The Clinical and Radiologic Results of Total Hip Arthroplasty with an AML Hip Prosthesis: Minimum 7 Years' Follow-up Study
Journal of the Korean Hip Society
;
: 314-319, 2009.
Article
in Korean
| WPRIM
| ID: wpr-727133
ABSTRACT
PURPOSE:
To evaluate the long-term results (minimum 7 Years'follow-up) of cementless total hip arthroplasty using an Anatomic Locking Medullary (AML) hip prosthesis. MATERIALS ANDMETHODS:
Fifty-one patients (57 hips) underwent total hip arthroplasty between January 1995 and July 2002. They were followed up for a minimum of seven years (7.1 to 14.6) after the initial operation. The mean age of the patients was 56.8 years. The radiographs were reviewed and the clinical results were evaluated.RESULTS:
The mean Harris hip score improved from 52.4 points preoperatively to 88.2 points postoperatively. Of the 40 hips showing a good press-fit, 29 hips (72.5%) exhibited bone ingrowth fixation. Of the remaining 17 hips with a poorer press-fit, 7 hips (35.3%) showed bone ingrowth fixation and 6 hips (35.3%) had unstable fixation. Of the 36 hips showing bone ingrowth fixation, 28 hips (77.8%) exhibited stress mediated bone resorption. On the last follow-up radiographic examination, osteolysis occurred around the femoral stem and acetabular cup in 21 (36.8%) and 6 (10.5%) hips, respectively.CONCLUSION:
The results of cementless AML total hip arthroplasty were acceptable up to 7 years but polyethylene wear and osteolysis should be followed carefully over the long term.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Osteolysis
/
Arthroplasty
/
Bone Resorption
/
Follow-Up Studies
/
Polyethylene
/
Hip
/
Hip Prosthesis
Type of study:
Observational study
/
Prognostic study
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Hip Society
Year:
2009
Type:
Article
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