Prathap Jayaram1, David J Kennedy2, Peter Yeh3, Jason Dragoo4. 1. H. Ben Dept. Physical Medicine & Rehabilitation, Dept of Orthopedic Surgery, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX. 2. Department of Physical Medicine and Rehabilitation, Vanderbilt University Medical Center, Nashville, TN. 3. H. Ben Dept. Physical Medicine & Rehabilitation, Baylor College of Medicine, Houston, TX. 4. Department of Orthopedic Surgery, Stanford University Medical Center, Stanford, CA.
Abstract
OBJECTIVE: To review the current literature on the effects of intraarticular local anesthetics on human knee articular cartilage. LITERATURE SURVEY: PubMed; MEDLINE; SCOPUS; PEDro; CINAHL databases (1/1990-06/1/2018) were searched for local anesthetic effects on human knee articular cartilage. METHODOLOGY: Sixteen studies met the inclusion criteria, with outcome measures assessing chondrocyte viability, morphology, and histology. A systematic review was performed using PRISMA guidelines. SYNTHESIS: Seven studies were identified evaluating lidocaine, with five of them demonstrating statistically significant chondrotoxic effects. Fourteen studies examined bupivacaine, with all but one study demonstrating a chondrotoxic effect. Eight studies examined ropivacaine and found a dose-dependent chondrotoxicity starting at 0.75%. Two studies evaluated levobupivacaine showing chondrotoxicity, with one study showing it to be more chondrotoxic than bupivacaine. One study looked at mepivacaine and showed it to have more chondrotoxicity than ropivacaine. When studied the chondrotoxicity was found to be both dose and time dependent. Also, the addition of corticosteroids appeared to worsen the chondrotoxic effects. CONCLUSIONS: Lidocaine, bupivacaine, ropivacaine, levobupivacaine, and mepivacaine were reported to have dose- and time-dependent deleterious effects on chondrocytes that appeared to be made worse by the coadministration of corticosteroids. Ropivacaine at concentrations of 0.5% or less was found to be the least chondrotoxic anesthetic. LEVEL OF EVIDENCE: I.
OBJECTIVE: To review the current literature on the effects of intraarticular local anesthetics on human knee articular cartilage. LITERATURE SURVEY: PubMed; MEDLINE; SCOPUS; PEDro; CINAHL databases (1/1990-06/1/2018) were searched for local anesthetic effects on human knee articular cartilage. METHODOLOGY: Sixteen studies met the inclusion criteria, with outcome measures assessing chondrocyte viability, morphology, and histology. A systematic review was performed using PRISMA guidelines. SYNTHESIS: Seven studies were identified evaluating lidocaine, with five of them demonstrating statistically significant chondrotoxic effects. Fourteen studies examined bupivacaine, with all but one study demonstrating a chondrotoxic effect. Eight studies examined ropivacaine and found a dose-dependent chondrotoxicity starting at 0.75%. Two studies evaluated levobupivacaine showing chondrotoxicity, with one study showing it to be more chondrotoxic than bupivacaine. One study looked at mepivacaine and showed it to have more chondrotoxicity than ropivacaine. When studied the chondrotoxicity was found to be both dose and time dependent. Also, the addition of corticosteroids appeared to worsen the chondrotoxic effects. CONCLUSIONS:Lidocaine, bupivacaine, ropivacaine, levobupivacaine, and mepivacaine were reported to have dose- and time-dependent deleterious effects on chondrocytes that appeared to be made worse by the coadministration of corticosteroids. Ropivacaine at concentrations of 0.5% or less was found to be the least chondrotoxic anesthetic. LEVEL OF EVIDENCE: I.
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