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首页> 外文期刊>Aesthetic plastic surgery >Impact of Dorsal Preservation Rhinoplasty Versus Dorsal Hump Resection on the Internal Nasal Valve: a Quantitative Radiological Study
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Impact of Dorsal Preservation Rhinoplasty Versus Dorsal Hump Resection on the Internal Nasal Valve: a Quantitative Radiological Study

机译：背部保存鼻落成形术对外鼻腔瓣膜切口对外鼻腔的影响：定量放射学研究

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Background This study evaluates the impact of different hump takedown techniques, namely the conventional hump resection with midvault reconstruction, the push-down (PD) and the let-down (LD) procedures, on the INV dimensions. Methods In this cadaveric study, six heads were divided randomly into either the conventional hump resection technique (Group A; n = 6 sides) or DPR techniques (n = 6 sides). This latter group was subdivided such that initially a PD procedure was performed (Group B; n = 6 sides), followed by a LD procedure on the same heads (Group C; n = 6 sides). A validated radiological method was used to measure the INV angle and cross-sectional area (CSA) in a modified coronal plane both pre- and post-procedurally. Results Group A did not show significant reduction in the INV angle nor in CSA (p = 0.068 and p = 0.156, respectively). In the push-down group (B), we observed a mean change of 2.05 degrees in the angles and 0.3 cm(2) in the CSA (p = 0.0163 and p < 0.001, respectively). The LD group (C) did not show significant reduction in the INV angle nor in CSA (p = 0.437 and p = 0.331, respectively). Conclusion Neither the conventional hump resection nor the LD DPR technique reduced the INV dimensions. However, the PD preservation technique significantly reduced the INV dimensions. Level of Evidence III This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.
机译：背景技术本研究评估了不同驼峰挖掘技术的影响，即常规驼峰切除的云库重建，下推（PD）和令人失望（LD）程序，在INV尺寸上。方法在该尸体研究中，将六个头随机分成常规驼峰切除技术（A组; n = 6侧）或DPR技术（n = 6侧）。后一个组被细分，使得最初进行PD程序（B组; n = 6边），然后在同一头部上进行LD过程（组C; n = 6边）。使用验证的放射学方法用于测量预先和后处理的改性冠状平面中的INV角度和横截面积（CSA）。结果A组未显示INV角度的显着降低，也没有CSA（P = 0.068和P = 0.156）。在下压组（B）中，我们观察到CSA中的角度和0.3cm（2）中的2.05度的平均变化（P = 0.0163和P <0.001）。 LD组（C）没有显示INV角度也没有显着降低CSA（P = 0.437和P = 0.331）。结论常规驼峰切除和LD DPR技术均未降低INV尺寸。然而，PD保存技术显着降低了INV尺寸。证据III级别本期刊要求提交人向每篇文章分配一定程度的证据。有关这些基于证据的药物评级的完整描述，请参阅内容表或在线指示给作者www.springer.com/00266。

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