1 Introduction Polylactic acid (PLA) is widely utilized biopolymer in the medical, packaging, and engineering sectors due to its biodegradability, cost-effectiveness, and mechanical properties [1-4]. In biomedical applications, bulk PLA's Young's modulus of 2–3 GPa, close to that of cancellous bone, together with its high biocompatibility, makes PLA a promising candidate for temporary orthopedic devices with reduced risk of stress shielding.