Clinical research on the simulation accuracy of zygomatic reduction using an L-shaped osteotomy by Proplan CMF software
10.3760/cma.j.issn.1009-4598.2017.04.008
- VernacularTitle: Proplan CMF软件模拟颧骨L型截骨降低术准确性的临床研究
- Author:
Yangyang LIN
1
;
Jialong CHENG
;
Zhi DAI
;
Wen MA
;
Na PI
;
Dali SONG
;
Min HOU
Author Information
1. Tianjin Medical University, Tianjin 300070, China
- Publication Type:Clinical Trail
- Keywords:
Zygomatic arch hypertrophy;
Computer simulation;
L-shaped osteotomy;
Three-dimensional model
- From:
Chinese Journal of Plastic Surgery
2017;33(4):267-272
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the surgical prediction accuracy of Proplan CMF software for zygomatic reduction surgery using L-shaped osteotomy.
Methods:Pre-and-postoperative 1-year CBCT data of 26 patients with zygomatic arch hypertrophy were imported in Proplan CMF software during 2014 Jan. to 2016 Jun., the 3D models were reconstructed for simulation of L-shaped osteotomy, characteristic landmarks were selected and 3D point measurement system was established. The measurement result were analyzed by one-way ANOVA. Meanwhile, the overlap color grading charts of preoperative and simulated images were also observed.
Results:The facial width, bilateral zygomatic process angle and facial width index were [(128.56±2.72) mm, (106.87±2.53)°, (108.56±3.02)°and 1.41±0.03] in postoperative result, [(129.49±2.26) mm, (108.68±2.40)°, (108.85±3.02)°and 1.42±0.03]in simulated result and [(135.45±2.45) mm, (102.50±2.60)°, (103.41±2.56)°and 1.48±0.05] in preoperative result, with significant difference between preoperative and postoperative result, or between preoperative and simulated result (P<0.05), while no significance between postoperative and simulated result (P>0.05). The soft tissue zygomatic process distance was(153.25±2.58) mm in preoperative result, (150.23±2.76)mm in postoperative result , (149.36±3.27)mm in simulated result, with no significance between any of two groups result (P>0.05). The zygomatic process distance and bilateral zygomatic process tragal distance were (126.35±2.56) mm, (68.75±2.15) mm and(68.86±3.21) mm in postoperative result, showing significant differences compared with preoperative result [(120.16±3.18) mm, (74.58±3.19) mm and(76.14±3.15) mm] and simulated result [(118.86±3.45) mm, (73.85±3.57) mm and(76.87±2.58) mm] respectively(P<0.05), while zygomatic arch distance was not statistically different among the three groups(P>0.05). It indicated that predictive accuracy of facial width, facial width index, zygomatic process angle, soft tissue zygomatic arch distance was high but the soft tissue zygomatic process distance and zygomatic process tragal distance was relatively low. Meanwhile, the color overlay image showed that predictive accuracy was not good in the zygomatic region while the zygomatic arch area was high.
Conclusions:The predictive accuracy of Proplan CMF software for zygomatic arch hypertrophy is relatively high except for the zygomatic region. Further improvement of the CMF software is needed.
