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KMID : 0386719920040010033
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Journal of the Korean Hip Society
1992 Volume.4 No. 1 p.33 ~ p.40
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Hip Replacement Arthroplasty in Rheumatoid Coxarthritis
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김영민
이춘기/김희중/박건영/이성철/강승백
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Abstract
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The results oftwenty seven hip replacement arthroplasties, performed from Jan. 1981 to Dec. 1990 at Seoul National University Hospital in sixteen patients whose follow-up medical and radiological data were available, were reviewd. Duration of
follow-up ranged from 12 to 141 months with an average of 57 months. The final diagnosis was rheumatoid arthritis in 11 patients and juvenile rheumatoid arthritis in 5 patients.
The operation time and periopertive transfusion amount were not different from those of other diseases. Clinical rsults showed more significant improvement in pain than in function. Intraoperative femoral frcture occurred in 2 hips.
There
were no dislocations, but cup malposition was noted in 8 hips.
Only one hip had a superficial wound infection which was cured with antibiotics only Loosening developed in seven hips at the average of 5 years after operation and its rate was higher than that of others. Cup protusion developed in
two
hips
which had a preoperative acetabular protrusion and were treated with bipolar endoprosthesis and bone graft. This finding seemed to suggest bipolar endoprosthesis is not adequate for rheumatoid coxarthritis.
Of 7 ollsenings and 2 cup protrusions, revision was done only in 2 hips and the remaining 7 ips had not required revision. The low activity of RA patients is thought to be a possible explanation for this relatively low revision rate.
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