title: Biomechanical properties of resorbable poly-L-lactide plates and screws: a comparison with traditional systems.
abstract: Poly-L-lactide (PLA) plates and screws were tested in vitro in porcine ribs for uniaxial pullout and four-point bending strength. Results were compared to conventional systems (stainless steel and titanium). The biomechanical testing suggests that PLA screws have properties suitable for fixation of sagittal split osteotomies. Poly-L-lactide plates have indications in areas of low stress and noncompressive load.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Sinai Hospital, Detroit, MI 48235-2899.
authors.forename: J M
authors.initials: JM
authors.lastname: Wittenberg
authors.forename: R H
authors.initials: RH
authors.lastname: Wittenberg
authors.forename: J A
authors.initials: JA
authors.lastname: Hipp
mesh_terms: D000818:Animals; D001672:Biocompatible Materials; D001673:Biodegradation, Environmental; D001696:Biomechanical Phenomena; D001860:Bone Plates; D001863:Bone Screws; D004867:Equipment Design; D005592:Fracture Fixation / Q000295:instrumentation*; D066298:In Vitro Techniques; D008422:Materials Testing; D008446:Maxillofacial Injuries / Q000601:surgery; D011091:Polyesters; D013193:Stainless Steel; D013552:Swine; D014025:Titanium
chemical_list: D001672:Biocompatible Materials; D011091:Polyesters; D013193:Stainless Steel; C033616:poly(lactide); D014025:Titanium