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The Usefulness of Bone Scan in the Osteoporotic Vertebral Compression Fracture Patients Treated With Kyphoplasty

  • Journal of Korean Society of Spine Surgery
  • Abbr : J Kor Spine Sur
  • 2008, 15(1), pp.18-22
  • Publisher : Korean Society Of Spine Surgery
  • Research Area : Medicine and Pharmacy > Orthopedic Surgery

Jun Deuk Soo 1,  신원주 2,  김광희 2

1가천의과학대학교
2가천의과대학교

Candidate

ABSTRACT

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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