Clinical Outcome of Cervical Laminoplasty and Postoperative Radiological Change for Cervical Myelopathy With Degenerative Spondylolisthesis

Suzuki, Akinobu; Tamai, Katsuto; Terai, Hidetomi; Hoshino, Minoru; Toyoda, Hiromitsu; Takahashi, Shinji; Hayashi, Kazunori; Ohyama, Shoichiro; Nakamura, Hiroaki

doi:10.1097/brs.0000000000001706

Cited by 20 publications

(31 citation statements)

References 17 publications

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“…Similar findings were found in previous studies [3,46,47]. With regard to cervical spondylolisthesis, the overall prevalence has been reported previously to be 3.9-28.2%, and was mostly found at C4/C5 [35,36,39,[48][49][50]; the prevalence of anterior spondylolisthesis ranged from 0.9 to 6.3%, and of posterior spondylolisthesis from 0 to 13.3% [35-39, 49, 50]. Similarly, the current results showed that the overall prevalence of cervical spondylolisthesis was 6.5% (also mostly found at C4/C5); the prevalence of anterior and posterior spondylolisthesis was 2.5 and 3.9%, respectively.…”

Section: Discussionsupporting

confidence: 91%

“…Spondylolisthesis (anterolisthesis and retrolisthesis) was noted as ''present'' or "absent" for each subject and intervertebral disc level and was defined as 2 mm or more vertebra slippage of the cranial vertebra on the caudal vertebra in the anterior or posterior direction [30][31][32][33][34][35][36][37]. The slippage distance was measured from the poster inferior corner of the cranial vertebra to the tangential line along the posterior border of the caudal vertebra.…”

Section: Radiographic Assessmentmentioning

confidence: 99%

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Radiographic cervical spine degenerative findings: a study on a large population from age 18 to 97 years

et al. 2020

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Purpose The aims of this study were (1) to determine the prevalence of radiographic cervical disc degeneration in a large population of patients aged from 18 to 97 years; (2) to investigate individually the prevalence and distribution of height loss, osteophyte formation, endplate sclerosis and spondylolisthesis; and (3) to describe the patterns of cervical disc degeneration. Methods A retrospective study was performed. Standard lateral cervical spine radiographs in standing, neutral position of 1581 consecutive patients (723 males, 858 females) with an average age of 41.2 ± 18.2 years were evaluated. Cervical disc degeneration was graded from C2/C3 to C6/C7 based on a validated quantitative grading system. The prevalence and distribution of radiographic findings were evaluated and associations with age were investigated. Results 53.9% of individuals had radiographic disc degeneration and the most affected level was C5/C6. The presence and severity of disc degeneration were found to be significantly associated with age both in male and female subjects. The most frequent and severe occurrences of height loss, osteophyte formation, and endplate sclerosis were at C5/C6, whereas spondylolisthesis was most observed at C4/C5. Age was significantly correlated with radiographic degenerative findings. Contiguous levels degeneration pattern was more likely found than skipped level degeneration. The number of degenerated levels was also associated with age. Conclusions The presence and severity of radiographic disc degeneration increased with aging in the cervical spine. Older age was associated with greater number of degenerated disc levels. Furthermore, the correlations between age and the degree of degenerative findings were stronger at C5/C6 and C6/C7 than at other cervical spinal levels.

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Section: Discussionsupporting

confidence: 91%

Section: Radiographic Assessmentmentioning

confidence: 99%

Radiographic cervical spine degenerative findings: a study on a large population from age 18 to 97 years

et al. 2020

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“…Recent years, studies show that because of the characteristics of large activity and poor stability of cervical vertebrae, there are bone graft loss and collapse induced cervical deformity, pseudoarthrosis and other complications during the anterior cervical decompression and bone graft fusion [7]. Also long time external fixations are required postoperative, for early break achievement and for better lateral intervertebral fusion [8,9].…”

Section: Discussionmentioning

confidence: 99%

Anterior Segmental Decompression and Interbody Fusion for Multi-segmental Cervical Spondylotic Myelopathy in the Elderly

