Table 2 Comparison between postoperative drainage volume (ml) with BMD site and bone status

Lumbar spine

(n = 56)

245.0 (172.5, 330.0)

(n = 57)

270.0 (190.0, 350.0)

0.836

Trochanter

(n = 58)

282.5 (217.5, 410.0)

(n = 61)

240.0 (160.0, 320.0)

0.013

Femoral neck

(n = 22)

260.0 (217.5, 376.3)

(n = 97)

270.0 (175.0, 340.0)

0.549

Total hip

(n = 69)

285.0 (215.0, 410.0)

(n = 50)

230.0 (150.0, 305.0)

0.003