Surface electromyography-verified muscular damage associated with the open dorsal approach to the lumbar spine

Kramer, Michael D.; Katzmaier, P.; Eiselé, R.; Ebert, Volker; Kinzl, L.; Hartwig, E.

doi:10.1007/s005860100294

Cited by 49 publications

(27 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, traditional open approach can lead to persisting sequelae, such as muscular denervation, atrophy, and pain, mainly owing to extensive paraspinal muscles stripping [6,7].…”

Section: Introductionmentioning

confidence: 99%

Effect of the percutaneous pedicle screw fixation at the fractured vertebra on the treatment of thoracolumbar fractures

Zhong

Ren

et al. 2016

International Orthopaedics (SICOT)

View full text Add to dashboard Cite

show abstract

“…However, traditional open approach can lead to persisting sequelae, such as muscular denervation, atrophy, and pain, mainly owing to extensive paraspinal muscles stripping [6,7].…”

Section: Introductionmentioning

confidence: 99%

Effect of the percutaneous pedicle screw fixation at the fractured vertebra on the treatment of thoracolumbar fractures

Zhong

Ren

et al. 2016

International Orthopaedics (SICOT)

View full text Add to dashboard Cite

show abstract

“…It has also been shown, however, that the open approach and instrumentation possibly adds relevant damage to the dorsal musculature and as a consequence continuous impairments can remain [19,32]. The development of minimally invasive techniques for various fractures of the whole skeleton has also been realized for the operative treatment of spinal fractures.…”

Section: Introductionmentioning

confidence: 99%

Comparison of open versus percutaneous pedicle screw insertion in a sheep model

et al. 2008

View full text Add to dashboard Cite

Minimally invasive surgery has become more and more important for the treatment of traumatic spine fractures. Besides, some clinical studies, objective data regarding the possible lower damage to the surrounding tissue of the spine is still missing. Here we report a sheep model where we compared a percutaneous versus an open approach for dorsal instrumentation with pedicle screws to the spine. Twelve skeletally mature sheep underwent bilateral pedicle screw fixation at the L4-L6 level. Fortyeight pedicle screws were bilaterally inserted into the pedicles and connected with rods using either an open dorsal standard or a percutaneous approach. Operation time, blood flow, compartment pressure, radiation time, loss of blood, laboratory findings and EMG were evaluated to objectify possible advantages for the percutaneous operation technique. Loss of blood and the distribution of CK-MM as a marker for muscle damage were significantly lower in the percutaneous group. However, radiation time was significantly longer in the percutaneous group. Other parameters like compartment pressure, blood flow and also measurement of the EMG at different time points did not reveal significant differences. Based on the results we found in the present study, percutaneous screw insertion can bring moderate advantages but it should be noted that essential functional deficits to the muscle could not be detected.

show abstract

“…Twelve patients were investigated: eight women and four men; mean age 67 (range 52-79) years; mean body height 176 (163-184) cm; and mean body mass index 26 (22)(23)(24)(25)(26)(27)(28) kg/m2. The patients were referred by General practitioners due to confirmed symptomatic DLSS on Magnetic Resonance Imaging (MRI).…”

Section: Patient Demographicsmentioning

confidence: 99%

A model for evaluation of the electric activity and oxygenation in the erector spinae muscle during isometric loading adapted for spine patients

Ekström

Zhang

Abrahamson

et al. 2020

Preprint

View full text Add to dashboard Cite

Background: Simultaneous measurement of electromyography (EMG) and local muscle oxygenation is proposed in an isometric loading model adjusted for patients that have undergone spinal surgery. Methods: Twelve patients with degenerative lumbar spinal stenosis (DLSS) were included. They were subjected to a test protocol before and after surgery. The protocol consisted of two parts, a dynamic and an isometric Ito loading with a time frame of 60 seconds and accompanying rest of 120 seconds. The Ito test was repeated three times. EMG was measured bilaterally at the L4 level and L2 and was recorded using surface electrodes and collected (Biopac Systems Inc). EMG signal was expressed as RMS and median frequency (MF). Muscle tissue oxygen saturation (MrSO 2 ) was monitored using a Near-infrared spectroscopy (NIRS) device ( INVOS ® 5100C Oxymeter). Two NIRS sensors were positioned bilaterally at the L4 level. The intensity of the leg and back pain and perceived exertion before, during and after the test was evaluated with a Visual Analogue Scale (VAS) and Borg RPE-scale, respectively. Results: All patients were able to perform and complete the test protocol pre- and postoperatively. A consistency of lower median and range values was noted in the sensors of EMG1 (15.3 µV, range 4.5-30.7 µV) and EMG2 (13.6 µV, range 4.0 -46.5 µV) that were positioned lateral to NIRS sensors at L4 compared with EMG3 (18.9 µV, range 6.5 -50.0 µV) and EMG4 (20.4 µV, range 7.5 -49.0 µV) at L2. Right and left side of the erector spinae exhibited a similar electrical activity behaviour over time during Ito test (60s). Regional MrSO 2 decreased over time during loading and returned to the baseline level during recovery on both left and right side. Both low back and leg pain was significantly reduced postoperatively. Conclusion: Simultaneous measurement of surface EMG and NIRS seems to be a promising tool for objective assessment of paraspinal muscle function in terms of muscular activity and local muscle oxygenation changes in response to isometric trunk extension in patients that have undergone laminectomy for spinal stenosis. Keywords: Spinal stenosis, EMG, NIRS, paraspinal muscle, muscle oxygenation, muscle activity, laminectomy.

show abstract

Surface electromyography-verified muscular damage associated with the open dorsal approach to the lumbar spine

Cited by 49 publications

References 20 publications

Effect of the percutaneous pedicle screw fixation at the fractured vertebra on the treatment of thoracolumbar fractures

Effect of the percutaneous pedicle screw fixation at the fractured vertebra on the treatment of thoracolumbar fractures

Comparison of open versus percutaneous pedicle screw insertion in a sheep model

A model for evaluation of the electric activity and oxygenation in the erector spinae muscle during isometric loading adapted for spine patients

Contact Info

Product

Resources

About