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目的应用高频超声监测武警部队新兵集训期间胫骨骨膜厚度的变化,了解应力性骨损伤在武警部队新兵中的流行病学特点。方法随机抽取武警某部男性新兵50名作为调研对象,双侧胫骨前内侧各设定20个测量点,分别于开训前及集训期间各周,应用高频超声仪器逐一测量骨膜厚度。结果开训后1～5周,胫骨骨膜呈现逐渐增厚趋势,第6～9周骨膜厚度维持在一个高平台期,10～12周有所下降并趋于稳定,与开训前相比,集训第2周起骨膜增厚差异有统计学意义(P<0.01);开训前及集训第1～4周,右侧胫骨骨膜厚度大于左侧,第5～9周左侧大于右侧,第10～12周时恢复至右侧大于左侧,其中集训第6周双侧胫骨骨膜厚度差异有统计学意义(P<0.05);与开训前比较,集训中、后期第5～15测量点的骨膜厚度差异均有统计学意义(P<0.01)。结论高频超声可作为新兵集训阶段下肢应力性骨损伤的首选诊断方法。武警新兵集训期间胫骨骨膜厚度变化分为上升期、高平台期及稳定期;左下肢发生应力性骨损伤的风险可能高于右侧;胫骨中段、中下1/3段为应力性骨损伤的高发部位。
Objective To monitor the changes of periosteal thickness of tibia during the training of new recruits in Armed Police Forces by using high frequency ultrasound to understand the epidemiological characteristics of stress bone injury in recruits of Armed Police Forces. Methods Fifty male recruits in a certain armed police were randomly selected as research objects. 20 measurement points were set on the anteromedial side of bilateral tibia. Periosteum thickness was measured one by one with high-frequency ultrasound instrument before training and during training week. Results The thickness of tibial periosteum tended to increase gradually from 1 week to 5 weeks after operation. The periosteal thickness remained at a high plateau from the 6th to the 9th week. The periosteal thickness decreased and tended to be stable from 10 to 12 weeks. The periosteal thickening of the right tibia was greater than that of the left, the left 5 to 9 weeks was greater than the right, From the 10th to the 12th week, the thickness of the bilateral tibial periosteum was recovered to the right side than the left side at the 6th week (P <0.05). Compared with the preoperative training, the 5th to 15th The difference of periosteum thickness was statistically significant (P <0.01). Conclusions High-frequency ultrasound can be used as the first choice for the diagnosis of lower extremity stress bone injury during recruits training. The changes of tibial periosteal thickness during recruits training were divided into ascending phase, high plateau phase and stable phase. The risk of stress bone injury in the left lower extremity may be higher than that of the right one. In the middle and lower tibia, High-fat parts.