Koshy John C, Chike-Obi Chuma J, Hatef Daniel A, Sharabi Safa E, Momoh Adeyiza O, Dauser Robert C, Hollier Larry H
Division of Plastic Surgery, Baylor College of Medicine, Houston, TX, USA.
Ann Plast Surg. 2011 Jan;66(1):65-8. doi: 10.1097/SAP.0b013e3181d6e442.
Isolated unilateral lambdoid craniosynostosis is often confused with posterior positional plagiocephaly because of a general overlap in their clinical presentations; however, distinction between these 2 entities is important because of the differences in appropriate management. Historical literature teaches that ear position is posterior in lambdoid synostosis, whereas it is anterior in positional plagiocephaly. Recently, several cases of anterior ear position in isolated unilateral lambdoid synostosis presented to the Texas Children's Hospital. A review of the cases and literature revealed that there are now 37 cases of unilateral lambdoid synostosis in the literature in which ipsilateral ear position is reported. Twelve cases (32%) had anteriorly displaced ears, 6 cases (16%) were nondisplaced, 7 cases (19%) were displaced posteriorly, 4 cases (11%) anteroinferiorly, 1 case (3%) inferiorly, and 7 cases (19%) posteroinferiorly. Based on this review, it seems that the diagnostic significance of the external ear position is unclear at this point.
孤立性单侧人字缝早闭常因临床表现存在普遍重叠而与后位性斜头畸形相混淆；然而，鉴于适当治疗方法存在差异，区分这两种情况很重要。既往文献表明，在人字缝早闭中耳朵位置靠后，而在后位性斜头畸形中耳朵位置靠前。最近，德克萨斯儿童医院收治了几例孤立性单侧人字缝早闭且耳朵位置靠前的病例。对这些病例及文献的回顾显示，目前文献中有37例单侧人字缝早闭报告了同侧耳朵位置情况。12例（32%）耳朵向前移位，6例（16%）未移位，7例（19%）向后移位，4例（11%）向前下移位，1例（3%）向下移位，7例（19%）向后下移位。基于此回顾，目前看来外耳位置的诊断意义尚不清楚。
