Optimal orientation of implanted components in total hip arthroplasty with polyethylene on metal articulation

Cited 17 time in webofscience Cited 0 time in scopus
  • Hit : 556
  • Download : 10
Background. In marly studies related to the total hip arthroplasty, it has been found that incorrect alignment of the total hip component is one of the major factors influencing mechanical failures. Although various recommendations for cup orientation have been presented, there were few studies that Seek to determine a proper orientation of the implants based oil the human motion data. The objective of this study is to determine all optimum orientation of the hip implant considering various daily activities. Methods. Firstly, the cup orientations free of impingement were Calculated for a given set of implant geometric parameters and file required range of motion for daily activities measured ill 10 subjects. Next, file optimum values for the cut) orientation and stem anteversion avoiding impingement and minimizing cup wear were determined for the proposed motion criteria. Findings. Different CLIP orientation was obtained its optimum for each combination of the neck angles (40 degrees and 50 degrees) and oscillation angles (120 degrees and 135 degrees). The corresponding optimum stem anteversion was also different when different neck angle was used. Interpretation. As the margin for the impingement-free orientation of the Clip was small, the optimum cup orientation and stem anteversion should be adopted specific for each combination of the neck angle and oscillation an-le. (C) 2008 Elsevier Ltd. All rights reserved.
Publisher
ELSEVIER SCI LTD
Issue Date
2008-10
Language
English
Article Type
Article
Keywords

ACETABULAR COMPONENT; CUP PLACEMENT; OPTIMAL RANGE; JOINT MOTION; REPLACEMENT; DISLOCATION; HEAD; IMPINGEMENT; NAVIGATION; SYSTEM

Citation

CLINICAL BIOMECHANICS, v.23, no.8, pp.996 - 1003

ISSN
0268-0033
DOI
10.1016/j.clinbiomech.2008.04.012
URI
http://hdl.handle.net/10203/91396
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 17 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0