Minimally invasive versus open laminotomy
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Laminotomy
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Objective To compare surgical techniques for the treatment of simple lumbar stenosis and to describe a new procedure of canaloplasty Methods Laminectomy,laminotomy and canaloplasty were performed in 48 patients.The surgical outcomes were evaluated with Oswestry Disability Index and radiological findings from one to four years.Results The satisfactory clinical results was achieved in 81 9% patients of undergone laminectomy group,79 7% of laminotomy group,and 82 1% of canaloplasty group were followed up one year after surgery.The satisfactory clinical result was dropped to 74 3% in laminectomy group,however the results were not changed in the laminotomy and canaloplasty groups four years after surgery.Conclusion Short term outcomes of laminectomy,laminotomy and canaloplasty for simple stenosis of lumbar spine were equally satisfactory.Medium term outcomes was better in canaloplasty and laminotomy group,and fair in laminectomy group with clinical and radiological following up.
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In an attempt to eliminate the many negative aspects of conventional extensive laminectomy, we originated in 1981 and have developed a new surgical technique called "suspension laminotomy." A basic principle of this operation is preservation and repair of the soft and bony tissue of the spine with osseous enlargement of the spinal canal. Eighty-one patients were treated with suspension laminotomy. This operative technique can be applied to almost all segments of the spine and can be used for all cases that would usually have been treated with conventional extensive laminectomy. We emphasize the necessity of repairing paraspinal muscles and discuss the postoperative spinal deformities and the dural constriction, which seemed to be caused by scar formation after conventional laminectomy. Suspension laminotomy should minimize the negative aspects of conventional extensive laminectomy. (Neurosurgery 21:950-957, 1987)
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After laminectomy in infants and children vertebral deformities often develop. To prevent these the author applied the reanchoring of the dissected arches and ligaments (laminotomy) with success in four children. The details of the procedure and the reanchoring of the vertebral arches are described. This treatment modality should be favourized instead of the destructive laminectomy in this age group in the majority of cases.
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Abstract In an attempt to eliminate the many negative aspects of conventional extensive laminectomy, we originated in 1981 and have developed a new surgical technique called “suspension laminotomy.” A basic principle of this operation is preservation and repair of the soft and bony tissue of the spine with osseous enlargement of the spinal canal. Eighty-one patients were treated with suspension laminotomy. This operative technique can be applied to almost all segments of the spine and can be used for all cases that would usually have been treated with conventional extensive laminectomy. We emphasize the necessity of repairing paraspinal muscles and discuss the postoperative spinal deformities and the dural constriction, which seemed to be caused by scar formation after conventional laminectomy. Suspension laminotomy should minimize the negative aspects of conventional extensive laminectomy.
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Objectives To compare the efficacy of posterior decompression techniques with conventional laminectomy for lumbar spinal stenosis. Methods The Embase, PubMed, and Cochrane Library databases were searched with no language limitations from inception to January 13, 2022. The main outcomes were functional disability, perceived recovery, leg and back pain, complications. A random effects model was used to pooled data. Risk ratio (RR), mean difference (MD) and 95% confidence interval (CI) were used to report results. The study protocol was published in PROSPERO (CRD42022302218). Results 14 trials including 1,106 participants were included in the final analysis. Bilateral laminotomy was significantly more efficacious in improve functionality than laminectomy [MD: −2.94; (95% CI, −4.12 to −1.76)]. Low incidence of iatrogenic instability due to bilateral laminectomy compared with laminectomy [RR: 0.11; (95% CI, 0.02 to 0.59)]. In addition, between those who received bilateral laminotomy and those undergoing laminectomy, the result showed significant difference regarding recovery [RR: 1.31; (95% CI, 1.03 to 1.67)]. Conclusions This study provides evidence that bilateral laminotomy has advantages in functional recovery, postoperative stability, and postoperative rehabilitation outcomes. Further research is needed to determine whether posterior techniques provide a safe and effective option for conventional laminectomy.
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We assigned 67 patients with central lumbar stenosis alternately to either multiple laminotomy or total laminectomy. The protocol, however, allowed multiple laminotomy to be changed to total laminectomy if it was thought that the former procedure might not give adequate neural decompression. There were therefore three treatment groups: group I consisting of 26 patients submitted to multiple laminotomy; group II, 9 patients scheduled for laminotomy but submitted to laminectomy; and group III, 32 patients scheduled for, and submitted to, laminectomy. The mean follow-up was 3.7 years. Bilateral laminotomy at two or three levels required a longer mean operating time than total laminectomy at an equal number of levels. The mean blood loss at surgery and the clinical results did not differ in the three groups. The mean subjective improvement score for low back pain was higher in group I but there was also a higher incidence of neural complications in this group. No patient in group I had postoperative vertebral instability, whereas this occurred in three patients in groups II and III, who had lumbar scoliosis or degenerative spondylolisthesis preoperatively. Multiple laminotomy is recommended for all patients with developmental stenosis and for those with mild to moderate degenerative stenosis or degenerative spondylolisthesis. Total laminectomy is to be preferred for patients with severe degenerative stenosis or marked degenerative spondylolisthesis.
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After laminectomy in infants and children vertebral deformities often develop. To prevent these the author applied the reanchoring of the dissected arches and ligaments (laminotomy) with success in four children. The details of the procedure and the reanchoring of the vertebral arches are described. This treatment modality should be favourized instead of the destructive laminectomy in this age group in the majority of cases.
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Objective: The objective of the study was to compare the surgical outcome between Bilateral Laminotomy, Laminectomy and Unilateral approach in Lumber Spinal Stenosis. Methods: One hundred forty four (144) patients were going to underwent three prospective surgery such as Bilateral Laminotomy (48 patients), Laminectomy (48 patient) and Unilateral approach (48 patients). This study conducted between 2009 to 2014 at private medical hospitals in Dhaka. All the patients ages are e” 40. All the patients were observed prospectively. Clinical outcomes for back and leg pain were analyses using Oswestry Disability Index (ODI) questionnaires and Swiss score. Results: Satisfactory decompression was accomplished in all patients. The complications were less in patients who had experienced Unilateral Laminotomy rather than Bilateral Laminotomy and Laminectomy. Mean age of patients were 52.16+/ - 6.87 years with the range of 40-68 years. Among them 101 patients are male (70.11%) and 43 patients are female (29.99%). The rates of improvements are 79.17% in Laminectomy, 85.1% in Bilateral Laminotomy and 91.9% in Unilateral Laminotomy. From here unilateral Laminotomy have quite better results than others. Minimum follow up period was 2 years. Conclusion: Unilateral Laminotomy has a satisfactory outcome in Lumber Spinal Stenosis surgery in comparison to rest of two approaches. Postoperative complications were minimum in respect to blood loss, hospital stay and revision surgery. Bang. J Neurosurgery 2020; 9(2): 105-110
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