武警新兵集训期间胫骨骨膜厚度变化的高频超声观察

 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.

High-frequency ultrasonography observation of bilateral tibial periosteum in recruits of Chinese People's Armed Police Forces

Objective To study the change of the tibial periosteal thickness in recruits by high - frequency uhrasonography and to reveal the characteristics of tibial stress injury in recruits. Methods From December 2008 to March 2009, fifty recruits were included randomly in the study. The tibial stress injury was monitored by high -frequency uhrasonography weekly. Results High - frequency uhrasonography showed that the tibial periosteal thickness was during the plateau phase from the sixth week to ninth week , and the difference was statistically significant before training and after the second week （ P 〈 0.01 ）. The left tibial periosteal thickness surpassed that of the right from the fifth to ninth week, and was significantly different at the sixth week between right and left tibia （P 〈 0.05 ）. Among the twenty points,5 - 15 points were more distinct than the others （ P 〈 0. O1 ）. Conclusions High - frequency ultrasonography may be the best method in the early diagnosis of tibial stress injury in recruits. There are three phases of periosteal thickness during training： ascent, plateau and descent. The left tibia is possibily at higher risk than the right. The site of tibial stress injury is usually in the middle and the junction of the middle and distal third of the tibia.