
5.70 20.13 14.43 13.30 29.7 4.18
4 M Bilateral superior lambdoid, sagittal synostosis
Occipital narrowing with suboccipital indentation, frontal bossing, sagittal and lambdoid ridging, posterior digitate impressions.
7.83 17.33 9.53 13.37 30.2 4.00
Mean
±SD
6.21 ± 1.56
15.25 ± 4.31
9.05 ± 3.93
10.61 ± 3.16
30.30 ± 0.90 3.98 ± 0.72
PVDO, posterior vault distraction osteogenesis; mos, months.
Supplemental Table 2. Volumetrics
Absolute Intra-Cranial Volume (mL) Corrected Intra-Cranial Volume (mL)
Patient Pre-op Post-op Δ % Rate
(mL/mm) Δ % Rate
(mL/mm)
1 966.61 1242.13 275.52 28.50 8.72 225.52 23.33 7.14
2 837.09 1148.19 311.10 37.16 10.47 161.10 19.25 5.42
3 894.22 1404.87 510.65 57.11 17.29 300.65 33.62 10.12
4 946.74 1329.65 382.91 40.45 12.68 257.91 27.24 8.54
Mean,
±SD
911.17 ±
58.06 1281.21
± 110.84 370.05 ±
103.83 40.81 ±
11.98 12.29 ±
3.71 236.30 ±
58.82 25.86 ±
6.12 7.81 ± 2.00
Supplemental Table 3. Craniometrics Parameter Pre-op
(mm/degrees)
Post-op (mm/degrees)
Δ %
Anterior Cranial Height Mean±SD
50.93 ± 6.04 58.75 ± 8.11 7.83 ± 2.51 15.19 ± 3.76
Middle Cranial Height Mean±SD
91.93 ± 4.12 100.35 ± 1.61 8.43 ± 4.21 9.32 ± 5.11
Posterior Cranial Height Mean±SD
112.98 ± 4.55 126.13 ± 4.56 13.15 ± 7.45 11.82 ± 7.07
Posterior Cranial Fossa Height Mean±SD
22.03 ± 2.20 26.78 ± 2.07 4.75 ± 1.64 21.99 ± 8.55
Basofrontal angle Mean±SD
111.00 ± 2.94 105.25 ± 4.03 -5.75 ± 5.62 -5.11 ± 4.93
Supplemental Table 4. Measurement of Cranial Indices and Vertex Movement
Patient Pre-op OFD (mm)
Pre- op BPD (mm)
Pre- op CI (mm)
Pre-op Vertex location on OFD (0-1.0)
Post- op OFD (mm)
Post- op BPD (mm)
Post- op CI (mm)
Post-op Vertex location on OFD
(mm)
Vertex Movement
on OFD (0-1.0)
1 144.60 118.8 0.82 0.34 149.00 120.10 0.81 0.71 0.37
2 140.10 114.8 0.82 0.46 155.90 125.30 0.80 0.60 0.14
3 134.40 120.5 0.90 0.38 160.80 139.70 0.87 0.52 0.13
4 153.00 123.2 0.81 0.40 166.20 129.00 0.77 0.48 0.18
Mean ±
SD 143.03
± 7.85 119.3 3
±3.52
0.84 ±
0.04 0.40 ±
0.05 157.98
± 7.31 128.53
± 8.30 0.81 ±
0.04 0.58 ±
0.10 0.21 ± 0.11
OFD, occipitofrontal diameter; BPD, biparietal diameter.
