|
KMID : 0386720010130030259
|
|
Journal of the Korean Hip Society
2001 Volume.13 No. 3 p.259 ~ p.266
|
|
|
Circumferentially Porous Coated Multilock Femoral Stem iin Total Hip Replacement
|
|
Min Byung-Woo
Jeon Si-Hyun
|
|
|
Abstract
|
|
|
Purpose: To assess the results of total arthroplasty using the circumferentially porous coated Multilock femoral stem over a follow up period of more than 5 years.
Materials and Methods: We performed a clinical and radiographic assessment after a follow up period exceeding 5 years of 71 cases of total hip arthroplasty using the Multilock femoral stem.
Results: Average Harris hip score was improved from 51.4 points preoperatively to 91.7 points at the latest follow up. Radiographic analysis confirmed excellent endosteal bone formation (93%), minimal stress-shielding(grade 1), and
cortical hypertrophy(1.4%). At the latest follow up, 66 stems(93%) displayed stable bony fixation, two(2.8%) fibrous fixation, and three(4.2%) unstable fixation. Radiolucent lines developed most commonly in zone Ⅳ(36.6%). Ten hips(14.1%) revealted osteolysis mostly in zones Ⅰ and Ⅶ. Three hips(4.2%) exhibited mechanical failure of the stem.
Conclusion: The midterm results of the Multilock stem showed excellent endosteal formation and pain relief. Osteolytic lesions were limited to the proximal zones Ⅰ and Ⅶ. This may be due to excelent circumferential osteo-integration into the proximal stem. However the existence of one case of distal endosteal osteolysis necessitates further follow up.
|
|
|
KEYWORD
|
|
|
Total hip replacement, Multilock femoral stem, Circumferentially porous coating, Osteolysis
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
 
|