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Knee Arthroscopy for Pain Control
Anterolateral Geniculate Nerve Block and Portal Anesthesia in Knee Arthroscopy for Pain Control: A Randomized Control Trial
2 other identifiers
interventional
N/A
0 countries
N/A
Brief Summary
This study aims to determine the effectiveness of an anterolateral genicular nerve block and portal anesthesia in controlling pain in the perioperative period after knee arthroscopy. Opioid consumption, the use of non-opioid medications, complication rate, and sleep quality will also be measured.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
Started Dec 2025
Shorter than P25 for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 11, 2024
CompletedFirst Posted
Study publicly available on registry
November 22, 2024
CompletedStudy Start
First participant enrolled
December 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
October 1, 2026
January 9, 2026
January 1, 2026
8 months
November 11, 2024
January 7, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Postoperative Pain Management
Collected variables will include average and worst pain (0-10 scale, higher values representing increased pain), dose frequency of prescribed opioid analgesics, consumption of prescribed nonopioid analgesics, the longest period of uninterrupted sleep (in hours; only obtained at 12 and 24 hours and 1 week), and the subjective quality of sleep (0-10 scale, higher values representing better sleep), and overall satisfaction with pain control (five-point Likert scale, higher values representing increased satisfaction). A Visual Analog Score will be used in the evaluation of pain.
2, 4, 6, 12, 24, and 48 hours and 1 week post-op
Study Arms (3)
No Intervention
NO INTERVENTIONPatients will receive no intervention
Nerve Block
ACTIVE COMPARATORPatients in the anterolateral geniculate nerve block group will receive 20 cc of 0.25% bupivacaine with epinephrine distributed evenly between two injection sites by an 18G or 21G long needle. After completion of knee arthroscopy, the first injection is targeted at 2 fingerbreadths superior to the superolateral aspect of the patella. The needle is inserted down to the femur, pulled back slightly, and the surrounding area is infiltrated with 10 cc of anesthetic. The second injection is targeted approximately 2 to 3 fingerbreadths laterally to the first injection and 2 to 3 fingerbreadths proximal to the lateral epicondyle in line with the lateral femur. Once again, the needle is inserted down until bone is encountered and then slightly retracted 1 to 2 mm before infiltration with the remaining 10 cc of anesthetic.
Portal Anesthesia
ACTIVE COMPARATORPatients in the portal anesthesia group will also receive 20 cc of 0.25% bupivacaine with epinephrine distributed evenly between portal sites. After completion of knee arthroscopy, portal tracts are closed and the knee is ensured to be evacuated of residual fluid. An 18G or 21G long needle is then used to infiltrate each portal tract where the anesthetic will be delivered.
Interventions
Eligibility Criteria
You may qualify if:
- skeletally mature patients with indications for knee arthroscopy
You may not qualify if:
- include patients with previous knee surgery on the operative side
- opioid use within six weeks before surgery that is deemed to be chronic or excessive
- gabapentin use within six weeks before surgery
- diagnosis of chronic pain, fibromyalgia, or other somatosensory disorder(s)
- history of radicular pain or neuropathy in the operative limb
- patients with cancer
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (7)
Townshend D, Emmerson K, Jones S, Partington P, Muller S. Intra-articular injection versus portal infiltration of 0.5% bupivacaine following arthroscopy of the knee: a prospective, randomised double-blinded trial. J Bone Joint Surg Br. 2009 May;91(5):601-3. doi: 10.1302/0301-620X.91B5.21932.
PMID: 19407292BACKGROUNDGhodki PS, Shalu PS, Sardesai SP. Ultrasound-guided adductor canal block versus femoral nerve block for arthroscopic anterior cruciate ligament repair under general anesthesia. J Anaesthesiol Clin Pharmacol. 2018 Apr-Jun;34(2):242-246. doi: 10.4103/joacp.JOACP_172_17.
PMID: 30104837BACKGROUNDHowell R, Hill B, Hoffman C, Treacy E, Mulcahey MK. Peripheral Nerve Blocks for Surgery About the Knee. JBJS Rev. 2016 Dec 6;4(12):e1. doi: 10.2106/JBJS.RVW.16.00003.
PMID: 28060787BACKGROUNDTyler TF, McHugh MP, Gleim GW, Nicholas SJ. The effect of immediate weightbearing after anterior cruciate ligament reconstruction. Clin Orthop Relat Res. 1998 Dec;(357):141-8. doi: 10.1097/00003086-199812000-00019.
PMID: 9917711BACKGROUNDChunduri A, Aggarwal AK. Multimodal Pain Management in Orthopedic Surgery. J Clin Med. 2022 Oct 28;11(21):6386. doi: 10.3390/jcm11216386.
PMID: 36362617BACKGROUNDPaul RW, Szukics PF, Brutico J, Tjoumakaris FP, Freedman KB. Postoperative Multimodal Pain Management and Opioid Consumption in Arthroscopy Clinical Trials: A Systematic Review. Arthrosc Sports Med Rehabil. 2021 Dec 17;4(2):e721-e746. doi: 10.1016/j.asmr.2021.09.011. eCollection 2022 Apr.
PMID: 35494281BACKGROUNDMeissner W, Mescha S, Rothaug J, Zwacka S, Goettermann A, Ulrich K, Schleppers A. Quality improvement in postoperative pain management: results from the QUIPS project. Dtsch Arztebl Int. 2008 Dec;105(50):865-70. doi: 10.3238/arztebl.2008.0865. Epub 2008 Dec 12.
PMID: 19561807BACKGROUND
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor
Study Record Dates
First Submitted
November 11, 2024
First Posted
November 22, 2024
Study Start
December 1, 2025
Primary Completion (Estimated)
August 1, 2026
Study Completion (Estimated)
October 1, 2026
Last Updated
January 9, 2026
Record last verified: 2026-01
Data Sharing
- IPD Sharing
- Will not share