The Use of Harris Hip Score to Evaluate the Constrained Total Hip in Unstable Hip Surgeries, MOSTAFA M.A. MELEEGY, AHMED N. MORRAH, IHAB ELDESOUKY, AHMED H. ABDEL-AZEEM and MOHAMED M.Z. ELASLAMBOULY
Abstract
Background: The constrained acetabular cups are widely used to treat instability after hip arthroplasty. Aim of Study: This study used the Harris hip score after the use of the constrained acetabular component in order to assess hip joint function pre and post-operatively objectively. Patients and Methods: This cross-sectional study included 20 patients who underwent hip arthroplasty. These cases had hip instability either preoperatively or intra-operatively and they were all treated with hip arthroplasty involving the use of constrained acetabular component (The Single Articulation or Double Articulation Constrained cup). The follow-up period ranged from 12 to 30 months (the average was 20.4 months). Results: When compared to the initial (preoperative) Harris hip score, a significant rise of the Harris hip score was measured at 3 months and 1 year postoperatively, [mean 25 vs. 77 vs. 91, respectively]. The improvement between 3 months and 1 year was statistically significant. All the included cases had an initial (preoperative) poor Harris hip score. Of them, 10 (50%) turned into fair, and 8 (40%) turned into good, while 2 (10%) remained poor at 3 months postoperatively. At one year follow-up, none of the included cases had a poor Harris hip score, 11 cases (55%) turned to excellent and 9 (45%) other cases turned to good. Conclusion: Based on the Harris score, the use of con-strained acetabular component should be considered as a salvage procedure as it is an effective option in the treatment of patients with instability of the hip.