Anterior Thoracic Diskectomy and Fusion: Surgical Technique and Anatomic Considerations.

Abstract

Ossification of the posterior longitudinal ligament (OPLL) is a rare condition that can lead to progressive spinal cord compression.¹ Currently, surgical decompression remains the optimal treatment in symptomatic patients.²^,³ In cases with significant thoracic stenosis and concern for ventral erosion of the dura, an anterior approach may be necessary for direct decompression.⁴ In Video 1, we demonstrate the successful application of a multidisciplinary approach for surgical resection of a large OPLL lesion located at the T2-3 disk space. A 37-year-old female with medical history significant for rickets presented a year after a fall with bilateral lower extremity paraparesis and saddle anesthesia. Exposure consisted of a manubrial window, followed by thoracic diskectomy and fusion with drilling of the calcified posterior longitudinal ligament. Major steps within this video include 1) a summary of the patient presentation and preoperative imaging, 2) exposure of thoracic vertebrae via a manubrial window approach, 3) thoracic diskectomy and fusion with take-down of calcified posterior longitudinal ligament, and 4) a review of the postoperative imaging. The patient tolerated the procedure well with immediate relief of symptoms and was subsequently discharged on postoperative day 1 with no complications. This operative video illustrates the technical steps and capabilities of an anterior approach, achieving near-complete gross total resection of an OPLL lesion using a multidisciplinary approach. The patient consented to this procedure.