Primary Total Hip Arthroplasty in Severe Dysplastic Hip Osteoarthritis With a Far Proximal Cup Position

2019 ◽  
Vol 34 (5) ◽  
pp. 920-925 ◽  
Author(s):  
Markus T. Berninger ◽  
Sven Hungerer ◽  
Jan Friederichs ◽  
Fabian M. Stuby ◽  
Christian Fulghum ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Hip Osteoarthritis ◽  
Total Hip ◽  
Dysplastic Hip ◽  
Cup Position ◽  
Primary Total Hip Arthroplasty

scholarly journals Acetabular cup position and risk of dislocation in primary total hip arthroplasty

2016 ◽  
Vol 88 (1) ◽  
pp. 10-17 ◽  
Author(s):  
Kurt G Seagrave ◽  
Anders Troelsen ◽  
Henrik Malchau ◽  
Henrik Husted ◽  
Kirill Gromov
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Acetabular Cup ◽  
Total Hip ◽  
Cup Position ◽  
Acetabular Cup Position ◽  
Primary Total Hip Arthroplasty

Chronological Changes in Functional Cup Position at 10 Years after Total Hip Arthroplasty

2017 ◽  
Vol 27 (5) ◽  
pp. 477-482 ◽  
Author(s):  
Yusuke Okanoue ◽  
Masahiko Ikeuchi ◽  
Shogo Takaya ◽  
Masashi Izumi ◽  
Koji Aso ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Hip Osteoarthritis ◽  
Standing Position ◽  
Anterior Dislocation ◽  
Total Hip ◽  
Postoperative Change ◽  
Significant Difference ◽  
Cup Position

Purpose This study aims to clarify the chronological changes in functional cup position at a minimum follow-up of 10 years after total hip arthroplasty (THA), and to identify the risk factors influencing a significant difference in functional cup position during the postoperative follow-up period. Methods We evaluated the chronological changes in functional cup position at a minimum follow-up of 10 years after THA in 58 patients with unilateral hip osteoarthritis. Radiographic cup position was measured on anteroposterior pelvic radiographs with the patient in the supine position, whereas functional cup position was recorded in the standing position. Radiographs were obtained before, 3 weeks after, and every 1 year after surgery. Results Functional cup anteversion (F-Ant) increased over time, and was found to have significantly increased at final follow-up compared to that at 3 weeks after surgery (p<0.01). The maximum postoperative change in F-Ant was 17.0° anteriorly; 12 cases (21%) showed a postoperative change in F-Ant by >10° anteriorly. Preoperative posterior pelvic tilt in the standing position and vertebral fractures after THA were significant predictors of increasing functional cup anteversion. Conclusions Although chronological changes in functional cup position do occur after THA, their magnitude is relatively low. However, posterior impingement is likely to occur, which may cause edge loading, wear of the polyethylene liner, and anterior dislocation of the hip. We believe that, for the combined anteversion technique, the safe zone should probably be 5°-10° narrower in patients predicted to show considerable changes in functional cup position compared with standard cases.

Posterior distal cement extrusion during primary total hip arthroplasty: A cause for concern?

1999 ◽  
Vol 14 (7) ◽  
pp. 832-839 ◽  
Author(s):  
Jonathan L. Knight ◽  
Timothy Coglon ◽  
Chad Hagen ◽  
John Clark
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Primary Total Hip Arthroplasty
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