Failure of Primary Total Knee Arthroplasty: Analysis of Causes in 55 Patients

失敗之全膝關節置換手術：55位病例分析

洪志昌(Chin-Chang Hueng) ； 李建和(Chian-Her Lee) ； 吳興盛(Shing-Sheng Wu)

《Journal of Orthopaedic Surgery Taiwan》 21卷2期 (2004/06) Pp. 83-89

並列摘要

Background and Purpose: Primary total knee arthroplasty (TKA) is usually
performed patients with osteoarthritis or rheumatic arthritis. As the number of
primary TKA procedures and life expectancy of the population increases, the
failure rate of TKA is also increasing. The purpose of this study was to evaluate
the causes of failed TKA.
Material and Methods: We analyzed 59 cases of failed primary TKA in 55
patients (46 women and 9 men). The patients were divided into 2 groups based
on the duration between the index TKA operation and revision surgery: Group 1
was early failure at less than 2 years, and group 2 was late failure at more than 2
years. The patients' complete history was obtained before revision TKA, and
they underwent physical examination and weight-bearing radiography of the
knee. In addition, surgical findings were reviewed.
Results: Group 1 included 13 patients with failed TKA due to infection (n=8,
61.5%), polyethylene wear (n=4, 30.7%), or an overstuffed prosthesis (n=1,
7.6%). Group 2 included 46 patients in whom failure was due to polyethylene
wear (n=39, 84.8%), late infection (n=5, 10.9%), or malalignment of the femoral
component or arthrofibrosis (n=1 each, 2.2%).
Conclusion: Infection is the most common cause of early failure of TKA, and
polyethylene wear is the most common cause of late failure of TKA.

並列關鍵字

TKA failure