Is anterior cervical discectomy with fusion considered a major surgery?

It is small tissue: Small in the tissue operated on but the complication easy recovery possible are significant when it goes well it is minor surgery but best describe all surgeries around your spinal cord as major.

If it is you!: It depends on one's perspective and really on how healthy you are and how severe the disc herniation is and if any other associated pathology or if there was any other prior surgery or treatment(radiation) through the surgical approach that may complicate the surgery or if you are a smoker, obese, diabetic, have an existing chronic remote infection, renal disease etc.

Absolutely: It is a common surgery for spine surgeons and most patients do well. However, it is certainly considered major surgery. Check out spine-health.Com.