J Korean Orthop Assoc.  2004 Feb;39(1):1-6.

Total Hip Arthroplasty with Hydroxyapatite-Coated Anatomic Femoral Stem

• Hwang SK
• Kim WK
• Kim HK

Abstract

PURPOSE
To evaluate minimum 5-year results of total hip arthroplasty using a hydroxyapatite (HA)-coated anatomic femoral stem. MATERIALS AND METHODS: Fifty hips in 46 patients, received total hip arthroplasty using a HA-coated anatomic femoral component, between March 1992 and April 1995, 39 hips (36 patients) were available for this study. RESULTS: The mean preoperative Harris hip score of 55.2 points increased to 91.5 points at one year, but reduced to 81.9 points at the last follow-up. Radiolucency was seen in 5 hips (12.8%) on the last follow-up radiograms. Femoral osteolysis occurred in 7 hips (17.9%) on the last follow-up radiograms. Four femoralstems (10.3%) were revised due to femoral osteolysis and loosening. The average duration between index operation and revision was 123 months. CONCLUSIONS: The HA-coated anatomical femoral stem gave an increased Harris hip score and lowered the incidence of thigh pain, however it did not prevent osteolysis due to polyethylene wear.

Keyword

Hip; Arthroplasty; Hydroxyapatite (HA); Anatomical; Femoral stem

MeSH Terms

Arthroplasty
Arthroplasty, Replacement, Hip*
Durapatite
Follow-Up Studies
Hip
Humans
Incidence
Osteolysis
Polyethylene
Thigh
Durapatite
Polyethylene