62 Clinical Trials for Various Conditions
A randomized, single-blind, single-center study measuring the effects of adductor canal block combined with IPACK infiltration compared to adductor canal block alone on post-operative pain and opioid consumption in patients undergoing high tibial osteotomy (HTO)/distal femoral osteotomy (DFO)/tibial tubercle osteotomy (TTO).
A randomized, single-blind, single-center study measuring the effects of adductor canal block combined with IPACK infiltration compared to adductor canal block alone on post-operative pain and opioid consumption in patients undergoing ACL reconstruction with Bone Patellar Tendon Bone Autograft
The purpose of this study is to compare the effects of a femoral nerve block vs. an adductor canal block on pain and quadriceps muscle strength for knee arthroscopy surgery.
Liposomal bupivacaine injectable suspension (Exparel), manufactured by Pacira Pharmaceuticals, is an FDA-approved, long-lasting nonopioid analgesic that is indicated for single-dose infiltration in adults to produce postsurgical local analgesia. Exparel's extended bioavailability allows for 48 hours of pain control. Periarticular infiltration of liposomal bupivacaine has been safely and effectively used for total knee arthroplasty as an alternative to FNBs, avoiding transient quadriceps weakness and potential in-hospital falls. Recently Exparel has been FDA approved for interscalene brachial plexus nerve block to produce postsurgical regional analgesia for upper extremity/shoulder procedures. It is not yet approved for peripheral nerve blocks of the lower extremity. No study to date, to our knowledge, has evaluated the efficacy of single-dose adductor canal blockade with Exparel compared to femoral nerve catheter with bupivacaine. We pose that Exparel used for an adductor canal block can offer the benefit of a single-dose injection with extended pain control without the burden of an indwelling catheter and to avoid adverse events of femoral nerve blockade related to quadriceps weakness and dysesthesias. The purpose of this study is to determine whether adductor canal blockade with liposomal bupivacaine (Exparel) is a safe and effective alternative to femoral nerve catheters for post-operative pain control for patients undergoing ACL reconstruction.
The purpose of the study is to compare magnitude of postsurgical analgesic effect in different groups following a single dose of study drug when administered via adductor canal block in subjects undergoing primary unilateral total knee arthroplasty.
The purpose of this study is to compare the use of magnesium and bupivacaine to buprenorphine and bupivacaine in post-operative adductor canal blocks (ACB); the study will determine if one combination can result in decreased opioid consumption and improved pain management for patients after same-day discharge total knee arthroplasty (TKA) . The investigators will assess whether the addition of magnesium to bupivacaine will decrease visual analog scale (VAS) pain scores, decrease post-operative total opioid consumption (oral morphine equivalents), decrease the incidence of post-operative nausea and vomiting (PONV), and improve patient satisfaction in comparison to when buprenorphine is added to bupivacaine.
The purpose of this study is to determine whether the addition of magnesium to bupivacaine for the post-operative adductor canal blocks (ACB) can decrease opioid consumption and improve pain management for patients after same-day discharge total knee arthroplasty (TKA). The investigators will assess whether the addition of magnesium will decrease visual analog scale (VAS) pain scores, decrease post-operative total opioid consumption (oral morphine equivalents), decrease the incidence of post-operative nausea and vomiting (PONV), and improve patient satisfaction in comparison to when magnesium is not administered.
This study is a randomized study that compares two commonly used post-operative pain reducing techniques by measuring the level of pain and use of pain medication after knee surgery.
Exparel has been shown to have better pain control compared to previously used infiltration agents, including bupivacaine, while having a minor side effect profile. The purpose of this study is to explore the effectiveness of Exparel (liposomal bupivacaine) in Adductor Canal Blocks for peri-operative pain control following a total knee arthroplasty (TKA) procedure.
The investigators are evaluating the postoperative outcomes in patients undergoing total knee arthroplasty that receive either systemic lidocaine or ultrasound-guided adductor canal block as part of their anesthetic plan.
