TY  - JOUR
PY  - 2015//
TI  - Experimental study of high-energy fractures delayed operation in promote bone healing
JO  - International journal of clinical and experimental medicine
A1  - Pan, Zhi-Jun
A1  - Li, Zhong
A1  - Li, Jing
SP  - 10619
EP  - 10625
VL  - 8
IS  - 7
N2  - To investigate role of delayed operation to stimulate growth of strong external callus in high-energy fractures, and explore a new way for bone healing. Twenty adult dogs were employed, and randomly divided into four groups, including group A-D. The dogs underwent osteotomy by wire saw in middle of femur, electric coagulation damaged surrounding periosteum, forming a 1 cm defect. Group A were internal fixed 14 days after osteotomy (higher-energy fractures delayed operation), Group B and C were internal fixed immediately (no delayed operation), Group D were internal fixed 14 days after osteotomy (delayed operation, but resected granulations around extremities). The results showed that groups of early fixed have no external callus growth and almost no growth in internal callus, these conditions leads to atrophy nonunion. On contrary, the porosis was strong and callus union was steady in group A and D, which have a delayed operation. In conclusion, early surgical fixation of high-energy fracture restrains external callus growth, easily lead to poor callus healing phenomenon of low-quality. Delayed surgical fixation can begin to repair soft tissues injury, stimulate external callus growth and improve fracture healing, so a small incision open reduction produce more robust growth effect than closed reduction.<p />  <p>Language: en</p>
LA  - en
SN  - 1940-5901
UR  - http://dx.doi.org/
ID  - ref1
ER  -