Association between postoperative weight trajectory and 6-month volumetric outcome after autologous breast fat grafting
目标: Postoperative body-weight change may influence measured breast volume after autologous breast fat grafting. However, early weight change alone may not adequately reflect the longer postoperative course. We therefore investigated whether postoperative weight trajectory was more informative than early weight change alone for interpreting 6-month volumetric outcomes after autologous breast fat grafting
介绍: Postoperative body-weight change may influence measured breast volume after autologous breast fat grafting. However, early weight change alone may not adequately reflect the longer postoperative course. We therefore investigated whether postoperative weight trajectory was more informative than early weight change alone for interpreting 6-month volumetric outcomes after autologous breast fat grafting.
材料 / 方法: We retrospectively analyzed bilateral autologous breast fat grafting cases with serial body-weight data and postoperative volumetric assessment. Patients were classified by postoperative weight pattern relative to baseline, with attention to 1-month change and overall trajectory through 6 months. Six-month absolute volumetric gain and retention were compared between trajectory groups. Secondary analyses examined early weight change alone versus later outcomes, and adjusted models assessed the contribution of baseline breast volume and total injected volume.
结果: In the primary analysis, patients who maintained or recovered body weight by 6 months showed greater 6-month absolute volumetric gain than those remaining below baseline (median 207.7 vs 127.4 mL, p=0.036), with a parallel trend toward higher retention (0.533 vs 0.298, p=0.066). Early 1-month weight change alone showed only weak associations with 6-month outcomes. In adjusted analyses, preoperative breast volume and total injected volume remained relevant covariates, supporting that postoperative trajectory provides clinically useful context rather than acting as an isolated determinant.
总结: Postoperative weight trajectory may be more informative than early weight change alone for interpreting 6-month volumetric outcome after autologous breast fat grafting. Patients who maintained or recovered weight by 6 months tended to show larger measured volume and higher retention, suggesting that postoperative weight course should be considered when evaluating results and counseling patients.