The investigators aim to investigate whether the addition of a surgeon-administered adductor canal blockade to a multimodal periarticular injection cocktail provides additional pain relief for patients undergoing total knee arthroplasty. This study will help identify the effectiveness of surgeon-administered adductor canal blockade in perioperative pain control for patients undergoing total knee arthroplasty
The aim of the current project is to address a gap in the existing literature related to optimal placement of local anesthetic for an adductor canal (AC) block. The current study seeks to examine whether placement of the local anesthetic in the AC for knee surgery is more effective at reducing post-operative pain following arthroscopic knee surgery compared to a control. Specifically, if the anesthetic is more beneficial than the control group, the research will determine which location is optimal by comparing groups that receive anesthetic in the midpoint of the thigh, the proximal end of the thigh, or the distal end of the thigh.
The investigators will be comparing the efficacy of two different techniques for performing an adductor canal block to the saphenous nerve as a part of the multimodal pain control regimen for total knee arthroplasty. The investigators will be comparing a "low adductor canal block" in which the surgeon administers local anesthetic to the distal aspect of the nerve from the operative site to a "high adductor canal block" in which the anesthesiologist administers the local anesthetic more proximally along the thigh using ultrasound guidance. The investigators will power the study for non-inferiority to compare the newer "low" block to the more commonly performed and more widely studied "high" block.
This is a randomized prospective study of 60 patients undergoing total knee arthroplasty evaluating the clinical outcomes of liposomal bupivacaine periarticular injections (PAI) when compared to single shot adductor canal block using bupivacaine HCl.
This study will examine the potential differences between femoral nerve blockade (FNB) and adductor canal blockade (ACB) for pain control and quadriceps muscle activation for patients following anterior cruciate ligament (ACL) reconstruction.
This is a prospective, randomized, blinded study with a parallel design and an allocation ratio of 1:1 for the treatment groups. The investigators seek to determine if femoral nerve block (FNB) improves the quality of recovery and improve postoperative analgesia compared with adductor canal block (ACBs) for patients undergoing revision total knee arthroplasty.
Peripheral nerve blocks catheters of the femoral nerve have long been used for perioperative analgesia in total knee arthroplasty (TKA). These blocks provide effective analgesia and patient satisfaction for surgical pain relief. However, one of the main drawbacks to the femoral nerve block (FNB) is a denser motor block of the quadriceps muscle that can delay aggressive physical therapy and subsequent recovery from surgery. (1) Recently, there has been increasing interest in performing adductor canal blocks (ACB) with the aim of less motor blockade while providing commensurate analgesia compared to the FNB. (1,2) Current investigative reports have provided only preliminary data, and there is potential to change the standard of care for TKA as more data mounts in favor of ACBs. The goal of this study is to verify the analgesic equivalence of the two blocks, compare patient satisfaction, surgeon satisfaction, and physical therapy grading between the two blocks. Potentially, this would change the standard of care for TKA patients at this institution.
A comparison of two pain control methods - the combination of Adductor Canal Block (ACB)/Periarticular Injection (PAI)/Infiltration of the interspace between the popliteal artery and the capsule of the posterior knee (IPACK) versus the Periarticular Injection (PAI) - in patients undergoing total knee arthroplasty. Primary outcome is NRS pain scores with ambulation on postoperative day one (24 hours post-block administration).
Total knee arthroplasty (knee replacement) is a common orthopedic procedure for osteoarthritis. This procedure is performed either under general anesthesia or spinal anesthesia; after the procedure in the recovery room, these patients undergo adductor canal block, which is a nerve block to provide 8-14 hours of postoperative pain control. For this nerve block, 15-20 ml of local anesthetic is combined with adjuvant medications to improve the quality of pain control as well as the duration of pain relief. The primary local anesthetic used for adductor canal block is ropivacaine, and the commonly used adjuvants are epinephrine and dexamethasone. There is conflicting data available in the literature regarding efficacy of addition of clonidine to the local anesthetic injection in peripheral nerve blocks, and there is no data assessing the efficacy of this medication in adductor canal blocks. Once the consent process is completed, patients are enrolled in two arms. Upon conclusion of surgery, a sealed and coded envelope with either clonidine or the placebo syringe will be given to the acute pain service staff performing the nerve block. This will be mixed with local anesthetic solution and injected in the adductor canal under ultrasound guidance. The primary outcome measure will be the duration of analgesia, which will be assessed as the time interval between placement of adductor canal block to the first request of opioid analgesic by patients (which will be obtained from hospital electronic medical records). Secondary outcomes will include: 1. Duration of sensory block, which will be assessed as the time interval between injection of local anesthetic and report of postoperative pain of 3 or more on an 11 point scale (0=no pain; 10= worst pain imaginable) by the patient (this will be assessed every 4 hours). 2. Duration of motor block, which will be assessed as the time interval between the onset of motor block to complete recovery of motor block by assessing straight leg raise strength (this will be assessed every 4 hours). 3. Cumulative 24 and 48 hour opioid analgesic use. 4. Post-block pain scores, evaluated by an 11 point pain score (0-10), which will be done every 15 minutes for the first hour after surgery and every 4 hours thereafter for 24 hours.
