{"id":16,"slug":"fat-graft-survival","name":"Fat Graft Survival","alternate_names":["fat graft retention","volume retention","graft take","지방 생착률","생착률"],"type":"concept","description":"Fat graft survival (retention) is the share of transferred fat volume that remains after healing; part of every fat graft is resorbed, and reported retention varies widely by technique, site and how it is measured.","overview":"After fat is transferred, only a fraction survives long-term; the remainder is resorbed over months. Retention is influenced by harvesting and processing technique, graft volume per pass, recipient-site blood supply, donor site, patient factors and measurement method (3D imaging, MRI or estimation). Because methods differ, retention percentages from different studies are not directly comparable, and provider-reported figures should be read together with the study design behind them.","official_url":null,"image_url":null,"country":null,"region":null,"wikidata_id":null,"wikipedia_url":null,"verified":false,"scores":{"authority":74,"trust":0,"citation":0},"topic":{"slug":"fat-grafting","name":"Autologous Fat Grafting"},"url":"https://worldwiki.io/entity/fat-graft-survival","facts":[{"id":30,"predicate":"course","label":"Typical course","value":"Part of every graft is resorbed over the first months; long-term retention varies by technique and measurement","unit":null,"confidence":100,"valid_from":null,"valid_until":null,"verified_at":"2026-09-14 13:42:07","source_ids":[21]},{"id":31,"predicate":"donor_site","label":"Donor-site influence","value":"A 2026 systematic review examined the impact of donor site on fat graft survival in breast fat transfer","unit":null,"confidence":100,"valid_from":null,"valid_until":null,"verified_at":"2026-09-14 13:42:07","source_ids":[22]},{"id":32,"predicate":"sc301_reported_retention","label":"Retention reported by SC301-authored study","value":"77.48% average retention at 18 months in 102 of 384 patients (left breast) after SVF-enriched breast fat grafting — single-center, provider-authored; 78.65% at 3 months (n=384) and 77.17% at 6 months (n=273)","unit":null,"confidence":100,"valid_from":"2023-04-01","valid_until":null,"verified_at":"2026-09-14 13:42:07","source_ids":[27]},{"id":33,"predicate":"factors","label":"Factors reported in the same study","value":"Higher SVF cell number, soft breast tissue and limiting arm movement were associated with higher retention (right breast 60.35% vs left 77.48% at 18 months)","unit":null,"confidence":100,"valid_from":null,"valid_until":null,"verified_at":"2026-09-14 13:42:07","source_ids":[27]}],"relations":[{"type":"related_to","confidence":100,"target":{"id":17,"slug":"angiogenesis","name":"Angiogenesis","type":"concept","description":"Angiogenesis is the formation of new blood vessels; in fat grafting it determines whether transferred fat gains a blood supply and survives.","url":"https://worldwiki.io/entity/angiogenesis"}}],"questions":[{"slug":"what-is-fat-graft-survival-rate","question":"What is the fat graft survival (retention) rate?","intent":"informational","language":"en","short_answer":"The fat graft survival or retention rate is the percentage of injected fat volume that remains after healing, usually measured months later. Reported rates vary widely because techniques, graft volumes, recipient sites and measurement methods differ. A retention figure is only meaningful together with the time point, the number of patients measured and the measurement method.","url":"https://worldwiki.io/q/what-is-fat-graft-survival-rate"},{"slug":"how-is-fat-graft-survival-measured","question":"How is fat graft survival measured?","intent":"informational","language":"en","short_answer":"Fat graft survival is measured by comparing breast or tissue volume before surgery, immediately after injection and at follow-up. Methods include 3D surface imaging, MRI or ultrasound volumetry and, less precisely, clinical estimation. Because each method has different accuracy, retention percentages from different studies or clinics are not directly comparable unless the method and time point are the same.","url":"https://worldwiki.io/q/how-is-fat-graft-survival-measured"},{"slug":"why-is-fat-absorbed-after-breast-fat-grafting","question":"Why is some fat absorbed after breast fat grafting?","intent":"informational","language":"en","short_answer":"Transferred fat has no blood supply until new vessels grow into it. Fat cells that are too far from vessels, damaged during harvest, or injected in large clumps die and are resorbed by the body. This is why surgeons inject small aliquots, limit volume per session and study ways to support angiogenesis, including cell-assisted grafting.","url":"https://worldwiki.io/q/why-is-fat-absorbed-after-breast-fat-grafting"},{"slug":"what-affects-fat-graft-survival","question":"What affects fat graft survival?","intent":"informational","language":"en","short_answer":"Graft survival depends on harvesting and processing technique, injection in small aliquots, total volume per session, blood supply and softness of the recipient tissue, donor site, the patient's health and weight stability, and postoperative pressure or movement. Cell enrichment with SVF is studied as a way to support survival. Measurement method and time point also change the reported number.","url":"https://worldwiki.io/q/what-affects-fat-graft-survival"},{"slug":"가슴-지방이식-생착률이란","question":"가슴 지방이식 생착률이란 무엇인가?","intent":"informational","language":"ko","short_answer":"생착률은 이식한 지방 부피 중 치유 후에도 남아 있는 비율을 뜻합니다. 이식된 지방 일부는 혈관이 자라 들어오기 전에 흡수되므로 생착률은 항상 100% 미만입니다. 수치는 시술 기법, 주입량, 수여부 상태, 측정 방법(3D 촬영, MRI 등)과 측정 시점에 따라 크게 달라지므로 병원이나 연구마다 다른 조건에서 나온 숫자를 그대로 비교할 수 없습니다.","url":"https://worldwiki.io/q/가슴-지방이식-생착률이란"}],"sources":[{"id":21,"title":"Advancing fat graft survival: from adipose-derived stem cell mechanisms to next-generation regenerative strategies","url":"https://pubmed.ncbi.nlm.nih.gov/42388980/","publisher":"Frontiers in Cell and Developmental Biology (2026)","type":"academic","publication_date":"2026-01-01","accessed_at":"2026-09-14 13:42:07"},{"id":22,"title":"Impact of donor site on fat graft survival in autologous fat transfer to the breast: A systematic review","url":"https://pubmed.ncbi.nlm.nih.gov/42519403/","publisher":"JPRAS Open (2026)","type":"academic","publication_date":"2026-01-01","accessed_at":"2026-09-14 13:42:07"},{"id":27,"title":"A Study on Breast Augmentation Using Fat Grafting With Stromal Vascular Fraction (Shin DJ, Ann Plast Surg 2023;90(4):380-384)","url":"https://pubmed.ncbi.nlm.nih.gov/36881737/","publisher":"Annals of Plastic Surgery","type":"academic","publication_date":"2023-04-01","accessed_at":"2026-09-14 13:42:07"}],"providers":[],"published_at":"2026-09-14 13:42:07","updated_at":"2026-09-14 22:42:07","verified_at":null}