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Autologous fat grafting28711IntroductionCalcifications and reankylosis are potential complications after alloplastic temporomandibular joint (TMJ) replacement. This process can occur through the formation of a hematoma after joint debridement, in which cells can differentiate to osteoblasts, which can deposit bone.(1) By wrapping the joint space with autologous fat grafts (AFGs), the dead space can be filled out, preventing the formation of a hematoma and as such has been advocated to counteract the occurrence of calcifications.(Fig. 1) The aim of this narrative review was to find evidence for this rationale.Fig. 1: Abdominal fat transplant surrounding the condylar head and neck (yellow arrows). A transparotid Biglioli approach (green arrow) was chosen for fixing the mandibular part and a retroauricular approach (blue arrow) for fixing the fossa partMaterials and MethodsA computerized literature search was performed up to April 2018, following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. The following databases were used Nikolas de Meurechy NW.indd 287 05-06-2024 10:15