Zhang¹

2017

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Abstract:To explore the clinical effect of anterior segmental decompression and interbody fusion in treatment of elderly patients with complex cervical spondylotic myelopathy of three segments or more, 50 patients, with titanium plate internal fixation bone fusion underwent anterior cervical decompression and multi segmental cervical spondylosis, were collected. Parameters of operation time, intraoperative blood loss, JOA score 1 week before and after, 12 months after operation, cervical X-ray, CT and MRI before and after operation were measured. Clinical symptoms and the improvement of JOA, internal fixation and bone grafting fusion, cervical standard sagittal Cobb angle, lateral fusion segment of vertebral body height (height of anterior border, HAB) and posterior height (height of posterior border, HPB), were observed. Operation time was 90 ~ 150 minutes, average 120 minutes. The amount of bleeding 150 ~ 450 ml, average 325.5 ml. Mean follow-up time was 15.1 months. 2 weeks after operation, sympathetic symptoms were improved obviously, lower limb muscle strength was increased, physical activity was significantly improved, and anesthesia of double upper limbs disappeared. Except for the 3 cases who had serious cervical spinal cord injury showed no obvious recovery, the other 47 patients showed significant improved neurological recovery. X-ray results of 12 months after operation showed that 50 cases of fused intervertebral, intervertebral height and lordosis maintained good. In general, anterior segmental decompression and bone graft fusion and titanium plate internal fixation operation is a safe and effective operation for treating the three section and above cervical spondylotic myelopathy, worth recommending.

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“…For decades, single-door cervical laminoplasty (SDCL) has developed to be the primary treatment for syndromes such as ossification of the posterior longitudinal ligament (OPLL), multilevel cervical spondylotic myelopathy (CSM), or multilevel cervical disc herniation associated with developmental spinal canal stenosis. [ 1 – 3 ] Compared to laminectomy, which dominated the surgery treatment for those syndromes before SDCL, SDCL creates more satisfying feedback from patients. Also, SDCL is much more straightforward and convenient for surgery operation.…”

Section: Introductionmentioning

confidence: 99%

Relationship of actual laminoplasty opening size and increment of the cross-sectional area based on single-door cervical laminoplasy

Yang

Tian

et al. 2018

Medicine

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Background:Amounts of clinic research have been performed to investigate the increment of cross-sectional area in single-door cervical laminoplasty (SDCL). However, no one has taken the effects of surgery drill into consideration.Methods:A mathematical model was built to investigate the relation of actual laminoplasty opening size (LOS), the transverse canal diameter (TCD), and the increment of cross-sectional area in SDCL). The model was based on geometric analysis on deformation of spinal canal; the relation was derived and characterized as: , where a is the TCD, b the actual LOS, c the size of mini-plate, and d is diameter of the surgery drill bit. In the equation, the related variables would be measured to estimate the increment of cross-sectional area before the surgery. In the current research, 25 patients authorized to use their CT scans of C3∼C7 as the subject samples.Results:The effects of surgery SDCL were very significant; for each patient, the cross-sectional area was enlarged dramatically after the surgery (P < .01). On the contrary, the difference between the cross-sectional area obtained by the equation and that measured by software was statistically negligible (P > .05), which confirmed the reliability of the modeling equation.Conclusions:Before the SDCL, increment of the cross-sectional area can be estimated by the above-mentioned modeling equation with a high-level reliability. This method ensures the optimum selection of mini-plate before operation for each patient.

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Clinical Outcome of Cervical Laminoplasty and Postoperative Radiological Change for Cervical Myelopathy With Degenerative Spondylolisthesis

Abstract: 3.

Cited by 20 publications

References 17 publications

Radiographic cervical spine degenerative findings: a study on a large population from age 18 to 97 years

Radiographic cervical spine degenerative findings: a study on a large population from age 18 to 97 years

Anterior Segmental Decompression and Interbody Fusion for Multi-segmental Cervical Spondylotic Myelopathy in the Elderly

Relationship of actual laminoplasty opening size and increment of the cross-sectional area based on single-door cervical laminoplasy

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