Nam Su Bong, Song Kyung Ho, Seo Jung Yeol, Choi June Seok, Park Tae Seo, Lee Jae Woo, Kim Ju Hyung, Kim Min Wook, Kim Hyun Yeol, Jung Yun Ju, Kim Choongrak
Department of Plastic and Reconstructive Surgery, Pusan National University School of Medicine, Yangsan, Korea.
Four Seasons Plastic Surgery Clinic, Busan, Korea.
Arch Plast Surg. 2020 Mar;47(2):160-164. doi: 10.5999/aps.2019.00906. Epub 2020 Mar 15.
Implant-based dual-plane augmentation mammoplasty requires accurate separation of the pectoralis major muscle (PMM) at its origins. The authors identified the PMM origins during breast reconstruction surgery with the goal of providing additional information on subpectoral implant insertion for reconstructive or aesthetic purposes.
This study was conducted on 67 patients who underwent breast reconstruction surgery at the breast center of our hospital between November 2016 and June 2018. In total, 34 left and 39 right hemithoraces were examined. The left and right hemithoraces were each divided into 15 zones to determine the percentage of PMM attachments in each zone. The distribution of PMM origins in each zone was examined to identify any statistically significant differences.
There were no statistically significant differences in the origins of the PMM between the right and left hemithoraces. The percentage of attachments increased moving from the fourth to the sixth rib and from the lateral to the medial aspect.
The anatomical findings of this study could be used as a reference for accurate dissection of the origins of the PMM for the preparation of the subpectoral pocket for subpectoral implant placement.
基于植入物的双平面隆乳术需要在胸大肌（PMM）起点处进行精确分离。作者在乳房重建手术中确定了胸大肌起点，目的是为重建或美容目的的胸肌下植入物植入提供更多信息。
本研究对2016年11月至2018年6月期间在我院乳腺中心接受乳房重建手术的67例患者进行。共检查了34个左半胸和39个右半胸。将左、右半胸各分为15个区域，以确定每个区域胸大肌附着的百分比。检查每个区域胸大肌起点的分布，以确定是否存在统计学上的显著差异。
右半胸和左半胸胸大肌起点之间无统计学显著差异。附着百分比从第四肋骨到第六肋骨以及从外侧到内侧逐渐增加。
本研究的解剖学发现可作为精确解剖胸大肌起点以制备胸肌下植入物放置的胸肌下腔隙的参考。
