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Thirty-day Postoperative Complications following Primary Total Knee Arthroplasty: A Retrospective Study of Incidence and Risk Factors at a Single Center in China.

Abstract：

BACKGROUND:Total knee arthroplasty (TKA) may be associated with serious complications that adversely affect outcomes and increase the likelihood of disability. However, few studies with sufficient sample size have reported postoperative complications following TKA among Chinese patients. This study aimed to evaluate complications of TKA within 30 postoperative days and to identify the related risk factors. METHODS:A retrospective complication-based analysis of TKA using the arthroplasty registry between 2008 and 2013 was performed by summarizing complications of TKA within 30 postoperative days. Multivariate logistic regression was used to identify the predicting factors for complications 30 days after operation. RESULTS:A total of 1542 patients underwent 2254 primary TKA between January 2008 and December 2013. A total of 137 complications occurred within 30 days after operation with an incidence rate of 6.1%. The incidence rate of major systemic complications within postoperative 30 days was 2.3%, with cardiovascular and respiratory complications as the most common complications. The incidence rates of deep venous thrombosis (DVT) and local complications were 2.4% and 1.0%, respectively. The 30-day postoperative mortality rate was 0.1% (3/2254). Multivariate logistic regression analyses identified body mass index (BMI) of ≥30.0 kg/m2 (odds ratio [OR]: 1.47) and age ≥80 years (OR: 1.87) as significant risk factors for postoperative systemic complications. A BMI of ≥30.0 kg/m2 was a significant risk factor for DVT (OR: 2.86) and other complications (OR: 2.11). The comorbidity of diabetes was a risk factor for postoperative mortality (OR: 19.20). CONCLUSIONS:This study highlighted complications with cardiac and respiratory origins as the most common complications within 30 postoperative days following primary TKA. The BMI of ≥30.0 kg/m2 and age ≥80 years were significant risk factors for 30-day postoperative complications.

journal_name

Chin Med J (Engl)

journal_title

Chinese medical journal

authors

Feng B,Lin J,Jin J,Qian WW,Wang W,Weng XS

doi

10.4103/0366-6999.213071

subject

Has Abstract

pub_date

2017-11-05 00:00:00

pages

2551-2556

issue

eissn

0366-6999

issn

2542-5641

pii

213071

journal_volume

130

pub_type

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Thirty-day Postoperative Complications following Primary Total Knee Arthroplasty: A Retrospective Study of Incidence and Risk Factors at a Single Center in China.