Journal of Musculoskeletal Trauma

Original Articles

Comparison of Uniportal and Biportal Vertebroplasty in Bone Cement Distribution and Leakage: Jae Hyup Lee, Kang Sup Yoon, Seung Baik Kang, Hyunchul Jo, Sang Ki Lee, Bong Soon Chang, Choon Ki Lee, Ji Ho Lee; J Korean Fract Soc 2006;19(4):471-476. Published online October 31, 2006; DOI: https://doi.org/10.12671/jkfs.2006.19.4.471

Abstract: PURPOSE
To evaluate the differences of radiological outcomes of uniportal and biportal vertebroplasty in the point of bone cement distribution and leakage.
MATERIALS AND METHODS
A retrospective study reviewing the period between May 2002 and January 2006 investigated 100 vertebrae which underwent vertebroplasty and followed for more than three months by uniportal approach (55 vertebrae, group 1) and biportal approach (45 vertebrae, group 2). The operative time, the amount of bone cement injected, anterior vertebral height restoration, kyphotic angle, bone cement distribution, and bone cement leakage were evaluated.
RESULTS
The amount of injected bone cement of group 1 (3.9 cc) was statistically smaller than that of group 2 (5.1 cc) (p=0.016). There were no significant differences in the operative time, anterior vertebral height restoration, kyphotic angle in both groups. The rate of bone cement distribution over 8 zones was significantly higher in group 2 than in group 1 (p=0.014). However, the rate of bone cement distribution over 7 zones and the rate of bone cement distributed on whole anterior vertebral body were not significantly different in both groups. The cement leakage was not also significantly different in both groups.
CONCLUSION
Although the amount of injected bone cement was smaller in uniportal vertebroplasty, the radiological results and cement leakage were similar to biportal vertebroplasty. These findings suggest that uniportal vertebroplasty can be the operative options in osteoporotic vertebral fracture.

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Cemented Hemiarthroplasty in Femoral Neck Fractures over 70 Years : A Matched-Pair Analysis of unipolar and Bipolar Hemiarthroplasty: Kang Sup Yoon, Seung Baik Kang, Ji Ho Lee, Jin Soo Tark, Hyeok Rhyou; J Korean Soc Fract 1999;12(4):773-779. Published online October 31, 1999; DOI: https://doi.org/10.12671/jksf.1999.12.4.773

PURPOSE
: The goal of treatment in elderly patients with hip fractures is restoration of function We analysed the clinical efficacy of the cemented unipolar hemiarthroplasty and bipolar hemiarthroplalty for the treatment of femoral neck fractures in elderly patients over 70 years. Twenty-four pairs of patients who had a cemented hemiarthroplasty were studied with a retrospective and matched-pair analysis. Half of the patients had received a cemented bipolar hemiarthroplasty and the other half, a cemented unipolar hemiarthroplasty The patients were matched for age, sex, femoral head size, physical status and the ability to walk. At one year follow-up, the frequency of the pain and the limp were 41.7% and 54.2%, respectively, in the unipolar group and 45.8% and 45.8%, respertively, in the bipolar group. The ability to live independently was 66.7% in the unipolar group and 79.2% in the bipolar group. None of these differences were statistically significant. The frequency of the return to the level of function before injury was 37.5% in unipolar group and 45.8% in the bipolar group, which was also not significantly different. Flexion of the hip joint was 96.7+/-6.9 in unipolar group and 101.5+/-7.3 in the bipolar group(p=0.02). Abduction and rotational motion was not significantly different in two groups. There were no revisions in either group. Cemented bipolar hemiarthroplasty did not show better clinical results than cemented unipolar group.

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Bipolar Hemiarthroplasty for the Femoral Neck Fractures in Elderly Patients
Woong-Kyo Jeong, Sang-Won Park, Soon-Hyuck Lee, Jong-Hoon Park, Suk-Ha Lee, Ji-Hoon Kang, Gi-Won Choi, Won Noh
Journal of the Korean Fracture Society.2008; 21(1): 8. CrossRef

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