There has been dispute about the location at which the adductor canal block should be performed (3-6). Two Common approaches have been used for ultrasound guided adductor canal blocks with the 'point of entry' being: 1. Point A: midway point between the ASIS and base of patella 2. Point B: Point which is 2-3 cm proximal to the site where the femoral artery becomes the popliteal artery as it traverses away from the sartorius muscle towards the femur at the adductor hiatus (2) We want to determine ultrasound anatomy in healthy volunteers by: 1. Measuring the distance between Point A and Point B 2. Studying the ultrasound anatomy at Point A and B - Determine their location with respect to the adductor canal and femoral triangle. This will allow us to determine which is the best site for performing an adductor canal block
The purpose of this study is to determine if there is a difference in patient outcomes with general anesthesia versus spinal anesthesia when given in addition to popliteal and adductor canal nerve blocks for foot and ankle surgery. Popliteal and adductor canal nerve blocks are injections of local anesthetic agents near nerves in the back and front of the knee going to the foot and ankle that provide numbness during and after surgery. These peripheral nerve blocks offer good pain control and reduce the need for opioids (opioids are pain medications such as morphine, Dilaudid, and oxycodone). General anesthesia involves the flow of oxygen and anesthesia gas through a tube which, along with additional intravenous medications, causes unconsciousness and unawareness of sensations during surgery. Spinal anesthesia involves an injection of local anesthetic in the lower back, which causes numbness below the waist. In addition to spinal anesthesia, a sedative is typically given intravenously to cause relaxation and sleepiness throughout surgery. General, spinal, and nerve block anesthesia are all routinely used for surgery at the Hospital for Special Surgery. General or spinal anesthesia is typically used in addition to peripheral nerve blocks during foot and ankle surgery to 1) allow the surgeons to use a thigh tourniquet to reduce bleeding, 2) provide anesthesia earlier, and 3) prevent unwanted movement. However, it is unclear whether general or spinal anesthesia provides better patient outcomes when given with peripheral nerve blocks. Some reports show that on its own, spinal anesthesia has advantages over general anesthesia in terms of side effects such as nausea and pain. However, these advantages may also be gained from combining peripheral nerve blocks with general anesthesia. Spinal anesthesia can be associated with headache and backache, although headache and backache can also happen after operations performed with general anesthesia. A previous study at the Hospital for Special Surgery showed low rates of nausea among patients who received nerve blocks with spinal anesthesia, and no nausea among patients who received a nerve block with general anesthesia. Therefore, the primary aim of this study is to determine if, as a treatment, either general or spinal anesthesia has advantages over the other treatment in terms of readiness for discharge, side effects, pain and patient satisfaction in an ambulatory foot and ankle population.
Patients undergoing Primary Total Knee Arthroplasty will be randomized to receive either multimodal single injection adductor canal block with sham infusion catheter or continuous infusion of local anesthetic (control) for postoperative analgesia. Primary end point is pain scores at 30 hours post performance of block procedure.
This study is being done to evaluate the outcomes of patients undergoing total knee replacement with two different methods of local pain control:shots of liposomal bupivacaine, a long acting anesthetic, directly into the knee during surgery or anesthetic delivered continuously to the adductor canal to provide long term pain relief. The goal is to try to find a standard protocol that provides the greatest pain relief for patients undergoing total knee replacement.
