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Journal Article
Review
The use of autogenous fat, fascia, and nonvascularized muscle grafts in the head and neck.
Otolaryngologic Clinics of North America 1994 Februrary
We have reviewed the transplantation of autogenous fat, fascia, and nonvascularized muscle. Although none of these tissues satisfies all of the requirements for an ideal transplantation material, understanding the indications and each material's limitations will broaden the surgeon's armamentarium when soft-tissue grafting is desired. Although the use of autogenous fat grafts in head and neck surgery has been associated with some unpredictability, fat remains an excellent choice for obliteration of frontal sinuses, for myringoplasty, and for limited soft-tissue augmentation. In most applications, significant resorption of the transplanted fat can be expected, and it should be compensated for accordingly by initial overcorrection. Future research endeavors, including development of preadipocyte transplants and hormonal manipulation of fat grafts, will perhaps improve results of transplantation. The grafting of fascia has been shown to be a very reliable technique, especially when tensile strength is required of the transplant material. In grafts, fascia is much more predictable than fat, in that the majority of the fascia survives as living tissue that retains its original characteristics. A relative lack of three-dimensional bulk, however, limits the use of fascia in soft-tissue augmentation. The transplantation of nonvascularized muscle, because of its enormous metabolic requirements, almost always results in death of the muscle cells and subsequent partial replacement by fibrous tissue. Free muscle grafts therefore have very limited application, except in circumstances in which fibrous tissue obliteration of small defects (such as the nasofrontal duct or eustachian tube) is the desired result. In clinical situations in which maintenance of the substance or bulk of the transplanted material is of paramount importance, consideration should be given instead to the transfer of vascularized tissue. For this purpose, numerous simple and composite flaps of fascia, fat, muscle, and other tissues are now available. Vascularized tissue transfers are certainly not the solution to every reconstructive problem, however. When properly selected and applied, the transplantation of fat, fascia, and occasionally muscle remains an important option for soft-tissue replacement in head and neck surgery.
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