title: Minimally invasive thoracolumbar costotransversectomy and corpectomy via a dual-tube technique: evaluation in a cadaver model.
abstract: Minimally invasive surgery (MIS) is a promising new tool in the treatment of a variety of spinal disorders. MIS laminectomy techniques provide an effective means of achieving lumbar decompression. MIS corpectomy techniques have not been described. If feasible, such a technique would be optimal in the treatment of spinal metastatic disease, where traditional open techniques can result in a significant burden to a compromised patient. In this study, we explored the feasibility of a dual-tube minimally invasive thoracic corpectomy approach in a cadaver model. A minimally invasive thoracolumbar costotransversectomy and corpectomy were perfumed in eight adult cadavers. A dual-tube technique was used to perform a costotransversectomy followed by a corpectomy on one side, and through the opposite tube a transpedicular approach on the contralateral side. Pre- and postoperative CT scans of all cadavers were obtained to measure the cross-sectional area of the vertebral bodies in each specimen via a CT workstation. Reconstruction of the anterior column was attempted in some cadavers using polymethylmethacrylate (PMMA) cement. A successful costotransversectomy and corpectomy were completed in each cadaver. A percutaneous delivery system was successful in allowing an anterior column reconstruction using PMMA as a strut graft in selected cadavers. We demonstrated that a dual-tube MIS approach to thoracic corpectomy is technically feasible. Additionally, spinal stabilization can be achieved via percutaneous PMMA administration. This approach may provide a minimally invasive option in the treatment of select spinal metastases.
authors: Rush University Department of Neurosurgery, Chicago, Illinois, USA.
authors: Michael
authors: M
authors: Musacchio
authors: Nimesh
authors: N
authors: Patel
authors: Bradley
authors: B
authors: Bagan
authors: Harel
authors: H
authors: Deutsch
authors: Alexander R
authors: AR
authors: Vaccaro
authors: John
authors: J
authors: Ratliff
mesh_terms: D001843:Bone Cements / Q000627:therapeutic use*; D002102:Cadaver; D004750:Enteral Nutrition / Q000295:instrumentation*; D006801:Humans; D007267:Injections / Q000295:instrumentation* / Q000379:methods; D007796:Laminectomy / Q000295:instrumentation* / Q000379:methods; D019060:Minimally Invasive Surgical Procedures / Q000295:instrumentation* / Q000379:methods; D013904:Thoracic Vertebrae / Q000601:surgery*; D016896:Treatment Outcome; D054854:Vertebroplasty / Q000295:instrumentation* / Q000379:methods
chemical_list: D001843:Bone Cements