Risk factors for ileus after hip and knee arthroplasty

Area of Science:

• Orthopedic Surgery
• Gastroenterology
• Nephrology

Background:

• Postoperative ileus (POI) is a complication following arthroplasty, impacting patient recovery and healthcare costs.
• Existing literature on POI risk factors after arthroplasty is limited, with known factors including hip arthroplasty, male gender, and prior abdominal surgery.
• Identifying specific risk factors is crucial for proactive patient management and reducing POI incidence.

Purpose of the Study:

• To identify and analyze the risk factors associated with postoperative ileus (POI) specifically after hip and knee arthroplasty.
• To expand the understanding of POI etiology beyond previously recognized factors.
• To provide data for improved patient monitoring and preventative strategies.

Main Methods:

• A retrospective review of 2760 patients who underwent primary hip or knee arthroplasty.
• Comprehensive analysis of patient history, operative details, and postoperative course.
• Statistical evaluation using univariate and multivariate analyses to determine significant risk factors.

Main Results:

• The overall incidence of POI was found to be 0.54%.
• Statistically significant risk factors identified for POI include a history of myocardial infarction (p=0.023) and chronic kidney disease (p=0.004).
• Previously known risk factors such as previous abdominal surgery (p<0.001) and hip arthroplasty (p=0.026) were also confirmed; age and gender were not significant predictors.

Conclusions:

• While POI is infrequent after arthroplasty, chronic kidney disease and myocardial infarction history are newly identified risk factors.
• These findings add to the established risk factors of hip arthroplasty and previous abdominal surgery.
• Close monitoring of patients with these identified risk factors is recommended to prevent or manage postoperative ileus effectively.