Abstract:

BACKGROUND: Some people believe that Cerclage band can influence the blood supply at fracture site leading to delayed healing and nonunion of fractures.
OBJECTIVE: To observe the effects of Cerclage band with three different bound stresses on the callus formation and fracture healing in fracture animal models.
METHODS: Femoral shaft fracture animal models of non-weight-bearing were established and divided into three groups. The cerclage band with three different bound stresses (200, 150, 100 N) was added at the fracture site, separately. Callus formation and fracture healing were observed at 2, 4, 6 weeks postoperatively.
RESULTS AND CONCLUSION: In the 200 N group, the callus formation at the fracture site was limited, no bone healed and the long-term stability of the fracture end was impacted. In the 100 N group, there was no influence on fracture healing, but deformity healing was easly found. In the 150 N group, the fractures fixed and healed well. In circumstances of maintaining the appropriate bound stress, the cerclage bands added at the fracture site can effectively maintain the stability and can avoid fracture displacement or deformity healing, so as to protect the normal fracture healing, and the blood supply of periosteum in the fracture site cannot be affected. The healing progress can be accelerated.