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Table 3 Comparison of blood loss and operation time between studies

From: Laminoplasty instead of laminectomy as a decompression method in posterior instrumented fusion for degenerative cervical kyphosis with stenosis

Items Mean age Diagnosis ACF PIF + PD One stage of ACF and PIF + PD
Present study 67.6 y/o Degenerative cervical kyphosis with stenosis ABL: 135.2 ± 85.2 ml ABL: 307.7 ± 92.3 ml ABL: 442.9 ± 236.0 ml
MST: 136.8 ± 52.3 min MST: 139.3 ± 50.4 min MST: 314.5 ± 51.2 min
Du et al. [2] 59.6 y/o CSM/OPLL/cervical stenosis None ABL: 650 mL MST: 150 min None
Epstein et al. [20] 54.0 y/o OPLL None None ABL: 500 ml
MST: 522 min
  1. CSM cervical spondylotic myelopathy, OPLL ossification of the posterior longitudinal ligament, ABL average blood loss, MST mean surgical time, ACF anterior cervical fusion, PIF + PD posterior instrumented fusion with decompression