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Table 4 Recommendations

From: Surgical decision-making for ossification of the posterior longitudinal ligament versus other types of degenerative cervical myelopathy: anterior versus posterior approaches

  Pathology specific indications
Anterior approach DCM:
• Pre-existing cervical kyphosis
OPLL:
• K-line (−) patients regardless of canal-occupying ratio
• K-line (+) and canal-occupying ratio > 60%
Posterior approach DCM:
• Severe osteoporosis, renal failure, smokers
• Multi-level pathology
OPLL:
• K-line (+) and canal-occupying ratio < 50–60%
• Multi-level pathology
  1. DCM Degenerative cervical myelopathy, OPLL Ossification of the posterior longitudinal ligament