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KMID : 0388720080150010018
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Journal of Korean Society of Spine Surgery
2008 Volume.15 No. 1 p.18 ~ p.22
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The Usefulness of Bone Scan in the Osteoporotic Vertebral Compression Fracture Patients Treated With Kyphoplasty
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Jun Deuk-Soo
Shin Won-Ju
Kim Kwang-Hui
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Abstract
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Study Design: Retrospective study.
Objectives: To compare the clinical results of kyphoplasty between osteoporotic patients with compression fractures and rib hot uptake on bone scan and patients without rib hot uptake.
Summary of Literature Review: The incidence of osteoporotic rib fractures is 0.3% in postmenopausal women.
Materials and Methods: Between July 2005 and July 2006, 72 kyphoplasties for osteoporotic vertebral compression fractures were performed, and all patients had a bone scan study. On bone scan study, 41 patients (57.7%) had hot uptake in their ribs. Results were assessed by visual analog scale (VAS).
Results: The incidence of hot uptake was 67.8% in thoracic fractures, 40.0% in lumbar fractures, and 72.7% in thoracolumbar fractures. Hot uptake was significantly more common with thoracic and thoracolumbar fractures than with lumbar fractures (p<0.05). The incidence of hot uptake was 49.1% in one- and two-level fractures and 84.6% in over three-level fractures. This finding demonstrated significant difference between the two groups (p.0.05). The mean VAS scores for all cases were 8.2/3.4/3.2 at preoperative/immediate postoperative/after 3 months, respectively. In thoracic fractures, they were 8.2/3.9/3.1; lumbar fractures 8.0/3.2/3.1; and thoracolumbar fractures 8.3/3.7/3.0, respectively. The immediate postoperative VAS score in lumbar fractures was better than in thoracic fractures (p.0.05). The VAS scores in thoracic fractures with hot uptake were 8.3/4.1/3, and those without hot uptake were 7.8/2.8/3.0. The immediate VAS score in thoracic fractures without hot uptake was better than in those with hot uptake (p.0.05).
Conclusions: Thoracic and multiple osteoporotic compression fractures are often accompanied by rib fractures. Bone scan is a useful tool to detect rib fractures and predict the prognosis of kyphoplasty.
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KEYWORD
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Rib fracture, Compression fracture, Bone scan, Kyphoplasty
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