Linden Olivia E, Taylor Helena O, Vasudavan Sivabalan, Byrne Margaret E, Deutsch Curtis K, Mulliken John B, Sullivan Stephen R
Cleft Palate Craniofac J. 2017 Nov;54(6):715-719. doi: 10.1597/16-073. Epub 2016 Jul 21.
To evaluate nasal symmetry using three-dimensional photogrammetry following primary tip rhinoplasty with or without an internal splint in patients with unilateral complete cleft lip/palate.
We captured three-dimensional images of patients with unilateral complete cleft lip/palate who underwent nasolabial repair by rotation-advancement of the lip and primary tip rhinoplasty, either with or without an internal resorbable splint, and normal control subjects. We assessed nasal symmetry by identifying the plane of maximum symmetry and the root-mean-square deviation between native and reflected surfaces.
PATIENTS/PARTICIPANTS: We imaged 38 controls and 38 subjects with repaired unilateral complete cleft lip/palate (20 with, 18 without an internal splint).
Nasal asymmetry root-mean-square deviation clustered between 0.19 and 0.50 mm (median = 0.24 ± 0.08 mm) for controls; whereas, those with repaired unilateral complete cleft lip/palate ranged from 0.4 to 1.5 mm (median = 0.75 ± 0.40 mm). Although root-mean-square deviation ranges overlapped, patients with repaired unilateral complete cleft lip/palate had significantly greater asymmetry than controls (P < .001). We found no difference in asymmetry between patients with or without an internal splint (P = .5).
Three-dimensional photogrammetry was used to successfully compare symmetry among different patient and control groups. Although "normal" nasal symmetry was attained in some patients following cleft lip/nasal repair, most had persistent asymmetry compared with normal controls. Placement of a resorbable internal splint did not improve symmetry in patients with unilateral complete cleft lip/palate.
采用三维摄影测量法评估单侧完全性唇腭裂患者在初次鼻尖整形术后使用或不使用内部夹板时的鼻对称性。
我们采集了单侧完全性唇腭裂患者的三维图像，这些患者通过唇部旋转推进和初次鼻尖整形术进行鼻唇修复，术中使用或不使用可吸收内部夹板，同时采集了正常对照者的三维图像。我们通过确定最大对称平面以及原始表面和反射表面之间的均方根偏差来评估鼻对称性。
患者/参与者：我们对38名对照者和38名单侧完全性唇腭裂修复患者（20名使用内部夹板，18名未使用内部夹板）进行了成像。
对照者的鼻不对称均方根偏差集中在0.19至0.50毫米之间（中位数 = 0.24 ± 0.08毫米）；而单侧完全性唇腭裂修复患者的均方根偏差范围为0.4至1.5毫米（中位数 = 0.75 ± 0.40毫米）。尽管均方根偏差范围有重叠，但单侧完全性唇腭裂修复患者的不对称程度明显高于对照者（P <.001）。我们发现使用或不使用内部夹板的患者在不对称程度上没有差异（P =.5）。
三维摄影测量法成功用于比较不同患者组和对照组之间的对称性。尽管部分唇裂/鼻修复术后患者达到了“正常”鼻对称性，但与正常对照者相比，大多数患者仍存在持续性不对称。可吸收内部夹板的放置并未改善单侧完全性唇腭裂患者的对称性。
