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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: Anesth Analg. 2013 Mar 4;116(4):794–803. doi: 10.1213/ANE.0b013e31828174a7

Table 1.

Characteristics of poly-lactic-co-glycolic acid (PLGA)-based microspheres

Microsphere drug content (w/w)a n Diameter (µm) b Drug content (%) b, c
Lidocaine 10% 4 47.5 ± 13.9 10.0 ± 2.4
Bupivacaine 10% 4 49.2 ± 14.4 13.4 ± 2.1
Lidocaine 50% 4 65.2 ± 20.7 54.0 ± 3.0
Bupivacaine 50% 5 57.8 ± 16.3 51.7 ± 3.7
a

Theoretical

b

Values are means ± standard deviations

c

Measured