Reconstruction plates to bridge mandibular defects: a clinical and experimental investigation in biomechanical aspects

Reconstruction of large defects postmandibulectomy for oral cancer using plates and myocutaneous flaps: a long-term follow-up

“…In the present study, only 2 cases of lateral defects were reconstructed, with success in only 1 case. Major defects caused by subtotal mandibulectomies are the most usual setting for reconstruction failure 7,25,28 . BOYD et al 7 showed that combined mandibular defects, such as C defects combined with H or L defects, have the highest rate of failure (up to 87.5%).…”

“…In another study 7 using this classification a failure rate of 33.3% was found with reconstruction plates, reaching up to 60% for large combined defects (HC, L-C-L). YI et al 28 showed in their study that the main complications such as screw loosening appear more frequently in large mandibular reconstructions. In a recent animal study, LINDQVIST et al 19 comparing 4 screw-plate locking systems showed plate fracture in 3 of 4 types of reconstruction plate and screw fracture in 1 of 4 types.…”

Masticatory System Biomechanical Photoelastic Simulation fot the Comparision of the Conventional and Uni-Lock Systems in Mandibular Osteosynthesis

“…Perhaps the most influential studies are those of Champy et al, which, between 1970-1980, subjected photoelastic resin blocks to stress in order to draft the basic fundamentals of osteosynthesis [12,13,14]. At this point, several studies employing photoelasticity to evaluate osteosynthesis options for traumatology, orthodontics ad mandibular reconstruction after a hemimandibulectomy have been done [16,17,18].…”

Calculation of bone graft volume using 3D reconstruction system

“…3D composite cast models provide highly precise information about the anatomical structure to be treated and the graft site, whether this be as donor or receiver (15). The precision of biomodels has been described by such authors who showed that when fabricating splints and titanium prothesis on the basis of data taken either from patients or from biomodels, both sources achieved identical results and no significant differences were observed (16). Biomodels can be used to deal with complex biomaterial and graft structures which will be entirely compatible thanks to the models' capacity to reproduce structures precisely and, once sterilized, their capacity as a potent tool both for planning and surgery itself.…”