Clinical trial NCT05715437: Adductor Canal Block in Total Knee Arthroplasty
Official title: Analgesic Efficacy of Adductor Canal Block With Bupivacaine Versus Bupivacaine and Ketamine in Total Knee Arthroplasty.
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: PHASE4
Conditions: Analgesia
Lead sponsor: Assiut University
Sponsor class: OTHER
First posted: 2023-02-08
Enrollment: 60
Sex: ALL
Minimum age (years): 18
Maximum age (years): 80
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: FACTORIAL
Primary purpose: OTHER

Brief summary: The purpose of this study is to evaluate whether adding ketamine to bupivacaine is superior to bupivacaine alone in terms of providing better pain control for 48 hours postoperatively after TKA.

Detailed description: Optimal pain relief is essential for functional recovery after total knee arthroplasty (TKA). Addition of femoral nerve block (FNB) to an analgesic regimen provides superior pain control and shortens hospital stay, in comparison with epidural or intravenous patient-controlled analgesia (PCA) alone. However, prolonged motor blockade from FNB is associated with a small (2%) but clinically important risk of fall. With FNB there will always be a compromise between the goals of adequate pain relief and muscle strength. An ideal nerve block would provide effective analgesia, minimize opioid use and side effects, and hasten mobilization by preserving motor strength. "Fast-track" total joint replacements are gaining popularity. Motor preservation with adequate analgesia has become the optimal postoperative pain goal in orthopedic surgeries to enable earlier physical therapy, faster recovery, and shorter hospital stays.Nerve blocks such as femoral nerve block, adductor canal block, and epidural block have been more prevalent in TKA postoperative analgesia due to their effectiveness, easy manipulation, and low rate of complications. Local anesthetics such as ropivacaine or bupivacaine have been commonly used in nerve blocks. However, the postoperative analgesic effects and duration of local anesthetics are not good enough, and sometimes have led to delayed ambulation and an increased risk of falling after TKA. To overcome these shortcomings and further improve the analgesic effect, additional endeavors should be devoted to exploring new and effective agents for nerve block.With the advent of ultrasonography, the adductor canal can be easily visualized at the mid-thigh level, allowing performance of adductor canal block (ACB) with a high success rate. In recent years, ACB has been successfully used for postoperative pain control after knee surgery. Anatomical study of the adductor canal demonstrated that the adductor canal may serve as a conduit for more than just the saphenous nerve, possibly including the vastus medialis nerve, medial femoral cutaneous nerve, articular branches from the obturator nerve, as well as the medial retinacular nerve. Thus, the sensory changes are not limited to the distribution of the saphenous nerve, but includes the medial and anterior aspects of the knee from the superior pole of the patella to the proximal tibia.

Eligibility criteria: Inclusion Criteria:

1. The subject is scheduled for elective primary unilateral TKA.
2. The subject is ≥ 18 years and ≤ 80 years.
3. Both sexes.
4. The subject's primary anesthesia care team has planned for a spinal anesthesia.
5. The patient agrees to receive an adductor canal block.
6. ASA class 1-3.

Exclusion Criteria:

1. Subject is \< 18 years of age or \>80 years of age.
2. Subject is known or believed to be pregnant.
3. Significant pre-existing neuropathy on the operative limb.
4. Significant renal, cardiac or hepatic disease.
5. ASA class 4-5.

Primary outcomes:
measure: Visual analogue scale (VAS)
timeFrame: 48 hours
Secondary outcomes:
measure: analgesia
timeFrame: 48 hours
measure: Analysis include quadriceps strength
timeFrame: 48 hours
measure: Satisfaction of the patients
timeFrame: 48 hours
measure: Reporting side effects of drugs given
timeFrame: 48 hours
Other outcomes:
Locations:
Study officials:
References:
citation: Capdevila X, Barthelet Y, Biboulet P, Ryckwaert Y, Rubenovitch J, d'Athis F. Effects of perioperative analgesic technique on the surgical outcome and duration of rehabilitation after major knee surgery. Anesthesiology. 1999 Jul;91(1):8-15. doi: 10.1097/00000542-199907000-00006.
citation: Allen HW, Liu SS, Ware PD, Nairn CS, Owens BD. Peripheral nerve blocks improve analgesia after total knee replacement surgery. Anesth Analg. 1998 Jul;87(1):93-7. doi: 10.1097/00000539-199807000-00020.
citation: Hadzic A, Houle TT, Capdevila X, Ilfeld BM. Femoral nerve block for analgesia in patients having knee arthroplasty. Anesthesiology. 2010 Nov;113(5):1014-5. doi: 10.1097/ALN.0b013e3181f4b43d. No abstract available.
citation: Wang H, Boctor B, Verner J. The effect of single-injection femoral nerve block on rehabilitation and length of hospital stay after total knee replacement. Reg Anesth Pain Med. 2002 Mar-Apr;27(2):139-44. doi: 10.1053/rapm.2002.29253.
citation: Singelyn FJ, Deyaert M, Joris D, Pendeville E, Gouverneur JM. Effects of intravenous patient-controlled analgesia with morphine, continuous epidural analgesia, and continuous three-in-one block on postoperative pain and knee rehabilitation after unilateral total knee arthroplasty. Anesth Analg. 1998 Jul;87(1):88-92. doi: 10.1097/00000539-199807000-00019.
citation: YaDeau JT, Cahill JB, Zawadsky MW, Sharrock NE, Bottner F, Morelli CM, Kahn RL, Sculco TP. The effects of femoral nerve blockade in conjunction with epidural analgesia after total knee arthroplasty. Anesth Analg. 2005 Sep;101(3):891-895. doi: 10.1213/01.ANE.0000159150.79908.21.