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Journal of Korean Neurosurgical Society 2011;50(6): 523-527.
doi: https://doi.org/10.3340/jkns.2011.50.6.523
Computer-Assisted Modified Mid-Sacrectomy for En Bloc Resection of Chordoma and Preservation of Bladder Function.
In Ho Han, Young Jun Seo, Won Ho Cho, Byung Kwan Choi
1Department of Neurosurgery, Medical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea. spine@pusan.ac.kr
2Department of Neurosurgery, Dongnam Institute of Radiological & Medical Sciences, Busan, Korea.
ABSTRACT
A 67-year-old woman presented for evaluation of severe coccygeal pain. The computed tomography scans and magnetic resonance imaging showed an asymmetric midline sacral tumor invading the right lower portion of S2. To preserve both S2 nerve roots and to obtain negative surgical margins, a modified mid-sacrectomy with an aid of a computed navigation system was performed. The sacral tumor was excised en bloc with negative tumor margins. Both S2 nerve roots were preserved and additional reconstruction was not necessary because of minimal resection of the sacroiliac joint. We report a case of a sacral chordoma which was excised en bloc with adequate surgical margins by a computer-assisted modified mid-sacrectomy. The computed navigation system may be a useful tool for tumor targeting and safe osteotomies in sacral tumor surgery via the posterior only approach.
Key Words: Sacral chordoma; Sacrectomy; En bloc resection; Computed navigation system
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