Archives of Plastic Surgery

Korean Society of Plastic and Reconstructive Surgeons (대한성형외과학회)
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Attachment distribution of pectoral muscle origins identified in dual-plane breast implant insertion

  • Nam, Su Bong (Department of Plastic and Reconstructive Surgery, Pusan National University School of Medicine) ;
  • Song, Kyung Ho (Four Seasons Plastic Surgery Clinic) ;
  • Seo, Jung Yeol (Department of Plastic and Reconstructive Surgery, Pusan National University School of Medicine) ;
  • Choi, June Seok (Department of Plastic and Reconstructive Surgery, Pusan National University School of Medicine) ;
  • Park, Tae Seo (Department of Plastic and Reconstructive Surgery, Pusan National University School of Medicine) ;
  • Lee, Jae Woo (Department of Plastic and Reconstructive Surgery, Pusan National University School of Medicine) ;
  • Kim, Ju Hyung (Department of Plastic and Reconstructive Surgery, Pusan National University School of Medicine) ;
  • Kim, Min Wook (Department of Plastic and Reconstructive Surgery, Pusan National University School of Medicine) ;
  • Kim, Hyun Yeol (Breast Surgery Center, Pusan National University Yangsan Hospital) ;
  • Jung, Yun Ju (Breast Surgery Center, Pusan National University Yangsan Hospital) ;
  • Kim, Choongrak (Department of Statistics, Pusan National University)
  • Received : 2019.07.16
  • Accepted : 2020.01.08
  • Published : 2020.03.15
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Abstract

Background 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. Methods 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. Results 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. Conclusions 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.

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References

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