Two large scale comparative analysis on the outcomes in elderly with CSM.

Table 3: Two large scale comparative analysis on the outcomes in elderly with CSM.

Outcomes Madhavan, et al. [58] (N = 2868) Veeravagu, et al. [51] (N = 35,962)
Operative time	Similar operative times between elderly and nonelderly groups
		Blood loss	Elderly had less blood loss compared to nonelderly
JOA scores	Elderly had lower pre-op and post-op scores compared to nonelderly
		Recovery rates	Elderly had lower recovery rates
LOS in hospital	Elderly had longer LOS
Cervical Cobb angle	Elderly had smaller pre-post-op Cobb angles compared to nonelderly
		Spinal canal diameter	Elderly had greater post-op diameter
		Complication rates	No significant difference between Significantly higher elderly and nonelderly complication rates in the elderly compared to nonelderly following ACDF and posterior fusion
30-day readmission rates	Lower readmission rates in the elderly compared to nonelderly

CSM: Cervical spondylotic myelopathy; JOA: Japanese orthopaedic association; Pre-op: Pre-operative; Post-op: Post-operative; LOS: length of stay ; ACDF = Anterior cervical discectomy and fusion.