Document Detail

Migration of the uncemented CLS acetabular component.
MedLine Citation:
PMID:  10037336     Owner:  NLM     Status:  MEDLINE    
The migration of uncemented press-fit CLS (Cementless Total Hip Replacement System) acetabular cups was measured retrospectively from standard anteroposterior pelvic radiographs using a digitizer and software specifically developed for this study. A radiographic and clinical review also were undertaken. There were 96 patients in the study group. The mean follow-up for radiographic review was 2.23 years, and the mean follow-up for clinical review was 3 years. Migration was measured in the cranial and medial directions. Mean migration of the cup at 2 years was 1.35 mm in the cranial direction and 2.15 mm in the medial direction. Radiographic appearances altered little over the study period. Fifty-five (57.3%) patients demonstrated bone ingrowth onto the prosthesis, predominantly in DeLee and Charnley zone 1. Twenty-one patients demonstrated nonprogressive sclerotic lines; no lucent lines were encountered. Statistical analysis showed a significant correlation between acetabular ingrowth and reduced cup migration in the medial direction (P = .011 at 5 years). There was no statistical relationship between migration of the cup and radiographic features or clinical outcome.
M S Davies; B C Parker; D A Ward; E Hern; J Hua; P S Walker
Related Documents :
16826106 - Periapatite may not improve micromotion of knee prostheses in rheumatoid arthritis.
11012546 - Serial measurement of polyethylene wear of well-fixed cementless metal-backed acetabula...
10884206 - Long-term survivorship of cemented all-polyethylene acetabular components in patients >...
9393906 - Stanmore custom-made extendible distal femoral replacements. clinical experience in chi...
24268976 - Clinical outcomes in high flexion total knee arthroplasty were not superior to standard...
8633136 - Ambulatory sclerotherapy for malignant pleural effusions.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Orthopedics     Volume:  22     ISSN:  0147-7447     ISO Abbreviation:  Orthopedics     Publication Date:  1999 Feb 
Date Detail:
Created Date:  1999-04-16     Completed Date:  1999-04-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7806107     Medline TA:  Orthopedics     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  219-22     Citation Subset:  IM    
Department of Orthopedic Surgery, Kingston Hospital OHS Trust, Kingston upon Thames, Surrey, United Kingdom.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Arthroplasty, Replacement, Hip / adverse effects*,  instrumentation
Bone Cements
Foreign-Body Migration / etiology*,  radiography*
Image Processing, Computer-Assisted
Middle Aged
Prosthesis Design
Prosthesis Failure*
Retrospective Studies
Time Factors
Reg. No./Substance:
0/Bone Cements

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Influence of tibial bone quality on loosening of the tibial component in total knee arthroplasty for...
Next Document:  Migration of the uncemented CLS femoral component.