التفاصيل البيبلوغرافية
| العنوان: |
Reconstruction of AAOS type III and IV acetabular defects with the Ganz reinforcement ring: high failure in pelvic discontinuity. |
| المؤلفون: |
Hourscht, Cynthia, Abdelnasser, Mohammad, Ahmad, Sufian, Kraler, Lukas, Keel, Marius, Siebenrock, Klaus, Klenke, Frank, Abdelnasser, Mohammad K, Ahmad, Sufian S, Keel, Marius J, Siebenrock, Klaus A, Klenke, Frank M |
| المصدر: |
Archives of Orthopaedic & Trauma Surgery; Aug2017, Vol. 137 Issue 8, p1139-1148, 10p |
| مصطلحات موضوعية: |
PELVIC abnormalities, PELVIC bones, ACETABULARIA acetabulum, JOINT surgery, PATIENT compliance, DIAGNOSIS, WOUNDS & injuries, ACETABULUM surgery, ACETABULUM (Anatomy), LONGITUDINAL method, REOPERATION, TOTAL hip replacement, EQUIPMENT & supplies |
| مستخلص: |
Background: Large acetabular defects and pelvic discontinuity represent complex problems in revision total hip arthroplasty. This study aimed to investigate whether reconstruction with the Ganz reinforcement ring would provide durable function in large acetabular defects.Patients and Methods: 46 hips (45 patients, 19 male, 26 female, mean age 68 years) with AAOS type III and IV defects undergoing acetabular revision with the Ganz reinforcement ring were evaluated at a mean follow-up of 74 months (24-161 months). Fourteen patients died during follow-up. All surviving patients were available for clinical assessment and radiographic studies. Radiographs were evaluated for bone healing and component loosening. A Cox-regression model was performed to identify factors influencing survival of the Ganz-ring.Results: In the group of AAOS III defects, 3 of 26 acetabular reconstructions failed, all due to aseptic loosening. In pelvic discontinuity (AAOS IV), 9 of 20 hips failed due to aseptic loosening (n = 4), deep infection (n = 3), and non-union of the pelvic ring (n = 2). With acetabular revision for any reason as an endpoint, the estimated Kaplan-Meier 5-year survival was 86% in type III defects and 57% in type IV defects, respectively. The presence of pelvic discontinuity was identified as the only independent predictive factor for failure of the Ganz ring acetabular reconstruction (AAOS III vs. IV, Hazard ratio: 0.217, 95%, Confidence interval: 0.054-0.880, p = 0.032).Conclusion: The Ganz reinforcement ring remains a favorable implant for combined segmental and cavitary defects. However, defects with pelvic discontinuity demonstrate high failure rates. The indications should therefore be narrowed to acetabular defects not associated with pelvic discontinuity. [ABSTRACT FROM AUTHOR] |
|
Copyright of Archives of Orthopaedic & Trauma Surgery is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
