| Clinical and radiographic results of metal-on-metal hip resurfacing with a minimum ten-year follow-up. | |
| | |
MedLine Citation:
|
PMID: 21084576 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
BACKGROUND: There was a need for information about the long-term performance of the modern generation of hip resurfacing implants. A retrospective review of the first 100 hips that had implantation of one resurfacing design and had been followed for a minimum of ten years was performed. METHODS: Between 1996 and 1998, 100 CONSERVE PLUS hip resurfacing devices were implanted by a single surgeon in eighty-nine patients. The mean age of the patients was 49.1 years, and fifty-nine patients were male. Primary osteoarthritis was the etiology for sixty-four hips. All patients were assessed clinically and radiographically. RESULTS: The mean duration of follow-up was 11.7 years (range, 10.8 to 12.9 years). Two patients were lost to follow-up, and five patients died of causes unrelated to the surgery. Eleven hips had conversion to total hip arthroplasty because of loosening of the femoral component (eight), a femoral neck fracture (one), recurrent subluxation (one), and late infection (one). The Kaplan-Meier survivorship was 88.5% at ten years. None of the resurfacing arthroplasties failed in the twenty-eight hips that had a femoral component of >46 mm and no femoral head cystic or necrotic defects of >1 cm. Five hips had narrowing of the femoral neck, three had radiolucent zones interpreted as osteolysis, and twenty had signs of neck-socket impingement. Five hips had radiolucencies around the metaphyseal stem (two partial and three complete) that had been stable for 7.8 to 10.2 years. The mean scores on the University of California at Los Angeles (UCLA) system at the time of the latest follow-up were 9.5 points for pain, 9.3 points for walking, 8.9 points for function, and 6.8 points for activity; the mean scores on the physical and mental components of the Short Form-12 (SF-12) were 47.3 and 50.5 points, respectively; and the mean Harris hip score was 90 points. CONCLUSIONS: The results of the present series constitute a reference point to which subsequent series should be compared. These ten-year results in a group of young patients are satisfactory, and the low rate of osteolysis is encouraging, but longer follow-up is required for comparison with conventional total hip arthroplasty. |
| | |
Authors:
|
Harlan C Amstutz; Michel J Le Duff; Patricia A Campbell; Thomas A Gruen; Lauren E Wisk |
Related Documents
:
|
19651826 - The use of alendronate in the treatment of avascular necrosis of the femoral head: foll... 3403586 - Total hip arthroplasty in the ankylosed hip. a ten-year follow-up. 19211376 - Heterotopic ossification after total hip arthroplasty (tha) in congenital hip disease: ... 15891726 - Arthroscopic partial limbectomy in hip joints with acetabular hypoplasia. 2574256 - Relation between interatrial shunts and decompression sickness in divers. 11595466 - Therapy for chronic hepatitis c. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: The Journal of bone and joint surgery. American volume Volume: 92 ISSN: 1535-1386 ISO Abbreviation: J Bone Joint Surg Am Publication Date: 2010 Nov |
Date Detail:
|
Created Date: 2010-11-18 Completed Date: 2010-12-21 Revised Date: 2011-06-08 |
Medline Journal Info:
|
Nlm Unique ID: 0014030 Medline TA: J Bone Joint Surg Am Country: United States |
Other Details:
|
Languages: eng Pagination: 2663-71 Citation Subset: AIM; IM |
Affiliation:
|
Joint Replacement Institute, Saint Vincent Medical Center, Los Angeles, CA 90057, USA. harlanamstutz@dochs.org |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adolescent Adult Aged Arthroplasty, Replacement, Hip / adverse effects, methods* Cohort Studies Female Femur Head / radiography, surgery Follow-Up Studies Hip Joint / physiopathology, radiography*, surgery* Hip Prosthesis* Humans Kaplan-Meier Estimate Male Metals Middle Aged Multivariate Analysis Orthopedic Procedures / adverse effects, methods Pain Measurement Pain, Postoperative / physiopathology Postoperative Complications / physiopathology, radiography Proportional Hazards Models Prosthesis Design Prosthesis Failure Range of Motion, Articular / physiology Retrospective Studies Risk Assessment Statistics, Nonparametric Time Factors Treatment Outcome Young Adult |
| Chemical | |
Reg. No./Substance:
|
0/Metals |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: The influence of procedure volumes and standardization of care on quality and efficiency in total jo...
Next Document: In vivo biological response to vitamin E and vitamin-E-doped polyethylene.