Summary

The effect of modified external suture on total hip arthroplasty

Abstract

Objective： to study the effect of improved posterior external suture on the stability and decrease the incidence of dislocation after total hip arthroplasty

Methods

2015.3—— 2016.7 months, 251 cases of total hip replacement, avascular necrosis of the femoral head in 96 cases, DDH92 cases, 21 cases of rheumatoid arthritis, ankylosing spondylitis in 7 cases, 35 cases of femoral neck fractures; 124 cases were male, 126 were female; the average age of 62 years. All patients were treated with posterior approach, close to the bone surface to cut off the outside of the group, after the operation, from the back of the femur to the greater trochanter of the femur, the trochanteric fossa and the anterolateral thigh with Kirschner wire to make four bone tunnel . The muscle and the joint capsule were sutured respectively by the tendon suture line.

Results

after the operation, the following angles were tested: 90 degrees of flexion, internal rotation of 20 degrees; extension of 10 degrees; adduction of 30 degrees, found that the suture tissue stability and no tear. The patients were followed up three months and six months, with no dislocation of the joints; lying on the floor, Bilateral external rotation symmetry.

Conclusion

the modified posterior external suture is

Method

of in situ suture. Compared with the traditional suture method, it does not lengthen the muscles, so it is not easy to tear. In addition, it was sutured to the posterior side of the greater trochanter, which was sutured in situ without increasing the external rotation of the lower limb.