Comparison of clinical outcomes of open and minimally invasive decompression and stabilization at stenosis of the lumbar spine
Keywords:lumbar stenosis, decompression, stabilization
Objective. To compare the results of open and minimally invasive surgical procedures for the decompression and stabilization of the lumbar spine stenosis.
Materials and methods. We operated 171 patients with instable stenosis of the lumbar spine, using instrumentation. One hundred and thirty-six surgical interventions (OPEN group) were performed using traditional open method with midline incision, detachment of paravertebral muscles from bone structures. In 35 patients (the MAST group), we performed minimally invasive decompression using Medtronic METRx and QUADRANT systems. There were estimated the pain syndrome intensity with NPS, quality of life with OSWESTRY, surgery duration, blood loss, time of staying in hospital, and X-ray loading during operation.
Results. Surgery duration was slightly higher than that of the classical operation – 174±79 and 158±77 min in MAST and OPEN, respectively. Blood loss in MAST and OPEN groups was 150±60 and 680±130 ml, respectively. X-ray control during the operation in MAST and OPEN groups was 46 and 21, respectively. NPS before operation in MAST and OPEN groups was 7.7, 7.95, respectively. The week after operation in MAST group was 3.0, in OPEN group was 3.6, 6 months MAST and OPEN groups was 1.67, 2.13, respectively; at the time of interview MAST – 1.75, OPEN – 2.08. Before surgery, OSWESTRY was 62% in both groups. In 7 days in MAST and OPEN groups it was 28%, 32%, respectively; in 6 months it was 19.3% and 19.2%in MAST and OPEN groups, respectively, and at the time of interview in MAST group it was 17.6%, in OPEN – 17.6%. The average stay in the hospital is 9.00±2.81 and 12.5±2.35 days.
Conclusion. The results show effectiveness of both surgical techniques used. The MAST group is characterized with lower invasiveness and lower blood loss whereas more intensive X-ray irradiation and longer duration of the operation. Activation of patients is more comfortable in the MAST group.
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Copyright (c) 2018 Kostyantyn I. Gorbatyuk, Valeriy М. Olkhov, Volodymyr V. Kirichenko, Dmytro S. Maystruk, Oleksandr S. Lemeshov
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