scholarly journals Predicting revision risk for aseptic loosening of femoral components in total hip arthroplasty in individual patients—A finite element study

2007 ◽  
Vol 25 (6) ◽  
pp. 779-788 ◽  
Author(s):  
Alexander B. Lennon ◽  
John R. Britton ◽  
Ruairi F. MacNiocaill ◽  
Damien P. Byrne ◽  
Patrick J. Kenny ◽  
...  
Keyword(s):  
Finite Element ◽  
Total Hip Arthroplasty ◽  
Aseptic Loosening ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Finite Element Study ◽  
Revision Risk ◽  
Element Study

scholarly journals Novel Stemless Hip Prosthesis Design and Finite Element Analysis to validate stemless Prosthesis for Reduction of Aseptic Loosening in Total Hip Arthroplasty

2020 ◽  
Author(s):  
Nishan Khadka ◽  
Mukesh Yadav ◽  
Adhish Ghimire
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Total Hip Arthroplasty ◽  
Aseptic Loosening ◽  
Hip Arthroplasty ◽  
Hip Prosthesis ◽  
Element Analysis ◽  
Total Hip ◽  
Conventional Models ◽  
Better Than

Total Hip Arthroplasty/ Replacement is a major corrective procedure involving replacement of femoral head and neck of the long bone connected to the pelvis. Conventional methods involved using long stemmed Titanium Alloy (Ti6Al4V) implants with a Cobalt-Chrome (Co-Cr) spherical caps. The invasiveness, large distributions of interfacial stresses induce stress shielding and bone resorption leading to loosening and painful remission surgeries specifically in the younger more active individuals. The need to improve upon the less invasive stemless models in warranted. This paper incorporates an improved novel design to a stemless hip prosthesis. Finite element analysis concluded average stresses of 9MPa, average strains of 0.0063 mm/mm, total deformation of 88mm all within comparable ranges and better than conventional long-stemmed models as prosthesis for an exaggerated point load of thrice the body weight of human (867N) taken redundantly. Fatigue life is better than conventional models crossing 1010 cycles for the extreme loading. The contact stresses also proved to be lesser and spread over a smaller area reducing the chances of aseptic loosening compared to conventional models.

scholarly journals Incidence of low-grade infection in aseptic loosening of total hip arthroplasty

2010 ◽  
Vol 81 (6) ◽  
pp. 667-673 ◽  
Author(s):  
Dirk Jan F Moojen ◽  
Gijs van Hellemondt ◽  
H Charles Vogely ◽  
Bart J Burger ◽  
Geert H I M Walenkamp ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Aseptic Loosening ◽  
Hip Arthroplasty ◽  
Low Grade ◽  
Total Hip

scholarly journals No Association of CALCA Polymorphisms and Aseptic Loosening after Primary Total Hip Arthroplasty

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Tünay Aydin-Yüce ◽  
Gina Kurscheid ◽  
Hagen Sjard Bachmann ◽  
Thorsten Gehrke ◽  
Marcel Dudda ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Aseptic Loosening ◽  
Hip Arthroplasty ◽  
Fragment Length Polymorphism ◽  
Genotype Distribution ◽  
Chain Reaction ◽  
Total Hip ◽  
Polymerase Chain ◽  
European Group ◽  
Primary Total Hip Arthroplasty

Studies of aseptic loosening showed an influence of calcitonin andα-CGRP, both encoded from the calcitonin/α-CGRP (CALCA) gene by alternative splicing. The aim of this study was to detect a possible association of the CALCA polymorphisms P1(rs1553005), P2(rs35815751), P3(rs5240), and P4(rs2956) with the time to aseptic loosening after THA. 320 patients suffering from aseptic loosening after primary total hip arthroplasty were genotyped for CALCA-P1 polymorphism and 161 patients for CALCA-P2 and CALCA-P3 polymorphisms and 160 patients for CALCA-P4 polymorphism. CALCA genotypes were determined by polymerase chain reaction and restriction-fragment length polymorphism. The genotype distribution of CALCA-P1 was CC 10%, CT 43%, and 46% TT. CALCA-P2 showed a distribution of 90.7%II, 8.7% ID, and 0.6% DD. The CALCA-P3 genotype distribution was 97.5% TT and 2.5% TC. The CALCA-P4 genotype distribution was 48.1% AA, 40% AT, and 11.9% TT. Significant differences between the CALCA genotypes were not found concerning age at implantation and replantation, BMI, gender, and cementation technique. No associations of the time for aseptic loosening were found. In conclusion, we did not find a significant association of CALCA polymorphisms and the time to aseptic loosening after primary THA in a Western European group.

Revision risk in a cohort of US patients younger than 55 undergoing primary elective total hip arthroplasty

2021 ◽  
Author(s):  
Heather A. Prentice ◽  
Priscilla H. Chan ◽  
Kathryn E. Royse ◽  
Adrian D. Hinman ◽  
Nithin C. Reddy ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Revision Risk

scholarly journals Promising results of revision total hip arthroplasty using a hexagonal, modular, tapered stem in cases of aseptic loosening

PLoS ONE ◽  
2020 ◽  
Vol 15 (6) ◽  
pp. e0233035
Author(s):  
Jan Schwarze ◽  
Christoph Theil ◽  
Georg Gosheger ◽  
Ralf Dieckmann ◽  
Burkhard Moellenbeck ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Aseptic Loosening ◽  
Hip Arthroplasty ◽  
Revision Total Hip Arthroplasty ◽  
Total Hip ◽  
Tapered Stem
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