Biomechanical properties of resorbable poly-L-lactide plates and screws: a comparison with traditional systems.
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.
Wittenberg
J M
JM
Department of Oral and Maxillofacial Surgery, Sinai Hospital, Detroit, MI 48235-2899.
Wittenberg
R H
RH
Hipp
J A
JA
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
D001672:Biocompatible Materials; D011091:Polyesters; D013193:Stainless Steel; C033616:poly(lactide); D014025:Titanium