Protection of the Sinus Membrane when Performing Sinus Lift Surgery using Heterologous Bone Block or Cortical Lamina Grafts

Sinus lift and concomitant placement of three osseointegrated implants in a 66-year-old patient

Rehabilitation of the atrophic posterior maxilla often requires the performance of a sinus lift, which, in cases where atrophy is significant and also associated with multiple adjacent elements, is preferably managed through the lateral approach if full control of the surgical act is also desired. The operations of sinus membrane debridement, particulate biomaterial grafting, and implant placement, if this is performed concomitantly, are associated with the risk of membrane perforation, one of the most frequent and feared complications in this type of surgery. The placement below the sinus membrane of membranes or bone grafts in the form of thin blocks or laminae can help in the prevention of possible perforations following unplugging and – in cases where these have occurred – in their management. They also help to form a neo-chest that will allow greater preservation of the graft itself over the years. The case presented in this article illustrates the placement of a spongy bone block to protect the sinus membrane after its disconnection and before the simultaneous placement of osseointegrated implants.

PRODUCTS USED: Osteoxenon granules and block, Biocollagen membrane, Osteoxenon Flex Cortical Sheet OSP-OX03