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KMID : 0386720100220010058
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Journal of the Korean Hip Society
2010 Volume.22 No. 1 p.58 ~ p.65
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Management of Osteolysis around a Stable Harris-Galante Acetabular Cup -Retention vs Revision of the Acetabular Component-
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Han Seung-Beom
Kyeong Bong-Soo
Kim Tae-Kwon
Park Sang-Won
Park Jong-Hoon
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Abstract
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Purpose: We analyzed and compared 30 clinical cases of acetabular osteolysis around a stably fixed acetabular cup, and this was managed by changing the liner along with retaining or revising the cup.
Materials and Methods: We analyzed 30 patients who underwent acetabular component revision or retention with a bone graft for osteolysis around a stably fixed Harris-Galante acetabular cup and these patients were followed up for more than 2 years. There were 7 cases with a conserved the acetabular cup and only the liner was changed, and 23 cases with a totally revised acetabular component. We compared the size of the acetabular cup, the thickness of the polyethylene liner, the progression of osteolysis and the clinical outcomes.
Results: The Harris hip score was improved in both groups. In the retention group, during an average of 59.9 months of follow up, 7 cases showed stable fixation and 3 cases showed locally advanced osteolysis. In the revision group, during an average of 57.2 months of follow up, all 20 cementless acetabular cups showed stable fixation.
Conclusion: We suggest that in patients with osteolysis around the stable cementless acetabular cup, both methods show satisfactory clinical outcomes. But considering recurrence of osteolysis, cup revision is more reliable than changing the liner with a bone graft.
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KEYWORD
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Acetabulum, Osteolysis, Revision hip arthroplasty, Liner change
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