التفاصيل البيبلوغرافية
| العنوان: |
Dislocation and survival rate of dual mobility cups in revision total hip arthroplasty in patients with high risk of instability. |
| المؤلفون: |
Ameztoy Gallego, Juan1 (AUTHOR) juanameztoygallego@gmail.com, Cruz Pardos, Ana1 (AUTHOR), Gomez Luque, Javier1 (AUTHOR), Cuadrado Rubio, Luis Eduardo1 (AUTHOR), Fernández Fernández, Ricardo1 (AUTHOR) |
| المصدر: |
International Orthopaedics. Jul2023, Vol. 47 Issue 7, p1757-1764. 8p. |
| مصطلحات موضوعية: |
*TOTAL hip replacement, *SURVIVAL rate, *HIP joint dislocation, *LUMBAR vertebrae diseases, *PERIPROSTHETIC fractures, *JOINT infections, *SPINAL surgery, *DISEASE risk factors, ACETABULUM surgery |
| مستخلص: |
Purpose: Instability remains as an unsolved complication after revision total hip arthroplasty (rTHA). Dual mobility (DM) cups have decreased dislocation rate in rTHA; however, there are few clinical studies that evaluate the risk of dislocation after rTHA in patients with high risk of instability. Methods: Between 2007 and 2019, 95 consecutive rTHA using a DM cup, in 93 patients with instability risk factors were retrospectively reviewed. Instability risk factors were defined as follows: deficient abductor mechanism (22.1%), previous dislocation (68.4%), Paprosky 3 acetabular bone defect (21.1%), neuromuscular disease (4.2%), lumbar spine arthrodesis (6.3%), and more than one previous surgery (33.6%). Mean follow-up was 4.3 ± 2.4 years. Clinical and radiographic parameters were reported. DM cup survival was determined using a Kaplan–Meier analysis with re-revision for any cause as the end-point. Surgical complications and re-dislocation rate was recorded. Results: Seven DM cups were re-revised; three due to aseptic loosening, three due to peri-prosthetic joint infection (PJI), and one due to instability. At seven years follow-up, the survival rate of the DM cup using re-revision for any reason as the end-point was 82.4% (95% confidence interval, 66.4–98.4%). There were 12 (12.6%) complications: two (2.1%) dislocations, six (6.3%) PJI, four (4.2%) peri-prosthetic fractures. Conclusion: Our findings suggest DM cups are effective reducing dislocation rate in rTHA in patients with a high risk of instability, without increasing early aseptic loosening and with a low rate of dislocation. Nevertheless, longer follow-up is needed to confirm implant stability and dislocation rates in the long term. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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