Artikel
Short-term outcomes of total hip arthroplasty: osteoarthritis versus osteonecrosis
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Veröffentlicht: | 23. Oktober 2017 |
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Gliederung
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Objectives: Data comparing short-term outcomes of total hip arthroplasty (THA) between osteoarthritis (OA) and osteonecrosis (ON) patients are lacking. The purpose of this study was to compare: (1) lengths-of-stay, (2) inpatient medical and surgical complications, (3) 90-day unplanned readmissions, and (4) 90-day revisions in patients who had OA or ON as indication for THA.
Methods: All patients who underwent primary THA for osteoarthritis or osteonecrosis between January 1, 2009 and September 30, 2012 in the New York Statewide Planning and Research Cooperative System were identified. Propensity scores were used to match the OA to the ON patient groups. Logistic regression models calculated the odds ratio (OR) and 95% confidence intervals (95% CI) of short-term outcomes for ON compared to OA patients.
Results and Conclusion: Mean lengths-of-stay were significantly longer for ON versus OA patients (4.3 vs. 3.7 days). Perioperative medical and surgical complications were significantly more common for ON as compared to OA patients (Medical: 6 vs. 3%; Surgical: 2 vs. 1%). Ninety-day unplanned readmissions were significantly more common for ON versus OA patients (9.0% vs. 5.8%). Ninety-day revisions were significantly more common for patients with ON versus OA (1.4% vs. 0.7%). All of the above findings remained significant after regression modeling. The most common reason for 90-day revision was dislocation (30.6%) in ON patients and periprosthetic fracture (26.4%) in OA patients.
Total hip arthroplasty for ON patients is associated with increased lengths-of-stay, perioperative medical and surgical complications, 90-day readmission, and revision within 90-days as compared to OA patients.