Late complication of surgically treated atlantoaxial instability: occipital bone erosion induced by protruded fixed titanium rod: a case report.

Objective: Polyaxial screw-rod fixation of C1-C2 is a relatively new technique to treat atlantoaxial instability, and there have been few reports in the literature outlining all possible complications. The purpose of this case report is to present the occurrence and management of occipital bone erosion induced by the protruded rostral part of a posterior atlantoaxial screw-rod construct causing headache.

Clinical Features: A 70-year-old Asian man with rheumatoid arthritis initially presented to our institution with atlantoaxial instability causing progressive quadraparesis and neck pain.

Radical excision combined with instrumented fixation in the management of thoracic epidural angiolipoma: a case report.

Introduction: Spinal angiolipoma is a benign uncommon neoplasm composed of mature lipocytes admixed with abnormal blood vessels. They account for only 0.04% to 1.

Traumatic subarachnoid hemorrhage associated with acupuncture.

Subarachnoid hemorrhage as a complication of acupuncture has been reported in only a few cases. We report another case and discuss the implications of subarachnoid hemorrhage following acupuncture. Although acupuncture has traditionally been thought to be relatively safe, physicians should be aware that it may be a cause of intracranial hemorrhage.