AI Article Synopsis
- The study aimed to analyze the relationship between common oral osteoarthritis (OA) treatments and various risk factors in relation to knee replacement (KR) using the Osteoarthritis Initiative database.
- In the research, 218 participants who received a KR were compared with 540 controls, and while there was a trend showing higher exposure to certain pain medications among cases, the study concluded that there was no significant link between these treatments and the occurrence of KR.
- The main risk factors identified for higher KR occurrence were disease severity, symptoms, and a body mass index (BMI) of 27 kg/m² or more, particularly among Caucasian participants.
Article Abstract
Background: The aim of this study was to measure the association between exposure to commonly used oral osteoarthritis (OA) therapies and relevant confounding risk factors on the occurrence of knee replacement (KR), using the Osteoarthritis Initiative (OAI) database.
Methods: In this nested case-control design study, participants who had a KR after cohort entry were defined as "cases" and were matched with up to four controls for age, gender, income, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain, Kellgren-Lawrence grade, and duration of follow up. Exposure to oral OA therapies (acetaminophen, non-steroidal anti-inflammatory drugs (NSAIDs), cyclooxygenase-2 (COX-2) inhibitors, narcotics, and glucosamine/chondroitin sulfate) was determined within the 3 years prior to the date of the KR. Conditional regression analyses were performed to estimate the association between KR and exposure to oral OA therapies and other potential confounding risk factors.
Results: A total of 218 participants who underwent a KR (cases) were matched to 540 controls. The median time to KR was 4.3 years among cases. The majority in both groups were Caucasian with mean age of 69 years and 61% were female. Numerically, cases were more exposed to acetaminophen, NSAIDs, and COX-2 inhibitors. Exposure to narcotics and glucosamine/chondroitin sulfate was relatively similar between cases and controls. No significant association was found between the occurrence of KR and exposure to any of the oral OA therapies within the 3 years prior to KR. A significantly higher occurrence of KR was found in Caucasian subjects (OR 1.84; 95% CI, 1.13-2.99; p = 0.015) and subjects with body mass index (BMI) ≥ 27 kg/m (OR 1.65; 95% CI, 1.06-2.58; p = 0.027).
Conclusion: This study provides evidence that the main risk factors leading to KR are disease severity, symptoms and high BMI. Importantly, exposure to oral OA therapies was not associated with the occurrence of KR.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6081796 | PMC |
| http://dx.doi.org/10.1186/s13075-018-1656-2 | DOI Listing |
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