Tracking the structural degradation and mechanical strength loss of bioresorbable polymers.
As poly-L-lactic acid (PLLA) degrades into benign lactic acid monomers, embedded passive resonant tags shift their natural frequency, indicating the exact percentage of mechanical load transfer to healing bone.
If bioabsorbable vascular scaffolds dissolve too rapidly before endothelial healing completes, arterial restenosis occurs. Telemetry wands verify structural integrity during outpatient visits.