The present invention relates in general to implantable, resorbable copolymerscontaining L-lactide and glycolide repeat units, and in particular toterpolymerscontaining L-lactide, glycolide, and one other type of repeat unit selectedfrom the groupconsisting of D-lactide, D,L-lactide, and E-caprolactone. Medical devices forin vivoimplantation applications containing such implantable, resorbable copolymersare alsodescribed, as well as methods for making such copolymers and devices.