Table 4.
The hidden and visible blood loss of PFNA-II and DHS in the treatment of inter-trochanter fracture (x ± s)
| Number | Operation time (min) | Intraoperation bleed (ml) | Postoperation drainage (ml) | Hidden blood loss (ml) | Visible blood loss (ml) | Total blood loss (ml) | |
|---|---|---|---|---|---|---|---|
| PFNA-IIa | |||||||
| Male | 81 | 34.1 ± 1.2 | 33.0 ± 1.8 | 53.6 ± 2.1 | 272.9 ± 6.9 | 86.6 ± 2.6 | 359.5 ± 7.0 |
| Female | 105 | 36.5 ± 0.3* | 36.0 ± 2.2* | 55.6 ± 2.4* | 280.5 ± 6.3* | 91.6 ± 3.5* | 372.1 ± 7.3* |
| Total | 186 | 35.5 ± 1.4 | 34.7 ± 2.5 | 54.7 ± 2.5 | 277.2 ± 7.6 | 89.4 ± 4.0 | 366.6 ± 9.5 |
| DHSb | |||||||
| Male | 80 | 49.9 ± 0.6 | 100.0 ± 4.3 | 77.6 ± 3.9 | 133.0 ± 7.0 | 177.6 ± 5.6 | 310.5 ± 9.2 |
| Female | 97 | 52.1 ± 1.1* | 103.7 ± 8.3* | 79.7 ± 5.1* | 144.6 ± 8.1* | 183.5 ± 10.3* | 328.1 ± 14.2* |
| Total | 177 | 51.1 ± 1.4# | 102.0 ± 7.0 # | 78.8 ± 4.7# | 139.3 ± 9.6# | 180.8 ± 9.0# | 320.1 ± 15.0# |
PFNA-II Asia proximal femoral nail anti-rotation; DHS Dynamic hip screw. *p < 0.01, the male patients vs. the female patients in the same group; # p < 0.01 total patients in Group PFNA-II vs. total patients in Group DHS. Visible blood loss = Intra operation bleed + Post operation drainage. aSmith & Nephew, Memphis, Tennessee; bSynthes, West Chester, PA, USA