Identifying Preoperative Factors Associated with the Volume Discrepancy in Patients Undergoing Breast Reconstruction with the Extended Latissimus Dorsi Musculocutaneous Flap Coverage

Jun Hyeok Kim, Jong Keun Song, Sang Oon Baek, Jun Yong Lee, Gyeol Yoo, Eun Young Rha
Aesthetic Plastic Surgery 2019 June 19

BACKGROUND: The latissimus dorsi (LD) flap is a versatile option for breast reconstruction. However, the indications are limited because of volume discrepancy between the breast and the flap. We conducted this study to identify preoperative factors associated with the volume discrepancy in patients undergoing breast reconstruction with the extended LD flap.

METHODS: A retrospective study was performed in 69 patients (69 breasts) who underwent breast reconstruction with the extended LD flap between March 2015 and March 2018. We evaluated age, body weight, height, preoperative body mass index (BMI), postoperative BMI, breast skin defect size, breast volume, flap volume, and volume discrepancy [breast volume - flap volume].

RESULTS: Mean age, height, body weight, preoperative BMI, postoperative BMI, skin defect size, breast volume, flap volume, and volume discrepancy were 45.6 ± 7.1, 157.8 ± 0.1, 59 ± 8.1, 23.7 ± 3.2, 23.5 ± 3.3, 16.5 ± 9.3, 252.2 ± 107.1, 229.4 ± 95.6, and 32.6 ± 31.4, respectively. Spearman's rank correlation coefficients indicated significant positive linear correlations between volume discrepancy and preoperative BMI (correlation coefficient = 0.267, P = 0.027), volume discrepancy and breast volume (correlation coefficient = 0.472, P < 0.001), and between volume discrepancy and skin defect size (correlation coefficient = 0.609, P < 0.001). Stepwise multiple regression analysis yielded the following formula: predicted log volume discrepancy (ml) = 1.2891 + 0.0639 × skin defect size + 0.0025 × breast volume (R2  = 0.421).

CONCLUSION: Skin defect size and breast volume were preoperative factors associated with volume discrepancy in patients who have undergone breast reconstruction with the extended LD flap. Considering these factors, we can predict the lack of volume and plan any necessary secondary procedures.

LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each submission to which Evidence-Based Medicine rankings are applicable. This excludes Review Articles, Book Reviews, and manuscripts that concern Basic Science, Animal Studies, Cadaver Studies, and Experimental Studies. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors .

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