1Matola A,Vainiopaa S,vihtonen K,et al.Absoption biocompability andfixation properties of polyactic acid in ho tissue: an experimental studyin rats[].Clinical Orthopaedics.1991
2Axelson P,Makela A,Vainiopaa S,et al.Biodegradable implants in thefixation of physical fractrue in cats and dogs[].Acta Veterinaria Scandinavica.1998
3Rokkanen P,Botman O,Vainiopaa S.Biedegradable implants in fracture fixation: early results of treatment of the fracture of the ankle[].The Lancet.1985
4Partio EK,Botman O,Hirvensalo E.Self reinforced absorbable screwsin the fixation of displaced ankle fracture: a prospetive clinical study of152 patients[].Journal of Orthopaedic Trauma.1992