Journal of Musculoskeletal Trauma

Compatibility of Self-setting DBM-CP Composites in Percutaneous Kyphoplasty: Jung Hee Lee; J Korean Fract Soc 2007;20(3):266-271. Published online July 31, 2007; DOI: https://doi.org/10.12671/jkfs.2007.20.3.266

Abstract PDF: PURPOSE
To analyze the physical properties of demineralized bone matrix (DBM) and self-setting calcium phosphate cement (CPC) composite for its compatibility to percutaneous kyphoplasty.
MATERIALS AND METHODS
According to tap volume method, DBM was mixed with CPC in variable ratio 0%, 20%, 30%, 40% and 50%. Distilled water was used as a hardening fluid. Its properties, including injectability, mold applicability, setting time and its behavior, maximum temperature, and mechanical strength, were analyzed.
RESULTS
The DBM-CP composites has a good injectability and mold applicability, a maximum temperature of less than 5oC, a initial setting time of 3 to 10 minutes. The outer surface of DBM-CP composites showed their even distribution in optical microscopy. Injectability, mold applicability and compressive strength were in inverse proportion to the amounts of DBM.
CONCLUSION
This study suggests that the DBM-CP composites has a good injectability and mold applicability with a low setting temperature and even distribution of compound. Therefore this composite might be used as a substitute of PMMA in kyphoplasty.

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Factors Confluencing the Result of Percutaneous Balloon Kyphoplasty in Osteoporotic Thoracolumbar Compression Fracture: Jung Hee Lee, Dae Woo Hwang, Jae Heung Shin, Woo Sung Hong, Ju Wan Kim; J Korean Fract Soc 2007;20(1):76-82. Published online January 31, 2007; DOI: https://doi.org/10.12671/jkfs.2007.20.1.76

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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Cement Leakage into Disc after Kyphoplasty: Does It Increases the Risk of New Adjacent Vertebral Fractures?
Hoon-Sang Sohn, Seong-Kee Shin, Eun-Seok Seo, Kang-Seob Chang
Journal of the Korean Fracture Society.2011; 24(4): 361. CrossRef

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Evaluation of Rotational Displacement of the Posterior Facet on the Sagittal Plane in Computed Tomographic Images of Calcaneal Fractures: Su Young Bae, Yi Kyoung Shin, Jong Oh Kim, Jung Hee Lee, Churl Woo Lee, Jae Hung Shin; J Korean Fract Soc 2005;18(2):165-169. Published online April 30, 2005; DOI: https://doi.org/10.12671/jkfs.2005.18.2.165

Abstract PDF

PURPOSE
To find out whether or not the computed tomographic (CT) classification systems of the calcaneal fracture are efficient in illuminating displaced posterior facet fragment and the degree of displacement can be evaluated by analyzing serial CT images.
MATERIALS AND METHODS
Seventy-seven hundred calcaneal fractures were classified by CT classification systems including Sanders classification, and the sagittal rotation angle of the posteior facet fragment was measured on the plain lateral radiograph. Among the serial axial CT images, a number of images with the cortical bone embedded in the cancellous portion were recorded and any significant relationship between each data were evaluated.
RESULTS
The conventional CT classification systems are rather insufficient in illuminating the extent of sagittal rotatory displacement. However, the number of CT images in which the cortical radiodensity was observed showed a significantly related with the degree of displacement.
CONCLUSION
The conventional CT classification of the calcaneal fractures is unsatisfactory in expressing the degree of sagittal rotatory displacement of the posterior facet fragment; this problem may be alleviated by observing the number of axial CT images in which cortical radiodensity was revealed within the calcaneal body.

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Tricortical-allobone Grafting in Screw Fixation for Intra-articular Calcaneal Fracture via Ollier Approach
Taejung Bang, Su-Young Bae, Seung Hun Woo, Hyung-Jin Chung
Journal of Korean Foot and Ankle Society.2017; 21(1): 27. CrossRef
The Effect of Temporary K-wire Fixation in the Plate Fixation for Displaced Intra-articular Calcaneal Fracture
Kiwon Young, Jin Su Kim, Jinseon Moon
Journal of Korean Foot and Ankle Society.2014; 18(3): 119. CrossRef

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