[Total hip arthroplasty for post-traumatic arthritis after internal fixation of acetabular fracture].

OBJECTIVE

To study the clinical outcome of total hip arthroplasty(THA) for traumatic arthritis after acetabular fracture.

METHODS

From June 2010 to June 2014, 33 hips in 33 patients with traumatic arthritis after acetabular fracture were retrospective analyzed including 21 males and 12 females with a mean age of 44.6 years old. All the patients received THA with bio-prostheses. Harris score was used to evaluate the hip function of patients before and after operation, the X-ray was adopted for radiographic evaluation of the hip prosthesis.

RESULTS

All patients were followed up for 7 to 38 months with an average of 21.6 months. The Harris score increased from preoperative 53.6±2.4 to 94.0±3.0 at the final follow-up, the difference was statistically significant(t=55.37, P<0.05). The X-ray evaluation showed the prosthesis was in good position, no loosening of the prosthesis, dislocation and periprosthetic osteolysis.

CONCLUSIONS

THA is an effective treatment for the traumatic arthritis after acetabular fracture;internal fixation of acetabular fractures could not be removed if it shows difficult but does not affect the prosthesis placement.