Abstract：
OBJECTIVE: To analyze the upper eyelid contour after Müller\'s muscle conjunctiva resection (MMCR) performed by four different surgeons.
METHODS: Comparative cross-sectional analysis of the pre- and postoperative contours of a control group and four groups of upper lids (n = 88) of 65 patients who underwent MMCR at four international centers. The procedure employed was essentially the same as described by Putterman but performed with different instruments to entrap the posterior lamella. Multiple medial and lateral margin lid distances were measured on Bézier lines expressing the pre- and postoperative lid contours.
RESULTS: Preoperatively, two groups had significant lateral and medial ptosis. After MMCR, the lateral segment of the lid\'s contour was corrected in all groups. In the two groups with more pronounced ptosis, the nasal lid contour was undercorrected.
CONCLUSIONS: In MMCR, regardless of the instrument used to entrap the posterior lamella, the amount of medial tissue resection is essential to avoid postoperative nasal undercorrection.
METHODS: 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 .
METHODS: Comparative cross-sectional analysis of the pre- and postoperative contours of a control group and four groups of upper lids (n = 88) of 65 patients who underwent MMCR at four international centers. The procedure employed was essentially the same as described by Putterman but performed with different instruments to entrap the posterior lamella. Multiple medial and lateral margin lid distances were measured on Bézier lines expressing the pre- and postoperative lid contours.
RESULTS: Preoperatively, two groups had significant lateral and medial ptosis. After MMCR, the lateral segment of the lid\'s contour was corrected in all groups. In the two groups with more pronounced ptosis, the nasal lid contour was undercorrected.
CONCLUSIONS: In MMCR, regardless of the instrument used to entrap the posterior lamella, the amount of medial tissue resection is essential to avoid postoperative nasal undercorrection.
METHODS: 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 .
摘要：
目的：分析由四位不同的外科医生进行Müller\的肌肉结膜切除术（MMCR）后的上眼睑轮廓。
方法：对在四个国际中心接受MMCR的65例患者的对照组和四组上眼睑（n=88）的术前和术后轮廓进行比较分析。所采用的程序与Putterman所描述的基本相同,但是用不同的器械进行以捕获后薄片。在表示术前和术后眼睑轮廓的贝塞尔线上测量多个内侧和外侧边缘眼睑距离。
结果：术前，两组均有显著的外侧和内侧下垂.在MMCR之后,在所有组中，眼睑轮廓的外侧段都得到了校正。在上睑下垂更明显的两组中，鼻盖轮廓矫正不足。
结论：在MMCR中，不管用什么仪器夹住后板,内侧组织切除的数量对于避免术后鼻部矫正不足至关重要。
方法：本期刊要求作者为每篇文章分配一定程度的证据。对于这些循证医学评级的完整描述，请参阅目录或在线作者说明www。springer.com/00266.
方法：对在四个国际中心接受MMCR的65例患者的对照组和四组上眼睑（n=88）的术前和术后轮廓进行比较分析。所采用的程序与Putterman所描述的基本相同,但是用不同的器械进行以捕获后薄片。在表示术前和术后眼睑轮廓的贝塞尔线上测量多个内侧和外侧边缘眼睑距离。
结果：术前，两组均有显著的外侧和内侧下垂.在MMCR之后,在所有组中，眼睑轮廓的外侧段都得到了校正。在上睑下垂更明显的两组中，鼻盖轮廓矫正不足。
结论：在MMCR中，不管用什么仪器夹住后板,内侧组织切除的数量对于避免术后鼻部矫正不足至关重要。
方法：本期刊要求作者为每篇文章分配一定程度的证据。对于这些循证医学评级的完整描述，请参阅目录或在线作者说明www。springer.com/00266.
