BACKGROUND: The purpose of our study is to examine post-operative opioid use in total hip arthroplasty (THA) and total knee arthroplasty (TKA) patients and describe factors associated with the need for refill prescriptions. METHODS: Using online prescription information, we calculated the number of filled prescriptions, total morphine equivalent dose (MED) and quantity of pills, and date of last opioid prescription (days) for 197 TKA and 186 THA patients. Patients were classified based on refill status. Opioid data were compared between TKA and THA patients. Relationships between comorbidities and refill status were examined. RESULTS: Number of prescriptions (P < .001), total quantity (P < .001) and MED (P < .001), and days on opioids (P < .001) were greater for TKA patients. TKA patients required more refills (P < .001) for a greater quantity of pills (P = .007). The presence of a comorbidity (P = .003) or anxiety/depression (P = .004) were correlated with refills for TKA patients only. A comorbidity increased the risk of refills by 3.1 times, while anxiety/depression had a 2.5 times greater risk of refills. CONCLUSION: Compared to THA patients, TKA patients were twice as likely to require refill opioid prescriptions and were prescribed a greater total MED for a longer period of time post-operatively. Patients undergoing TKA who present with a comorbidity or are currently being treated for anxiety or depression are more likely to require a refill.
BACKGROUND: The purpose of our study is to examine post-operative opioid use in total hip arthroplasty (THA) and total knee arthroplasty (TKA) patients and describe factors associated with the need for refill prescriptions. METHODS: Using online prescription information, we calculated the number of filled prescriptions, total morphine equivalent dose (MED) and quantity of pills, and date of last opioid prescription (days) for 197 TKA and 186 THA patients. Patients were classified based on refill status. Opioid data were compared between TKA and THA patients. Relationships between comorbidities and refill status were examined. RESULTS: Number of prescriptions (P < .001), total quantity (P < .001) and MED (P < .001), and days on opioids (P < .001) were greater for TKA patients. TKA patients required more refills (P < .001) for a greater quantity of pills (P = .007). The presence of a comorbidity (P = .003) or anxiety/depression (P = .004) were correlated with refills for TKA patients only. A comorbidity increased the risk of refills by 3.1 times, while anxiety/depression had a 2.5 times greater risk of refills. CONCLUSION: Compared to THA patients, TKA patients were twice as likely to require refill opioid prescriptions and were prescribed a greater total MED for a longer period of time post-operatively. Patients undergoing TKA who present with a comorbidity or are currently being treated for anxiety or depression are more likely to require a refill.
Authors: Maureen K Dwyer; Christopher M Melnic; Catharine Tumpowsky; Tyler Humphrey; Shayan Hosseinzadeh; Hany S Bedair Journal: J Orthop Date: 2021-12-16
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