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目的:研究面部不对称畸形患者下颌骨的放射性核素分布,帮助临床医师确定治疗时机和治疗方式。方法:29例面部对称者作为正常对照组。实验组为207例面部不对称畸形患者,测量29例面部对称和207例面部不对称畸形患者下颌骨不同部位的放射性计数,比较髁突、下颌支、下颌体99mTc-MDP摄入量百分比。采用SPSS13.0软件包对数据进行统计学处理。结果:成年和未成年患者的面部不对称畸形患者下颌骨99mTc-MDP摄入量有显著差异,男性和女性的下颌骨99mTc-MDP摄入量无显著差异。在下颌骨发育活性异常的患者中,99mTc-MDP摄取量差异值在髁突、下颌体、下颌支依次为(22.50±1.67)%、(6.93±1.02)%和(13.67±0.95)%。髁突的摄入量差异值最大。结论:下颌骨的生长发育与身体生长发育有所不同。放射性核素骨扫描可对下颌骨发育情况做出评价,为临床医师确定治疗时机与方式提供依据。
Objective: To study the distribution of radionuclide in the mandible of patients with facial asymmetric deformity and to help clinicians determine the timing of treatment and treatment. Methods: 29 cases of facial symmetry as a normal control group. The experimental group consisted of 207 patients with facial asymmetric deformity. Radiological counts of different parts of the mandible in 29 patients with facial symmetry and 207 patients with facial asymmetry were measured. The percentage of 99mTc-MDP intake in mandibular condyle, mandibular branch and mandible was compared. SPSS13.0 software package for statistical analysis of the data. Results: There was a significant difference in 99mTc-MDP intake of mandible between patients with facial asymmetry deformity and adult patients. There was no significant difference in 99mTc-MDP intake between male and female patients. In patients with abnormal mandibular developmental activities, the differences in 99mTc-MDP intake were (22.50 ± 1.67)%, (6.93 ± 1.02)% and (13.67 ± 0.95)%, respectively, in condyles, mandibles and mandibular branches. Condyle intake of the largest difference. Conclusion: The growth and development of the mandible is different from that of the body. Radionuclide bone scan can evaluate the development of the mandible and provide the basis for clinicians to determine the timing and manner of treatment.