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KMID : 1028220130250040260
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Hip & Pelvis
2013 Volume.25 No. 4 p.260 ~ p.266
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Revision Hip Arthroplasty with a Cementless Femoral Stem
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Chung Young-Yool
Lim Chae-Hyun
Kim Chung-Young
Kim Jeong-Seok
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Abstract
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Purpose: To evaluate the clinical and radiographic results of patients who received revision total hip arthroplasty using cementless femoral stems.
Materials and Methods: This study included 26 patients who underwent revision total hip arthroplasty using a cementless femoral stems in our hospital, between Jan 2000 and May 2010, and were able to be evaluated in the final follow-up. The mean age was 63.8 years at the time of the revision surgery, and the follow up period was an average of 45 months. The causes of revision were aseptic loosening in 11 cases, periprosthetic fracture in 6 cases, femoral osteolysis in 6 cases, and infection in 3 cases. The radiologic results were evaluated in term of subsidence, loosening, and the stress shielding. The clinical results were evaluated by the Harris hip score and thigh pain.
Results: Harris hip score improved from 41.2 points preoperatively to 85.8 points at the final follow-up. There were 5 cases that complained of thigh pain at the last follow-up. Subsidence of femoral stem of more than 10 mm was observed in 3 cases. Stress shielding was noticed in 6 hips. The 3 grafted strut allografts were completely fused with the host bone. Complications included 2 cases of intraoperative periprosthetic fracture and 3 cases of dislocation.
Conclusion: We obtained favorable clinical and radiologic outcomes in revision total hip arthroplasty using a cementless femoral stems. However, thigh pain and stress shielding resulted from the diameter of femoral stem being too large
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KEYWORD
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Revision hip arthroplasty , Cementless femoral stems
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