ACDF at C2-C3 may be a feasible and safe way to treat unstable TSA.

In general, the effect size of intramedullary nailing may be comparable to that of plate fixation in the terms of nonunion, postoperative infections, radial nerve paralysis. The only slightly difference was identified in the event of delayed healing rate.

Both microdiscectomy and sequestrectomy had good curative results in the treatment of LDH. In low back pain VAS score, the former was better than the latter, while in the analgesic usage rate, the latter was superior to the former. In clinical practice, the choice of surgical method should be considered on the basis of actual situations.