AIM: To report a procedure and results of a two-stage operation to manage intractable extensive orbital implant exposure with a large conjunctival defect which was difficult to treat with dermis fat grafts due to repe...AIM: To report a procedure and results of a two-stage operation to manage intractable extensive orbital implant exposure with a large conjunctival defect which was difficult to treat with dermis fat grafts due to repeated graft necrosis. METHODS: A retrospective chart review of four patients who had extensive orbital implant exposures with large conjunctival defects and had past histories of repeated autologous or preserved dermis graft failures was done. As a first-stage operation, the problematic pre-existing orbital implants were removed and autologous dermis fat grafts alone were performed on the defect area. Four months later, new orbital implants were secondarily inserted after confirmation of graft survival. The size of the conjunctival defects and state of the extraocular muscles were checked preoperatively. Success of the operations and complications were investigated.RESULTS: The mean size of the conjuctival defects was 17.3mm×16.0mm, and the mean time from the initial diagnosis of orbital implant exposure to implant removal and autologous dermis fat graft was 20.8 months. After implant removal and autologous dermis fat graft, no graft necrosis was observed in any patients. Also, implant exposure or fornix shortening was not observed in any patients after new orbital implant insertion. CONCLUSION: The secondary insertion of a new orbital implant after pre-existing implant removal and preceding dermis fat graft is thought to be an another selective management of intractable orbital implant exposure in which dermis fat grafts persistently fail.展开更多
Reconstructive surgery of the eyelid after tumor excision,trauma or other causes can be challenging,especially due to the complexities of the anatomic structures and to the necessity of both functional and aesthetic s...Reconstructive surgery of the eyelid after tumor excision,trauma or other causes can be challenging,especially due to the complexities of the anatomic structures and to the necessity of both functional and aesthetic successful outcomes.The aim of this minireview was to investigate the use of tissue transplantation in eyelid reconstruction.Surgical procedures are various,based on the use of both flaps,pedicled or free,and grafts,in order to guarantee adequate tissue reconstruction and blood supply,which are necessary for correct healing.Common techniques normally include the use of local tissues,combining non-vascularized grafts with a vascularized flap for the two lamellae repair,to attempt a reconstruction similar to the original anatomy.When defects are too wide,vast,deep,and complex or when no adjacent healthy tissues are available,distant area tissues need to be recruited as free flaps or grafts and paired with mucosal layer reconstruction.With regards to the anterior lamella,full thickness skin grafts are commonly preferred.With regards to the reconstruction of posterior lamella,there are different graft options,which include conjunctival or tarsoconjunctival,mucosal or palatal or cartilaginous grafts usually combined with local flaps.Free flap transplantation,normally reserved for rare select cases,include the use of the radial forearm and anterolateral flaps combined with mucosal grafts,which are surgical options currently reported in the literature.展开更多
文摘AIM: To report a procedure and results of a two-stage operation to manage intractable extensive orbital implant exposure with a large conjunctival defect which was difficult to treat with dermis fat grafts due to repeated graft necrosis. METHODS: A retrospective chart review of four patients who had extensive orbital implant exposures with large conjunctival defects and had past histories of repeated autologous or preserved dermis graft failures was done. As a first-stage operation, the problematic pre-existing orbital implants were removed and autologous dermis fat grafts alone were performed on the defect area. Four months later, new orbital implants were secondarily inserted after confirmation of graft survival. The size of the conjunctival defects and state of the extraocular muscles were checked preoperatively. Success of the operations and complications were investigated.RESULTS: The mean size of the conjuctival defects was 17.3mm×16.0mm, and the mean time from the initial diagnosis of orbital implant exposure to implant removal and autologous dermis fat graft was 20.8 months. After implant removal and autologous dermis fat graft, no graft necrosis was observed in any patients. Also, implant exposure or fornix shortening was not observed in any patients after new orbital implant insertion. CONCLUSION: The secondary insertion of a new orbital implant after pre-existing implant removal and preceding dermis fat graft is thought to be an another selective management of intractable orbital implant exposure in which dermis fat grafts persistently fail.
文摘Reconstructive surgery of the eyelid after tumor excision,trauma or other causes can be challenging,especially due to the complexities of the anatomic structures and to the necessity of both functional and aesthetic successful outcomes.The aim of this minireview was to investigate the use of tissue transplantation in eyelid reconstruction.Surgical procedures are various,based on the use of both flaps,pedicled or free,and grafts,in order to guarantee adequate tissue reconstruction and blood supply,which are necessary for correct healing.Common techniques normally include the use of local tissues,combining non-vascularized grafts with a vascularized flap for the two lamellae repair,to attempt a reconstruction similar to the original anatomy.When defects are too wide,vast,deep,and complex or when no adjacent healthy tissues are available,distant area tissues need to be recruited as free flaps or grafts and paired with mucosal layer reconstruction.With regards to the anterior lamella,full thickness skin grafts are commonly preferred.With regards to the reconstruction of posterior lamella,there are different graft options,which include conjunctival or tarsoconjunctival,mucosal or palatal or cartilaginous grafts usually combined with local flaps.Free flap transplantation,normally reserved for rare select cases,include the use of the radial forearm and anterolateral flaps combined with mucosal grafts,which are surgical options currently reported in the literature.
