摘要
用均匀设计的实验方法，以兔桡骨为研究对象，探讨间断纵压的施力四因素——强度、频率、持续时间及开始时间等对骨折愈合的影响作用。术中人工造成兔桡骨横行骨折，以术后２８天骨折处的Ｘ线片、组织学检查为准，评分后进行统计学处理。结果显示，骨折为Ⅱ期愈合。在选定范围内，施力强度为２５．５８Ｎ，频率取２．０Ｈｚ，每天施力５分钟时骨愈合达到最佳状态。施力开始时间在术后当天到２０天内对骨愈合的影响虽然不大，但有施力越早骨愈合越好的趋势。表明间断纵压对骨愈合有明显的促进作用。
The effect of four parameters (strength, frequency, lasting and starting time) of interrupted longitudinal compression on fracture healing was studied using an experimental method of uniform design and rabbit radius as the study subject. Transverse experimental fracture was made in rabbit radius and different parameters of interrupted longitudinal compression were exerted. Four weeks later, the callus formation was evaluated radiologically and histopathologically and the data were treated statistically. The results showed a secondary fracture healing and the optimum fracture healing obtained under the following conditions: strength of 25.58 N, frequency of 2.0 Hz, and lasting time of 5 minute per day. The effect of starting time (from the operation day to the 20th day postoperatively) was little, but there was a tendency that the sooner the compression is exerted, the better fracture healing is achieved. The significant stimulative effect of interrupted longitudinal compression on fracture healing may be attributed to the microkinetics and growth factor in the fractured fragments.
出处
《中医正骨》
1999年第1期3-5,共3页
The Journal of Traditional Chinese Orthopedics and Traumatology
基金
江西省科委重点资助
关键词
治疗
外固定
间断纵压
骨折愈合
interrupted longitudinal compression fracture healing
