The ceramic-on-metal coupling in total hip replacements for young patients: a review study

2011 ◽  
Vol 9 (1) ◽  
pp. 2-10 ◽  
Author(s):  
Alberto Cigada ◽  
Giulio Cotogno ◽  
Roberto Chiesa

2009 ◽  
Vol 24 (2) ◽  
pp. e77 ◽  
Author(s):  
David Ayers ◽  
Peyton Hays ◽  
Mark Eskander ◽  
Daniel Osuch ◽  
Henrik Malchau ◽  
...  


2003 ◽  
Vol 13 (1) ◽  
pp. 31-35 ◽  
Author(s):  
J. Fisher ◽  
E. Ingham ◽  
M.H. Stone


2021 ◽  
Vol 11 (6) ◽  
pp. 2852
Author(s):  
Maeruan Kebbach ◽  
Christian Schulze ◽  
Christian Meyenburg ◽  
Daniel Kluess ◽  
Mevluet Sungu ◽  
...  

The calculation of range of motion (ROM) is a key factor during preoperative planning of total hip replacements (THR), to reduce the risk of impingement and dislocation of the artificial hip joint. To support the preoperative assessment of THR, a magnetic resonance imaging (MRI)-based computational framework was generated; this enabled the estimation of patient-specific ROM and type of impingement (bone-to-bone, implant-to-bone, and implant-to-implant) postoperatively, using a three-dimensional computer-aided design (CAD) to visualize typical clinical joint movements. Hence, patient-specific CAD models from 19 patients were generated from MRI scans and a conventional total hip system (Bicontact® hip stem and Plasmacup® SC acetabular cup with a ceramic-on-ceramic bearing) was implanted virtually. As a verification of the framework, the ROM was compared between preoperatively planned and the postoperatively reconstructed situations; this was derived based on postoperative radiographs (n = 6 patients) during different clinically relevant movements. The data analysis revealed there was no significant difference between preoperatively planned and postoperatively reconstructed ROM (∆ROM) of maximum flexion (∆ROM = 0°, p = 0.854) and internal rotation (∆ROM = 1.8°, p = 0.917). Contrarily, minor differences were observed for the ROM during maximum external rotation (∆ROM = 9°, p = 0.046). Impingement, of all three types, was in good agreement with the preoperatively planned and postoperatively reconstructed scenarios during all movements. The calculated ROM reached physiological levels during flexion and internal rotation movement; however, it exceeded physiological levels during external rotation. Patients, where implant-to-implant impingement was detected, reached higher ROMs than patients with bone-to-bone impingement. The proposed framework provides the capability to predict postoperative ROM of THRs.





Author(s):  
Eileen S. Cadel ◽  
L.D. Timmie Topoleski ◽  
Oleg Vesnovsky ◽  
Charles R. Anderson ◽  
Robert H. Hopper ◽  
...  


2015 ◽  
Vol 26 (2) ◽  
pp. 186-192 ◽  
Author(s):  
Christopher M. Jack ◽  
Jo Howard ◽  
Emad S. Aziz ◽  
Rachel Kesse-Adu ◽  
Marcus J. Bankes




1970 ◽  
Vol &NA; (72) ◽  
pp. 145???160 ◽  
Author(s):  
J. N. WILSON ◽  
JOHN T. SCALES


Sign in / Sign up

Export Citation Format

Share Document