TY - JOUR
T1 - Accuracy and safety of thoracic pedicle screw placement in spinal deformities
AU - Smorgick, Yossi
AU - Millgram, Michael A.
AU - Anekstein, Yoram
AU - Floman, Yizhar
AU - Mirovsky, Yigal
PY - 2005/12
Y1 - 2005/12
N2 - OBJECTIVES: To determine the safety of pedicle screw fixation in thoracic spine deformity correction. METHODS: One hundred twelve pedicle screws were surgically placed in 25 patients with degenerative, posttraumatic, and Scheuermann kyphosis and idiopathic and neuromuscular scoliosis. Screw position was evaluated using intraoperative and postoperative radiographs and thin-slice computed tomography. RESULTS: Of the total 112 thoracic pedicle screws that were inserted, 98 screws (87.5%) were fully contained within the cortical boundaries of the pedicle. When comparing proximal screws (T1-T8) with distal screws (T9-T12) and convex placed screws with concave ones, a statistically significant difference in screw placement was evident (P < 0.05). More misplaced screws were seen proximally and on the concave side. Of the 14 malpositioned screws, 2 (1.8%) demonstrated aortic abutment. There were no neurologic deficits, vascular injuries, or mechanical failures recorded. CONCLUSIONS: Placement of thoracic pedicle screws is both feasible and safe.
AB - OBJECTIVES: To determine the safety of pedicle screw fixation in thoracic spine deformity correction. METHODS: One hundred twelve pedicle screws were surgically placed in 25 patients with degenerative, posttraumatic, and Scheuermann kyphosis and idiopathic and neuromuscular scoliosis. Screw position was evaluated using intraoperative and postoperative radiographs and thin-slice computed tomography. RESULTS: Of the total 112 thoracic pedicle screws that were inserted, 98 screws (87.5%) were fully contained within the cortical boundaries of the pedicle. When comparing proximal screws (T1-T8) with distal screws (T9-T12) and convex placed screws with concave ones, a statistically significant difference in screw placement was evident (P < 0.05). More misplaced screws were seen proximally and on the concave side. Of the 14 malpositioned screws, 2 (1.8%) demonstrated aortic abutment. There were no neurologic deficits, vascular injuries, or mechanical failures recorded. CONCLUSIONS: Placement of thoracic pedicle screws is both feasible and safe.
KW - Pedicular screws
KW - Spinal deformity
KW - Thoracic spine
UR - http://www.scopus.com/inward/record.url?scp=33644875119&partnerID=8YFLogxK
U2 - 10.1097/01.bsd.0000154448.90707.a8
DO - 10.1097/01.bsd.0000154448.90707.a8
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C2 - 16306843
AN - SCOPUS:33644875119
SN - 1536-0652
VL - 18
SP - 522
EP - 526
JO - Journal of Spinal Disorders and Techniques
JF - Journal of Spinal Disorders and Techniques
IS - 6
ER -