The purpose of this study is to determine if there is any significant difference between using a short-term ON-Q nerve block (which is applied prior to surgery and maintained in place until the medication in the initial balls have been fully used, usually 2-4 days) in comparison to a long-term ON-Q nerve block (which is applied prior to surgery and maintained in place up to seven days after surgery). This study will analyze patient reported levels of pain, range of motion, and narcotic use, as well as investigate whether blood loss, blood thinners, and hemoglobin/hematocrit blood levels influence patient pain levels. This study will compare patient-reported pain, range of motion and narcotic use in total knee arthroplasty patients who receive the short-term and long-term combination nerve block (saphenous and posterior of the adductor canal and wide-field posterior knee.
Age range
18 Years
Sex
ALL
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Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Change from Baseline Day of Surgery Pain Scores at 6 Weeks.
Timeframe: This will be collected from day of surgery to 6-weeks postoperative
Opioid and Analgesic Use
Timeframe: This will be collected daily from day of surgery through day 7 post-operative.
Number of Participants Who Experience Common Opioid and Analgesic Side Effects
Timeframe: This will be collected daily from day of surgery through day 7 post-operative.
Patient Range of Motion (degrees)
Timeframe: This will be completed at all inpatient physical therapy sessions on day 1 and 2 post-operative and follow-up office visits at 2 and 6 weeks post-operative.