» Articles » PMID: 17350738

Intra-articular Anesthesia and Knee Muscle Response

Overview
Date 2007 Mar 14
PMID 17350738
Citations 1
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Many receptors located within the intra-articular knee structures contribute to the neuromuscular responses of the knee. The purpose was to compare the automatic postural response induced by a perturbation at the foot before and after an intra-articular injection of a local anesthetic (bupivicaine), after a saline (sham) injection, and after no intra-articular injection (control) in the knee.

Methods: Muscle onset latencies and automatic response magnitudes for the vastus medialis, vastus lateralis, biceps femoris, medial hamstrings, tibialis anterior, and gastrocnemius were measured using electromyography (EMG) when anteriorly directed perturbations were applied to the feet of 30 subjects. All subjects then received a lidocaine skin injection followed by: an intra-articular bupivicaine injection (treatment group); an intra-articular saline injection (sham group); or no injection (control group), depending on their randomized group assignment. The perturbation tests were then repeated.

Findings: Muscle onset latencies and automatic response magnitudes did not change as a result of the intra-articular injections. Latencies were significantly greater for the vastus medialis and vastus lateralis when compared to the medial hamstrings, biceps femoris and tibialis anterior (P<0.001). Automatic response magnitudes for the tibialis anterior were significantly greater than those of the hamstrings, which were greater than those of the quadriceps (P<0.001).

Interpretation: There were no differences in muscle response when anteriorly directed perturbations were applied to the foot with or without an injection of local anesthetic in the knee. Intra-articular receptors were either unaffected by the anesthetic or the extra-articular receptors or receptors of the other joints were able to compensate for their loss.

Citing Articles

Inhibition of knee joint sensory afferents alters covariation across strides between quadriceps muscles during locomotion.

Alessandro C, Prashara A, Tentler D, Tresch M J Appl Physiol (1985). 2023; 134(4):957-968.

PMID: 36759157 PMC: 10069963. DOI: 10.1152/japplphysiol.00591.2022.

References
1.
Williams G, Barrance P, Snyder-Mackler L, Axe M, Buchanan T . Specificity of muscle action after anterior cruciate ligament injury. J Orthop Res. 2003; 21(6):1131-7. DOI: 10.1016/S0736-0266(03)00106-2. View

2.
Shultz S, Perrin D, Adams M, Arnold B, Gansneder B, Granata K . Neuromuscular Response Characteristics in Men and Women After Knee Perturbation in a Single-Leg, Weight-Bearing Stance. J Athl Train. 2003; 36(1):37-43. PMC: 155400. View

3.
Hodges P, Bui B . A comparison of computer-based methods for the determination of onset of muscle contraction using electromyography. Electroencephalogr Clin Neurophysiol. 1996; 101(6):511-9. DOI: 10.1016/s0013-4694(96)95190-5. View

4.
Hopkins J, Ingersoll C, Krause B, Edwards J, Cordova M . Effect of knee joint effusion on quadriceps and soleus motoneuron pool excitability. Med Sci Sports Exerc. 2001; 33(1):123-6. DOI: 10.1097/00005768-200101000-00019. View

5.
Buchanan T, Kim A, Lloyd D . Selective muscle activation following rapid varus/valgus perturbations at the knee. Med Sci Sports Exerc. 1996; 28(7):870-6. DOI: 10.1097/00005768-199607000-00014. View