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KMID : 0386420070200010076
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Journal of the Korean Fracture Society
2007 Volume.20 No. 1 p.76 ~ p.82
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Factors Confluencing the Result of Percutaneous Balloon Kyphoplasty in Osteoporotic Thoracolumbar Compression Fracture
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Lee Jung-Hee
Hwang Dae-Woo
Shin Jae-Heung
Hong Woo-Sung
Kim Ju-Wan
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Abstract
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Purpose: We are to find the method to objectify postoperative prognosis, analyzing the factors confluencing the result of kyphoplasty in osteoporotic vertebral compression fracture (OVCF).
Materials and Methods: Our study included 50 patients (55 vertebral bodies) who have undergone kyphoplasty from Sep. 2004 until Oct. 2005. We divided in the group according to bone mineral density (BMD), compression rate, recovery rate and cement leakage. We verified the significance of each group, using independent t-test, and ANOVA test among observers.
Results: We performed kyphoplasty on 55 vertebral bodies, 12 cases with more than 0.4 g/cm2 in BMD (mean: 0.53 g/cm2) and their mean preoperative compression rate (CR), immediate postoperative recovery rate (RR-IPO), and recovery rate after 6 months (RR-6M) was each 30.58%, 12.35%P, 9.93%P. 15 cases under 0.4 g/cm2 (mean 0.31 g/cm2), and their CR, RR-IPO and RR-6M was 26.73%, 11.77%P, 5.26%P respectively. The p-value was 0.004. Another studies according to CR, RR-IPO and leakage of cement revealed the better results in the cases of the lower CR, the smaller reduction and abscecnce of cement leakage, but statistically insignificant (p=0.309, 0.069, 0.356).
Conclusion: Preoperative BMD was most important factor that confluencing postoperative radiological result in OVCF. Other factors were also thought to be confluencing factors, but statistically insignificant.
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KEYWORD
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Osteoporosis, Thoracolumbar compression fracture, Kyphoplasty, Recovery rate
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