Comparison of open versus percutaneous pedicle screw insertion in a sheep model.
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Comparison of open versus percutaneous pedicle screw insertion in a sheep model. / Lehmann, Wolfgang; Ushmaev, A; Ruecker, A; Nüchtern, Jakob V.; Großterlinden, Lars Gerhard; Begemann, Philipp; Bäumer, Tobias; Rueger, Johannes Maria; Briem, Daniel.
In: EUR SPINE J, Vol. 17, No. 6, 6, 2008, p. 857-863.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Comparison of open versus percutaneous pedicle screw insertion in a sheep model.
AU - Lehmann, Wolfgang
AU - Ushmaev, A
AU - Ruecker, A
AU - Nüchtern, Jakob V.
AU - Großterlinden, Lars Gerhard
AU - Begemann, Philipp
AU - Bäumer, Tobias
AU - Rueger, Johannes Maria
AU - Briem, Daniel
PY - 2008
Y1 - 2008
N2 - 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. Forty-eight 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.
AB - 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. Forty-eight 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.
M3 - SCORING: Zeitschriftenaufsatz
VL - 17
SP - 857
EP - 863
JO - EUR SPINE J
JF - EUR SPINE J
SN - 0940-6719
IS - 6
M1 - 6
ER -
