Factors associated with constipation after total hip arthroplasty and nursing countermeasures

The aim was to investigate the independent risk factors for constipation after total hip arthroplasty, according to which a nomogram prediction model was established to provide a basis for the prevention of postoperative constipation. The data of total hip replacement patients in our hospital were collected from January 2022 to December 2023, and the independent risk factors for postoperative constipation after total hip arthroplasty were determined by using unifactorial and multifactorial logistic regression analysis, and the corresponding nomogram was established. The receiver operating characteristic curves were plotted and the area under the curve was calculated, and the calibration curves and decision curves were plotted to evaluate the model performance. A total of 436 total hip replacement patients were enrolled in the study, and 314 post-total hip replacement patients developed constipation, with an incidence rate of 72.02%. This incidence rate was based on the correct number of constipation cases (314 out of 436), as verified after data revalidation. After univariate and multivariate logistic regression analyses, a total of 5 variables were identified as independent risk factors for constipation after total hip arthroplasty, namely age > 70 years (odds ratio [OR], 3.651; 95% confidence interval [CI], 1.678-5.843), irregular diet (OR, 3.074; 95% CI, 1.539-4.125), anxiety (OR, 3.123; 95% CI, 1.573-4.368), bedridden for >48 hours (OR, 5.244; 95% CI, 1.625-6.376), and history of constipation (OR, 6.190; 95% CI, 1.872-7.855). The nomogram of constipation after total hip arthroplasty constructed in this study has good predictive accuracy and helps physicians to intervene in advance in patients at high-risk of constipation after total hip arthroplasty.