Risk and radiation exposure in orthopedic surgery of the spine in Mexico

OBJECTIVE: To find a biological effect by means of detection of the thyroid profile in research personnel, and a physical effect through radiation detection plates type Durr. METHODS: Five medical residents (four of first year and one of second) were submitted to the study of the basal thyroid profile, and annually after a year of radiation exposure. In two of them five plates of Durr type were placed by surgery at different body parts and 20 separate surgeries, using fluoroscopy, a total of 200 plates exposed. RESULTS: Three residents had decreased thyroid-stimulating hormone and two had a significant increase. Ninety-one plates were exposed, most of which corresponds to the neck (thyroid). CONCLUSION: Biological and physical changes were observed that require us to realize and implement protective measures against radiation, at least in the neck, because the thyroid is susceptible to radiation.研究目的：通过检测受试科研人员的甲状腺功能谱，探究其生物学效应；同时采用Durr型辐射探测板（Durr-type radiation detection plate）开展辐射检测，以明确相关物理效应。 研究方法：选取5名住院医师（其中4名为第一年住院医师、1名为第二年住院医师），对其进行基础甲状腺功能谱检测，并在其经历一年辐射暴露后每年开展复查。其中2名受试者于不同身体部位通过手术植入5块Durr型辐射探测板，借助透视引导完成20次独立手术操作，累计共有200块探测板接受辐射暴露。 研究结果：3名住院医师的促甲状腺激素（thyroid-stimulating hormone）水平降低，2名则出现显著升高。共计91块探测板检测到辐射暴露信号，其中绝大多数对应颈部（甲状腺所在区域）。 研究结论：本研究观察到了辐射相关的生物学与物理变化，提示我们需重视并落实针对颈部的辐射防护措施，因甲状腺对辐射具有较高易感性。