Tailored Posterior-only Approach for C2 vertebral body lesions: Our Surgical Experience in 10 Patients.

C2 vertebral body (axis) lesions are often approached anteriorly combined with posterior stabilization of craniovertebral junction (CVJ). The anterior approach has its limitations. A posterolateral corridor is an alternative access to the C2 body lesions, and this alone may suffice in selected cases. We describe our experience with C2 body lesions, dealt primarily through posterior approach, and propose an algorithm in the management of such cases.Ten patients with axis lesions were operated through a midline posterior approach followed by posterior stabilization of CVJ in the same sitting. Their preoperative and follow-up clinico-radiological details were reviewed.The lesions included aneurysmal bone cysts (2 cases), fibrous dysplasia (2), chordoma (2), Ewing sarcoma (1), metastases (1) and one case each of post traumatic malunion and post inflammatory deformity. All the patients presented with worsening neck pain. Five also had spastic quadriparesis. There were no perioperative complications. All showed clinical improvement at the follow-up. Only two patients (chordoma-1 and aneurysmal bone cyst -1) required an additional anterior procedure.Adequate debulking or total excision of lesion, neural decompression and stabilization of CVJ for axis body lesions can be achieved through a single midline posterior approach in majority of cases. If required, an anterior approach may be later added depending upon the final histopathology.