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KMID : 0361620140490060446
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Journal of the Korean Orthopaedic Association
2014 Volume.49 No. 6 p.446 ~ p.453
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The Result of Treatment of Femoral Periprosthetic Fractures after Total Knee Art
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Kim Jun-Beom
Song In-Soo
Sun Dong-Hyuk
Choi Hyun
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Abstract
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Purpose: We assessed and compared the clinical and radiologic outcomes of treatment in periprosthetic fractures of the femur after total knee arthroplasty.
Materials and Methods: We compared 22 knees, 22 patients of femoral periprosthetic fractures which had been fixed with absolute stabilization such as plate or screw fixation in 16 cases (group A), and with relative stabilization such as retrograde intramedullary nailing or Ender nailing in six cases (group B) from November 2004 to March 2013; the mean follow-up period was 51.9 months.
Results: The mean tibio femoral angle and the mean mechanical axis showed statistically significant change in group B, between before fracture and last follow-up. The mean bone union time and the mean hospital for special surgery score were not significantly different between group A and B. Nonunion was demonstrated in one case in each group, malunion was demonstrated in one case in group B.
Conclusion: In the treatment of periprosthetic fractures of the femur after total knee arthroplasty, absolute stabilization had an advantage for regain of limb alignment. Among the complications, more cases of refracture and infection were observed in the absolute stabilization group, while more cases of nonunion and malunion were observed in the relative stabilization group.
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KEYWORD
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total knee replacement, internal fixators
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