Expansive lumbar laminoplasty for degenerative spinal stenosis in patients below 70 years of age

Matsui, Hisao; Koike, Masahiko; Ishihara, Hirokazu; Hirano, Naoki; Tsuji, Haruo

doi:10.1007/bf01301435

Cited by 19 publications

(6 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…12 Various laminoplasty techniques have been developed to treat lumbar spondylosis and lumbar stenosis. 1,8,13,23,26,35 These postdecompression techniques either allow the preservation or reconstruction of the lamina to restore the anatomy or even enlarge the spinal canal; however, stripping of the paraspinal muscles from the spinal segments is needed in these procedures. Recently, a lumbar spinous process-splitting laminectomy, a procedure similar to our chimney sublaminar decompression, has been performed to treat lumbar canal stenosis.…”

Section: Discussionmentioning

confidence: 99%

Chimney sublaminar decompression for degenerative lumbar spinal stenosis

Lin

Tseng

Yang

et al. 2006

SPI

View full text Add to dashboard Cite

Object The authors evaluated the efficacy and safety of so-called chimney sublaminar decompression, a new technique to decompress the degenerative stenotic lumbar spinal canal without stripping of the paravertebral muscles. Methods Eighteen patients (nine men and nine women whose mean age was 67 years) with symptoms of claudication were selected to undergo chimney sublaminar decompression. The duration of symptoms was greater than 6 months in 17 patients. Two lumbar segments were involved in seven patients, three in eight, and four in the remaining three patients. Central canal stenosis was present in 13 patients, and lateral recess stenosis in five patients. Mild spondylolisthesis was noted in seven patients. All the patients underwent chimney sublaminar decompression. After surgery, mild wound pain developed in 14 patients, moderate wound pain in two, and severe wound pain in two. The postoperative hospital stay was 4 days or fewer in 14 patients. At follow-up examination, excellent, good, and fair outcomes were achieved in 11, five, and two patients, respectively. No patient required a body brace, and no worsening of preexisting spondylolisthesis was detected. The spinal canal was increased to two- to 6.8-fold (mean 4.2-fold) the preoperative size. Conclusions Compared with laminectomy or endoscopic surgery, the aforementioned chimney sublaminar decompression technique was an equally effective and less invasive technique in the treatment of degenerative lumbar canal stenosis.

show abstract

Section: Discussionmentioning

confidence: 99%

Chimney sublaminar decompression for degenerative lumbar spinal stenosis

Lin

Tseng

Yang

et al. 2006

SPI

View full text Add to dashboard Cite

show abstract

Section: Methodsmentioning

confidence: 99%

“…Clinical and neurological symptoms were assessed before surgery and 1, 3, 6, and 12 months after surgery using the Japanese Orthopedic Association Back Pain Evaluation Questionnaire (JOABPEQ) 22 and Visual analogue scale (VAS) for leg pain and low back pain. 23 Radiological assessment including X-ray (anterior and lateral views), CT-scan and three-dimensional reconstruction and magnetic resonance images (MRI) were performed by two independent spine surgeons to evaluate surgical indications, intervertebral space height (ISH), intervertebral space stability, intervertebral bone fusion, and degradation of the cage.…”

Section: Outcome Measurementioning

confidence: 99%

Clinical application of 3D‐printed biodegradable lumbar interbody cage (polycaprolactone/β‐tricalcium phosphate) for posterior lumbar interbody fusion

Liu

Bao

et al. 2023

J Biomed Mater Res

View full text Add to dashboard Cite

A novel 3D‐printed biodegradable cage composed of polycaprolactone (PCL) and beta‐tricalcium phosphate (β‐TCP) in a mass ratio of 50:50, with stable resorption patterns and mechanical strength has been developed for lumbar interbody fusion. This is a prospective cohort study to evaluate the short‐ and mid‐term safety and efficacy of this biodegradable cage in posterior lumbar interbody fusion (PLIF) surgery. This was a prospective single‐arm pilot clinical trial in 22 patients with a follow‐up time of 1, 3, 6, and 12 months, postoperatively. Clinical outcomes were assessed using the Japanese Orthopedic Association Back Pain Evaluation Questionnaire (JOABPEQ) and Visual analogue scale (VAS) for leg pain and low back pain. Radiological examination included X‐ray, CT scan, and three‐dimensional reconstruction to evaluate surgical indications, intervertebral space height (ISH), intervertebral bone fusion and cage degradation. A total of 22 patients was included, with an average age of 53.5 years. Among 22 patients, one patient lost to follow‐up and one patient withdrew from the clinical trial because of cage retropulsion. The remaining 20 patients showed significant improvement in clinical and imaging outcomes compared to the preoperative period. The overall mean VAS for back decreased from 5.85 ± 0.99 preoperatively to 1.15 ± 0.86 at the 12‐month follow‐up (p < .001); the VAS for leg decreased from 5.75 ± 1.11 to 1.05 ± 0.76 (p < .001); the JOA score improved from 13.8 ± 2.64 to 26.45 ± 2.46 (p < .001). The mean intervertebral space height (ISH) increased from 11.01 ± 1.75 mm preoperatively to 12.67 ± 1.89 mm at the 12‐month follow‐up and the bone fusion reached 95.2% (20/21 disc segments). Partial resorption (inferior to 50% compared with the initial cage size) were found in all cages (21/21). The clinical and radiological assessments showed that the application of 3D‐printed biodegradable PCL/β‐TCP cages in PLIF yielded satisfactory results at the 12‐month follow‐up. In the future, long‐term clinical observations and controlled clinical trials are required to further validate the safety and efficacy of this novel cage.

show abstract

“…The original surgical technique of expansive lumbar laminoplasty was described by Tsuji et al [1][2][3][4][5] . The step-by-step procedure is described below.…”

Section: Surgical Techniquementioning

confidence: 99%