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Journal of Korean Neurosurgical Society 2006;40(6): 412-418.
Titanium Mesh Cage for Anterior Stabilization in Tuberculous Spondylitis : Is It Safe?.
Koang Hum Bak, Jin Hwan Cheong, Jae Min Kim, Choong Hyun Kim, Seung Bum Kim
1Department of Neurosurgery, School of Medicine, Hanyang University, Seoul, Korea. pkh2325@hanyang.ac.kr
2Department of Neurosurgery, School of Medicine, Kyung Hee University, Seoul, Korea.
The safety of titanium metal cages in tuberculous spondylitis has not been investigated. We evaluated the outcome and complications of titanium mesh cages for reconstruction after thoracolumbar vertebrectomy in the tuberculous spondylitis.
There were 17 patients with 18 operations on the tuberculous spondylitis in this study. Sixteen patients were operated with anterior corpectomy and reconstruction with titanium mesh cage followed by posterior transpedicular screw fixations on same day, two pateints were operated by either anterior or posterior approach only. After the affected vertebral body resection and pus drainage from the psoas muscle, titanium mesh cage, filled with morselized autogenous bone, was inserted. All the patients had antituberculosis medication for 18 months. The degree of kyphosis correction and the subsidence of cage were measured in the 15 patients available at a minimum of 2 years. Outcome was assessed with various cross-sectional outcome measures. Recurrent infection was identified by serial ESR(Erythrocyte Sedimentation Rate) and CRP(Cross Reactive Protein) .
There was no complication from the use of a titanium mesh cage. Recurrent infection was not detected in any case. Average preoperative of 9.2degrees was reduced to -2degrees at immediate postoperative period, and on final follow up period kyphotic angle was measured to be 4.5degrees. Postoperatively, subsidence was detected in most patients especially at ambulation period, however further subsidence was prevented by the titanium mesh cage. Osseous union was identified in all cases at the final follow-up.
The cylindrical mesh cage is a successful instrument in restoring and maintaining sagittal plane alignment without infection recurrence after vertebrectomy for tuberculous spondylitis.
Key Words: Spondylitis; Tuberculosis; Surgical mesh; Vertebrectomy; Reconstruction
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