Table 1.
Lattissimus Dorsi Summary of Lattissimus Dorsi Muscle Measurements and Force Generation In Vitro
| Group | Native | NR | R-TE-MR | NR | R-TE-MR | R-S |
|---|---|---|---|---|---|---|
| Time point | 1 month | 2 months | ||||
| Sample size | 20 | 7 | 6 | 5 | 4 | 5 |
| Muscle length (mm) | 36.4±0.9 | 31.0±1.7 | 33.7±1.7 | 36.2±2.2 | 35.4±1.4 | 35.4±1.8 |
| Wet weight (mg) | 80.6±4.9 | 65.7±11.5 | 184.7±27.9a | 74.1±2.9 | 88.8±2.9 | 120.8±14.2b |
| PCSA (mm2) | 2.33±0.11 | 2.27±0.39 | 5.86±0.88a | 2.21±0.20 | 2.67±0.13 | 3.62±0.40b |
| Specific force (mN/mm2) | 150.8±4.8a | 47.3±6.2 | 33.6±8.6 | 69.5±10.4 | 99.2±17.7a | 45.2±3.8 |
Values are expressed as the arithmetic mean±standard error of the mean. p<0.05 was considered significant in all cases.
a
Significant difference from corresponding values for all other groups.
b
Significant difference from corresponding values for all groups except R-TE-MR at 2 month.
PCSA, physiological cross-sectional area; TE-MR, tissue-engineered muscle repair; NR, no repair.