Chatrath Paul, De Cordova Jose, Nouraei S A Reza, Ahmed Jahangir, Saleh Hesham A
Department of Otolaryngology, Charing Cross Hospital, London, England.
Arch Facial Plast Surg. 2007 May-Jun;9(3):184-7. doi: 10.1001/archfaci.9.3.184.
To determine the incidence and nature of facial asymmetry in patients referred for consideration of aesthetic rhinoplasty and to assess whether objective anthropometric facial measurements correlate with subjective perceptions of asymmetry.
Two independent observers measured facial features, including midline to medial and lateral canthi, tragus, ala, and oral commissure distances, in 234 prerhinoplasty surgical photographs. The photographs were rated by 10 independent observers for a global "first impression" of facial symmetry, and the relationship between anthropometric measurement and subjective perception of facial symmetry was explored with logistic regression.
Objectively, 97% of patients had significant degrees of facial asymmetry, with the midline to ala distances showing the most variations and the midline to oral commissures showing the least variations. Subjectively, 38% of results were perceived as asymmetrical, with the degree of midline to lateral alar margin asymmetry being an independent predictor of the perception of facial asymmetry on binary logistic regression (P<.003).
A significant correlation was found between the degree of objective facial asymmetry, particularly in anthropometric nasal measurements, and the subjective perception of a face as asymmetrical in patients requesting aesthetic rhinoplasty. This relationship may be a factor in patients who request rhinoplasty and should be explored in this patient group.
确定因考虑行美容鼻整形术而转诊患者面部不对称的发生率及性质，并评估客观人体测量面部指标与不对称主观感受之间是否存在关联。
两名独立观察者对234张鼻整形术前手术照片中的面部特征进行测量，包括从中线到内眦、外眦、耳屏、鼻翼及口角的距离。10名独立观察者对照片的面部对称性整体“第一印象”进行评分，并通过逻辑回归分析探讨人体测量与面部对称性主观感受之间的关系。
客观上，97%的患者存在显著程度的面部不对称，其中从中线到鼻翼的距离变化最大，从中线到口角的距离变化最小。主观上，38%的结果被认为不对称，在二元逻辑回归分析中，从中线到鼻翼外侧边缘的不对称程度是面部不对称感受的独立预测因素（P<0.003）。
在要求行美容鼻整形术的患者中，发现客观面部不对称程度（尤其是人体测量的鼻部指标）与面部不对称的主观感受之间存在显著相关性。这种关系可能是要求行鼻整形术患者的一个影响因素，应在该患者群体中进一步探究。
