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KMID : 1189320120060040257
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Asian Spine Journal
2012 Volume.6 No. 4 p.257 ~ p.265
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Complications of Posterior Vertebral Resection for Spinal Deformity
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Kim Sung-Soo
Cho Beom-Cheol
Kim Jin-Hyok
Lim Dong-Ju
Park Ji-Yong
Lee Beom-Jung
Suk Se-Il
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Abstract
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Study Design: Retrospective study.
Purpose: To evaluate the incidence and risk factors of complications following posterior vertebral resection (PVR) for spinal deformity.
Methods: A review of 233 patients treated with PVR at one institution over a nine-year period (1997 to 2005) was performed. The average age was 33.5 years. Complications were assessed in terms of surgical techniques (posterior vertebral column resection [PVCR] and decancellation osteotomy) and etiologies of deformity.
Results: Local kyphosis was corrected from 51.4° to 2.7°, thoracic scoliosis 63.9° to 24.5° (62.6% correction), and thoracolumbar or lumbar scoliosis 50.1° to 17.1° (67.6%). The overall incidence of complications was 40.3%. There was no significant difference between PVCR and decancellation osteotomy in the incidence of complications. There were more complications in the older patients (>35 years) than the younger (p < 0.05). Hig her than 3,000 ml of blood loss and 200 minutes of operation time increased the incidence of complications, with significant difference (p < 0.05). More than 5 levels of fusion significantly increased the total number of complications and postoperative neurologic deficit (p < 0.05). Most of the postoperative paraplegia cases had preoperative neurologic deficit. Preoperative kyphosis, especially in tuberculous sequela, had hig her incidences of complications and postoperative neurologic deficit (p < 0.05). More than 40° of kyphosis correction had the tendency to increase complications and postoperative neurologic deficit without statistical significance (p > 0.05). There was 1 mortality case by heart failure. Revision surgery was performed in 15 patients for metal failure or progressing curve.
Conclusions: The overall incidence of complications of PVR was 40.3%. Older age, abundant blood loss, preoperative kyphosis, and long fusion were risk factors for complications.
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KEYWORD
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Posterior vertebral resection, Posterior vertebral column resection, Decancellation osteotomy, Postoperative complications
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