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Table 1 Handling characteristics at different test conditions

From: Effect of storage temperature and equilibration time on polymethyl methacrylate (PMMA) bone cement polymerization in joint replacement surgery

 

20 °C (control)

24 °C

28 °C

Equilibration time (min)

15

30

45

15

30

45

60

15

30

45

60

Mean doughing time (s)

148 ± 7

97 ± 4

125 ± 6

152 ± 5

150 ± 4

90 ± 5

105 ± 8

157 ± 6

155 ± 6

Mean setting time (s)

534 ± 17

414 ± 6

446 ± 11

501 ± 12

528 ± 15

381 ± 8

432 ± 30

487 ± 9

520 ± 16

Mean working time (s)

386 ± 21

317 ± 6

321 ± 12

349 ± 13

374 ± 17

291 ± 9

326 ± 31

330 ± 13

355 ± 19

  1. Table showing the handling characteristics (doughing, working, and setting times) of the bone cement stored at 24 and 28 °C at various equilibration times. Note that even though the mean setting time of the cement stored at 24 and 28 °C required 60 min of equilibration time to approximate the setting time of the control, only 45 min was required for the doughing time to equilibrate
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X