Early ambulation after knee replacement surgery is made possible in large part by providing safe and effective pain control. Peripheral nerve blocks are increasingly used for postoperative analgesia since they can provide excellent pain relief and minimize the need for opioid analgesics. Ultrasound guided adductor canal block (ACB) was first reported in 2009 by anesthesiologists at the University of Utah. This block is unique in that it spares motor function in the lower extremity. Since 2009, a number of publications have described the successful use of ACB for pain management after total knee arthroplasty (TKA), anterior cruciate ligament (ACL) reconstruction, and other procedures of the knee. As a component of multi-modal analgesia, ACB can provide effective postoperative pain control and facilitate early hospital discharge. Although it is widely utilized, the ACB block can be technically difficult to perform since it requires injection in immediate proximity to the femoral artery and vein. In patients with a large thigh circumference, ultrasound can be challenging since the femoral vessels are deeper and more difficult to visualize. This presents the possibility of vessel trauma and/or intravascular injection of local anesthetic. The investigators have implemented a new technique for performing the ACB. This block is performed using a 20G fenestrated needle. The needle is FDA approved for peripheral nerve block. It has an occluded tip with 8 side ports on alternating sides of the distal 2cm. Injection through the fenestrated needle produces effective distribution of local anesthetic to nerves of the adductor canal without immediate proximity to the femoral artery and vein. The ultrasound landmarks used to perform ACB with the fenestrated needle are readily visible even in patients with very large thigh circumference. In summary, early experience with the US guided ACB block performed with a fenestrated block needle suggests that it is technically easier and potentially safer to perform than blocks performed with a conventional needle. This study should be performed prospectively in order to ensure accurate data comparing the two needles. A retrospective review of blocks performed using a conventional needle would not provide accurate data with respect to the number of attempts, time required to perform the blocks or the resulting sensory changes after performing the nerve block.
The objective of the study is to compare the efficacy of adductor canal blocks versus periarticular bupivacaine injections for pain management in total knee arthroplasty. This randomized clinical trial will compare outcomes between adductor canal blocks, periarticular bupivacaine injections, and periarticular liposomal bupivacaine injections. Results from this study will help determine the most appropriate perioperative pain management strategy for patients undergoing a total knee arthroplasty.
This is a randomized, double blinded, standard of care controlled clinical trial. All adult patients over eighteen desiring total knee arthroplasty will be eligible. The study compares pain control, opioid consumption, and physical exam findings in patients undergoing total knee arthroplasty between patients receiving adductor canal block and those who receiving periarticular injection alone.
The purpose of this study is to compare a single shot block, 24 hours, and 48 hour continuous catheter nerve block done via the adductor canal method in adult patients who have under gone total knee arthroplasty. Visual analogue scores, opioid consumption, time to up and go, ambulation, manual muscle tests, and Tinetti scores up to 72 hours post operatively will be used for comparison.
This study is designed to evaluate pain control of continuous adductor canal blocks placed proximally versus distally within the canal. The investigators hypothesize that there will be similar pain control between both groups.
This is a prospective, randomized, single-blinded human clinical trial that will examine how injection pressure influences the spread of a given volume of injectate in the adductor canal, during adductor canal nerve block.
Total knee arthroplasty (TKA) can be associated with a large amount of postoperative pain. This pain can oftentimes be severe enough to limit participation in physical therapy and ultimately delay discharge resulting in increased cost. Several strategies have been developed in an effort to decrease postoperative pain following TKA while maintaining lower extremity strength and maximizing participation in physical therapy. Recently, adductor canal blockade has gained popularity as it is reported to provide analgesia to the anterior knee without resulting in significant quadriceps muscle weakness. However, few studies have carefully evaluated the impact of volume of injection of local anesthetic into the adductor canal on motor weakness or pain control. The ability to achieve similar pain control with decreased volumes of local anesthetic would allow the surgery team to apply more local anesthetic to posterior knee structures. Decreased volumes of local anesthetic may also be associated with a decreased risk of local anesthetic toxicity. This study aims to carefully evaluate this relationship using a physical therapy evaluation method that relies on both motor strength and pain control. In addition, the investigators hope to carefully evaluate motor strength using a novel method of strength measurement in an effort to further evaluate the impact of volume of injection of local anesthetic into the adductor canal on motor strength.