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Table 4 Comparison of initial 10 patients and last 10 patients in intraoperative blood loss, operative time, and patient satisfaction

From: Single posterior approach for circumferential decompression and anterior reconstruction using cervical trabecular metal mesh cage in patients with metastatic spinal tumour

Case

Blood loss (ml)

Operative time (min)

Macnab criteria

Initial 10 cases

1575.0 ± 446.7a

300.5 ± 41.8a

Gb

Last 10 cases

1045.0 ± 217.9a

230.5 ± 47.6a

Gb

P value

0.007

0.005

0.654

  1. F female, M male, L lumbar spine, T thoracic spine, VBR vertebral body replacement
  2. amean ± standard deviation
  3. bmedian