Li Y.-W.,Baoding Municipal First Center Hospital |
He R.-L.,Baoding Municipal Second Hospital |
Bai X.-L.,Baoding Municipal First Center Hospital |
An M.,Baoding Municipal First Center Hospital |
And 4 more authors.
Chinese Journal of Tissue Engineering Research | Year: 2014
Background: Femoral offset reconstruction is significant for recovering strength of abductor and the balance of soft tissue tension surrounding hip joint, maintaining joint stabilization, restoring joint function, reducing limping after replacement, decreasing prosthetic abrasion, and the incidence of joint prosthesis dislocation. Objective: To discuss effect of femoral offset reconstruction on hip joint function in total hip arthroplasty. Methods: We comparatively analyzed 20 patients (20 hips) undergoing the modular prosthesis (S-ROM) total hip arthroplasty and 19 patients (20 hips) undergoing the one modular prosthesis (Corail) total hip arthroplasty at the same time. According to Harris hip score and radiography results, hip joint function and femoral offset reconstruction rate were comparatively studied in both groups. Results And Conclusion: No infection, fracture, dislocation, deep venous thrombosis or neurovascular injury occurred in either group. Clinical follow-up results: In the modular prosthesis and one modular prosthesis groups, there was no significant difference in preoperative Harris hip score between the femoral offset reconstruction and non-reconstruction groups (P > 0.05). At 12 months and the latest follow-up, the Harris hip score was higher in the patients with femoral offset reconstruction than those with femoral offset non-reconstruction (P < 0.05). The range of abduction of hip joint was larger in patients with femoral offset reconstruction than those with femoral offset non-reconstruction (P < 0.05). Radiographic follow-up results: significant differences in the rate of femoral offset reconstruction were detected between the modular prosthesis and one modular prosthesis groups (χ2 = 3.956, P < 0.05). 39 (98%) femoral stems were in neutral position and one (2.5%) was in mild valgus. There was no significant difference in the abduction angle and the anteversion angle between patients with and without femoral offset reconstruction (P > 0.05). These results indicated that functional recovery and the range of abduction were better in patients with femoral offset reconstruction than those without femoral offset reconstruction. Modular prosthesis has a high rate of femoral offset reconstruction.