Fusion following lateral mass reconstruction in the cervical spine.

OBJECT Recently, aggressive surgical techniques and a push toward en bloc resections of certain tumors have resulted in a need for creative spinal column reconstruction. Iatrogenic instability following these resections requires a thoughtful approach to adequately transfer load-bearing forces from the skull and upper cervical spine to the subaxial spine. METHODS The authors present a series of 7 cases in which lateral mass reconstruction with a cage or fibular strut graft was used to provide load-bearing support, including 1 case of bilateral cage placement. RESULTS The authors discuss the surgical nuances of en bloc resection of high cervical tumors and explain their technique for lateral mass cage placement. Additionally, they provide their rationale for the use of these constructs throughout the craniocervical junction and subaxial spine. CONCLUSIONS Lateral mass reconstruction provides a potential alternative or adjuvant method of restoring the load-bearing capabilities of the cervical spine.

[1]  J. Harms,et al.  C2 prosthesis: anterior upper cervical fixation device to reconstruct the second cervical vertebra , 2007, European Spine Journal.

[2]  V. Deviren,et al.  En bloc resection of primary tumors of the cervical spine: report of two cases and systematic review of the literature. , 2009, The spine journal : official journal of the North American Spine Society.

[3]  Justin K Scheer,et al.  Optimal reconstruction technique after C-2 corpectomy and spondylectomy: a biomechanical analysis. , 2010, Journal of neurosurgery. Spine.

[4]  T. Witham,et al.  Resection of a Retropharyngeal Craniovertebral Junction Chordoma Through a Posterior Cervical Approach , 2010, Journal of spinal disorders & techniques.

[5]  Z. Gokaslan,et al.  En bloc resection of multilevel cervical chordoma with C-2 involvement. Case report and description of operative technique. , 2005, Journal of neurosurgery. Spine.

[6]  M. Dekutoski,et al.  The Results of Vascularized-free Fibular Grafts in Complex Spinal Reconstruction , 2011, Journal of spinal disorders & techniques.

[7]  L. Rhines,et al.  Feasibility and Safety of En Bloc Resection for Primary Spine Tumors: A Systematic Review by the Spine Oncology Study Group , 2009, Spine.

[8]  F. Bongioanni,et al.  Aneurysmal Bone Cyst of the Atlas: Operative Removal through an Anterolateral Approach. A Case Report* , 1996, The Journal of bone and joint surgery. American volume.

[9]  Z. Gokaslan,et al.  Management of atlantoaxial metastases with posterior occipitocervical stabilization. , 2003, Journal of neurosurgery.

[10]  M. Yaszemski,et al.  Total En Bloc Spondylectomy of C5 Vertebra for Chordoma , 2007, Spine.

[11]  K. Tomita,et al.  Total en bloc spondylectomy for spinal tumors: improvement of the technique and its associated basic background , 2006, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

[12]  C. Fisher,et al.  En bloc marginal excision of a multilevel cervical chordoma. Case report. , 2006, Journal of neurosurgery. Spine.

[13]  B. George,et al.  Bone tumors at the cranio-cervical junction. Surgical management and results from a series of 41 cases , 2006, Acta Neurochirurgica.

[14]  C. Wolfla Anatomical, biomechanical, and practical considerations in posterior occipitocervical instrumentation. , 2006, The spine journal : official journal of the North American Spine Society.

[15]  K. Tomita,et al.  Total en bloc spondylectomy for spinal tumors: surgical techniques and related basic background. , 2009, The Orthopedic clinics of North America.

[16]  R. Melcher,et al.  A biomechanical analysis of C2 corpectomy constructs. , 2007, The spine journal.

[17]  G. Gallia,et al.  En Bloc Excisions of Chordomas in the Cervical Spine: Review of Five Consecutive Cases With More Than 4-Year Follow-up , 2011, Spine.

[18]  S. Shabat,et al.  En bloc resection of a C4 chordoma: surgical technique , 2007, European Spine Journal.

[19]  K. Tomita,et al.  Chordoma in the cervical spine managed with en bloc excision. , 1999, Spine.

[20]  T. Witham,et al.  The use of expandable cages in patients undergoing multilevel corpectomies for metastatic tumors in the cervical spine. , 2010, Orthopedics.

[21]  Tian Hui-zhon,et al.  Total en bloc spondylectomy——a new surgical technique for primary malignant vertebral tumors , 2006 .

[22]  D. Choi,et al.  Outcome of 132 Operations in 97 Patients With Chordomas of the Craniocervical Junction and Upper Cervical Spine , 2010, Neurosurgery.

[23]  J. Lesser,et al.  Surgical management of chordomas of the cervical spine. , 2007, Journal of neurosurgery. Spine.

[24]  R A Robinson,et al.  Primary neoplasms of the cervical spine. Diagnosis and treatment of twenty-three patients. , 1986, The Journal of bone and joint surgery. American volume.

[25]  K. Tomita,et al.  Total en bloc spondylectomy for primary malignant vertebral tumors. , 1998, La Chirurgia degli organi di movimento.

[26]  Z. Gokaslan,et al.  Transoral Approaches to the Cervical Spine , 2010, Neurosurgery.

[27]  J. Štulík,et al.  Total Spondylectomy of C2: Report of Three Cases and Review of the Literature , 2010, Journal of spinal disorders & techniques.

[28]  V. Deviren,et al.  Reconstruction of C-1 lateral mass with titanium mesh cage after resection of an aneurysmal bone cyst of the atlas. , 2009, Journal of neurosurgery. Spine.

[29]  Z. Gokaslan,et al.  Chordoma of the spinal column. , 2008, Neurosurgery clinics of North America.

[30]  P. Barša,et al.  Single-stage total C-2 intralesional spondylectomy for chordoma with three-column reconstruction. Technical note. , 2007, Journal of neurosurgery. Spine.

[31]  C. Mazel,et al.  Posterior Cervicothoracic Instrumentation in Spine Tumors , 2004, Spine.

[32]  J. Chung,et al.  Occipitocervical Reconstruction Through Direct Lateral and Posterior Approach for the Treatment of Primary Osteosarcoma in the Atlas: A Case Report , 2012, Spine.