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Dynamic lumbar pedicle screw-rod stabilization: two-year follow-up and comparison with fusion.

Ozer AF, Crawford NR, Sasani M, Oktenoglu T, Bozkus H, Kaner T, Aydin S - Open Orthop J (2010)

Bottom Line: In this study, clinical and radiological results of one LPDSS (Saphinaz, Medikon AS, Turkey) were compared with results of rigid fixation after two-year follow-up.In both groups, the VAS and ODI scores decreased significantly from preoperatively to postoperatively.LPDSS appears to be a good alternative to rigid fixation.

View Article: PubMed Central - PubMed

Affiliation: American Hospital, Department of Neurosurgery, Istanbul, Turkey.

ABSTRACT

Background: A lumbar pedicular dynamic stabilization system (LPDSS) is an alternative to fusion for treatment of degenerative disc disease (DDD). In this study, clinical and radiological results of one LPDSS (Saphinaz, Medikon AS, Turkey) were compared with results of rigid fixation after two-year follow-up.

Methods: All patients had anteroposterior and lateral standing x-rays of the lumbar spine preoperatively and at 3 months, 12 months and 24 months after surgery. Lordosis of the lumbar spine, segmental lordosis and ratio of the height of the intervertebral disc spaces (IVS) measured preoperatively and at 3 months, 12 months and 24 months after surgery. All patients underwent MRI and/or CT preoperatively, 3months, 12 months and 24 months postoperatively. The ratio of intervertebral disc space to vertebral body height (IVS) and segmental and lumbar lordosis were evaluated preoperatively and postoperatively. Pain scores were evaluated via Visual Analog Scale (VAS) and Oswestry Disability Index (ODI) preoperatively and postoperatively.

Results: In both groups, the VAS and ODI scores decreased significantly from preoperatively to postoperatively. There was no difference in the scores between groups except that a lower VAS and ODI scores were observed after 3 months in the LPDSS group. In both groups, the IVS ratio remained unchanged between preoperative and postoperative conditions. The lumbar and segmental lordotic angles decreased insignificantly to preoperative levels in the months following surgery.

Conclusions: Patients with LPDSS had equivalent relief of pain and maintenance of sagittal balance to patients with standard rigid screw-rod fixation. LPDSS appears to be a good alternative to rigid fixation.

No MeSH data available.


Related in: MedlinePlus

Comparison in outcomes of Oswestry Disability Index (ODI) scores between rigidly stabilized patients and patients receiving LPDSS at three time points.
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Figure 3: Comparison in outcomes of Oswestry Disability Index (ODI) scores between rigidly stabilized patients and patients receiving LPDSS at three time points.

Mentions: Preoperatively, the mean VAS pain score was greater in the rigidly stabilized group than in the LPDSS group, significantly (p = 0.045, Fig. 2). The ODI score was greater in the LPDSS group than in the rigidly stabilized group, although not significantly (p = 0.111, Fig. 3). The mean preoperative IVS ratio was significantly greater in the rigidly stabilized group than in the LPDSS group (p = 0.03, Table 1). The mean preoperative angles of lumbar lordosis and segmental lordosis were not significantly different between rigidly stabilized and LPDSS subjects (p > 0.18, Table 2).


Dynamic lumbar pedicle screw-rod stabilization: two-year follow-up and comparison with fusion.

Ozer AF, Crawford NR, Sasani M, Oktenoglu T, Bozkus H, Kaner T, Aydin S - Open Orthop J (2010)

Comparison in outcomes of Oswestry Disability Index (ODI) scores between rigidly stabilized patients and patients receiving LPDSS at three time points.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2864427&req=5

Figure 3: Comparison in outcomes of Oswestry Disability Index (ODI) scores between rigidly stabilized patients and patients receiving LPDSS at three time points.
Mentions: Preoperatively, the mean VAS pain score was greater in the rigidly stabilized group than in the LPDSS group, significantly (p = 0.045, Fig. 2). The ODI score was greater in the LPDSS group than in the rigidly stabilized group, although not significantly (p = 0.111, Fig. 3). The mean preoperative IVS ratio was significantly greater in the rigidly stabilized group than in the LPDSS group (p = 0.03, Table 1). The mean preoperative angles of lumbar lordosis and segmental lordosis were not significantly different between rigidly stabilized and LPDSS subjects (p > 0.18, Table 2).

Bottom Line: In this study, clinical and radiological results of one LPDSS (Saphinaz, Medikon AS, Turkey) were compared with results of rigid fixation after two-year follow-up.In both groups, the VAS and ODI scores decreased significantly from preoperatively to postoperatively.LPDSS appears to be a good alternative to rigid fixation.

View Article: PubMed Central - PubMed

Affiliation: American Hospital, Department of Neurosurgery, Istanbul, Turkey.

ABSTRACT

Background: A lumbar pedicular dynamic stabilization system (LPDSS) is an alternative to fusion for treatment of degenerative disc disease (DDD). In this study, clinical and radiological results of one LPDSS (Saphinaz, Medikon AS, Turkey) were compared with results of rigid fixation after two-year follow-up.

Methods: All patients had anteroposterior and lateral standing x-rays of the lumbar spine preoperatively and at 3 months, 12 months and 24 months after surgery. Lordosis of the lumbar spine, segmental lordosis and ratio of the height of the intervertebral disc spaces (IVS) measured preoperatively and at 3 months, 12 months and 24 months after surgery. All patients underwent MRI and/or CT preoperatively, 3months, 12 months and 24 months postoperatively. The ratio of intervertebral disc space to vertebral body height (IVS) and segmental and lumbar lordosis were evaluated preoperatively and postoperatively. Pain scores were evaluated via Visual Analog Scale (VAS) and Oswestry Disability Index (ODI) preoperatively and postoperatively.

Results: In both groups, the VAS and ODI scores decreased significantly from preoperatively to postoperatively. There was no difference in the scores between groups except that a lower VAS and ODI scores were observed after 3 months in the LPDSS group. In both groups, the IVS ratio remained unchanged between preoperative and postoperative conditions. The lumbar and segmental lordotic angles decreased insignificantly to preoperative levels in the months following surgery.

Conclusions: Patients with LPDSS had equivalent relief of pain and maintenance of sagittal balance to patients with standard rigid screw-rod fixation. LPDSS appears to be a good alternative to rigid fixation.

No MeSH data available.


Related in: MedlinePlus