Clinical and radiological evaluation of post total hip arthroplasty patients with acetabulum defect

Abstract

Background: Total Hip Arthroplasty (THA) is one of many therapies given to hip joint injury patients. The main indication for THA in elderly patients is degenerative diseases of the joints. One of the difficulties encountered in this THA procedure is to overcome the acetabulum deficiency, with Paprosky Classification. This study aims to evaluate patients with acetabulum defect that have undergone THA at Dr. Soetomo Hospital in 2014-2016. Methods: This was an observational retrospective study with descriptive analysis. The sample amount was 20 patients, from 80 patients who had THA procedure. Patients were evaluated based on the wear from acetabulum, migration from a cup, the presence of bone loss, heterotopic ossification, and also clinical condition based on Harris Hip Score. The presented results were analyzed by using Kruskal-Wallis on SPSS 19.0 for Windows Program. Results: Hypothesis testing was performed on THA patients based on acetabulum defect type I, II, and III in one, two, and three years after surgery respectively. Massin Score resulted no differences with p = 0.156, p = 0.574, and p = 0223. Bone Loss Classification resulted no differences with p = 0.296, p = 0.287, and p = 0223. No difference on Wear Rate with p = 0.072, p = 0.110, and p = 0.325. There was no difference of Harris Hip Score with p = 0.320, p = 0.082, and p = 0.472. Conclusion: There were no significant differences in radiological evaluation of the Migration Rate, Heterotopic Ossification or Bone Loss, Wear Rate, and on clinical evaluation of Harris Hip Score in all three groups of evaluated acetabulum defects.

Morselized bone autograft for high placement of acetabular component closure with hip arthroplasty revision after 3-years screws and cup loosening: A case report

“…The data in our patient from primary THA shows the acetabular cups was placed ±35 mm superior to the vertical centre of rotation (COR), it was also mention in a reports from 51 patients undergoing high hip centre arthroplasty revision with mean height 43 mm above inter-teardrop line compared with 14 mm from normal anatomic centre height and no acetabular component migrated [3] . On the other hand, study in one of our centre involving 20 patient undergoes THA in anatomical location of acetabulum with acetabular defect mention that 3-years follow up in Paprosky Type 3, 75 % of the patient was likely to experience the implant migration [17] .…”