Effect of Trabecular Microstructure of Spinous Process on Spinal Fusion and Clinical Outcomes After Posterior Lumbar Interbody Fusion: Bone Surface/Total Volume as Independent Favorable Indicator for Fusion Success

We developed a new method of posterior lumbar interbody fusion (PLIF) using an en-bloc resected lamina with or without a hydroxyapatite block as an interbody spacer instead of auto-iliac bone, in combination with rigid-type spinal instrumentation. The purpose of this study was to evaluate the effectiveness of our method. There were 23 patients (13 males, 10 females, age at the time of operation: 21–71 years, mean 50.5 years; follow-up: 1–4 years, mean 2 years and 3 months). In 10 patients with spondylolitic spondylolisthesis and 3 patients with spondylolysis, the floating lamina was resected enbloc by mid-line splitting. In 7 patients with degenerative spondylolisthesis and 3 patients with unstable spine, a cleavage was made at the isthmus and then the complex of lamina and inferior spinous process was resected en-bloc. Seventeen patients with olisthesis underwent reduction. PLIF was performed at the L4/L5 level in 10 patients and the L5/S1 level in 13 patients. Sixteen patients with preoperative low back pain recovered, except for one patient with instability at the adjacent vertebra. All of the seven patients with preoperative gait disturbance recovered. The ratio of olisthesis changed from preoperative 30% to postoperative 18% on average. Good bony union was obtained in both the patients with and those without a hydroxyapatite spacer. Posterior lumbar interbody fusion using an en-bloc resected lamina as an interbody spacer in combination with rigid-type spinal instrumentation was useful.

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Pedicle screws vs minimally invasive posterior-lumbar-interbody-fusion with spinous process fixation in the workers compensation population: early outcomes with minimum one year follow up

Journal of the American College of Surgeons ◽

10.1016/j.jamcollsurg.2014.07.716 ◽

2014 ◽

Vol 219 (4) ◽

pp. e123-e124

Author(s):

Christian I. Fras ◽

Amanda Castilleja

Keyword(s):

Minimally Invasive ◽

Interbody Fusion ◽

Spinous Process ◽

Pedicle Screws ◽

Posterior Lumbar Interbody Fusion ◽

Workers Compensation ◽

Lumbar Interbody Fusion ◽

One Year

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Clinical Outcomes After Posterior Lumbar Interbody Fusion

Clinical Spine Surgery ◽

10.1097/bsd.0000000000000514 ◽

2017 ◽

Vol 30 (10) ◽

pp. E1411-E1418 ◽

Cited By ~ 20

Author(s):

Shota Takenaka ◽

Yoshihiro Mukai ◽

Kosuke Tateishi ◽

Noboru Hosono ◽

Takeshi Fuji ◽

...

Keyword(s):

Clinical Outcomes ◽

Interbody Fusion ◽

Posterior Lumbar Interbody Fusion ◽

Lumbar Interbody Fusion

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Unilateral transforaminal lumbar interbody fusion and bilateral anterior-column fixation with two Brantigan I/F cages per level: clinical outcomes during a minimum 2-year follow-up period

Journal of Neurosurgery Spine ◽

10.3171/spi.2006.4.3.198 ◽

2006 ◽

Vol 4 (3) ◽

pp. 198-205 ◽

Cited By ~ 38

Author(s):

Hiroshi Taneichi ◽

Kota Suda ◽

Tomomichi Kajino ◽

Akira Matsumura ◽

Hiroshi Moridaira ◽

...

Keyword(s):

Clinical Outcomes ◽

Interbody Fusion ◽

Japanese Orthopaedic Association ◽

Posterior Lumbar Interbody Fusion ◽

Transforaminal Lumbar Interbody Fusion ◽

Anterior Column ◽

Lumbar Interbody Fusion ◽

Anterior Column Support ◽

The Mean

Object There are no published reports of unilateral transforaminal lumbar interbody fusion (TLIF) in which two Brantigan I/F cages were placed per level through a single portal to achieve bilateral anterior-column support. The authors describe such a surgical technique and evaluate the clinical outcomes of this procedure. Methods Data obtained in 86 (93.5%) of the first 92 consecutive patients who underwent the procedure were retrospectively reviewed; the minimum follow-up duration was 2 years. The clinical outcomes were evaluated using the Japanese Orthopaedic Association (JOA) scoring system. Disc height, disc angle, cage positioning in the axial plane, and fusion status were radiographically evaluated. The mean follow-up period was 33.8 months. The mean improvement in the JOA score was 77.2%. Fusion was successful in 93% of the cases. According to the Farfan method, the mean anterior and posterior disc heights increased from 20.2 and 16.9% preoperatively to 35.9 and 22.7% at follow up, respectively (p < 0.01). The mean disc angle increased from 4.8° preoperatively to 7.5° at last follow-up examination (p < 0.01). Two cages were correctly placed to achieve bilateral anterior-column support in greater than 85% of the cases. The following complications occurred: hardware migration in two patients and deep infection cured by intravenous antibiotic therapy in one patient. Conclusions Unilateral TLIF involving the placement of two Brantigan cages per level led to good clinical results. Two Brantigan cages were adequately placed via a single portal, and reliable bilateral anterior-column support was achieved. Although the less invasive unilateral approach was used, the outcomes were as good as those in many reported series of posterior lumbar interbody fusion in which the Brantigan cages were placed via the bilateral approach.

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Clinical and radiological outcomes in patients who underwent posterior lumbar interbody fusion: comparisons between unilateral and bilateral cage insertion

BMC Musculoskeletal Disorders ◽

10.1186/s12891-021-04852-y ◽

2021 ◽

Vol 22 (1) ◽

Author(s):

Jae Hwan Cho ◽

Chang Ju Hwang ◽

Dong-Ho Lee ◽

Choon Sung Lee

Keyword(s):

Clinical Outcomes ◽

Interbody Fusion ◽

Demographic Data ◽

Posterior Lumbar Interbody Fusion ◽

Lumbar Interbody Fusion ◽

General Activity ◽

Mineral Density ◽

Analog Scale ◽

Group B ◽

Level Group

Abstract Background Although the original technique involves inserting two cages bilaterally, there could be situations that only allow for insertion of one cage unilaterally. However, only a few studies have compared the outcomes between unilateral and bilateral cage insertion. The purpose of this study was to compare the clinical and radiological outcomes in patients who underwent posterior lumbar interbody fusion (PLIF) between unilaterally and bilaterally inserted cages. Methods Among 206 eligible patients who underwent 1- or 2-level PLIF, 78 patients were 1:3 cohort-matched by age, sex, and operation level (group U, 19 patients with unilateral cages; and group B, 57 patients with bilateral cages). Fusion status was evaluated by computed tomography (CT) scans at postoperative 1 year. Clinical outcomes were measured by visual analog scale (VAS), Oswestry Disability Index (ODI), and EQ-5D. Radiological and clinical parameters were compared between the two groups. Risk factors for pseudarthrosis were also analyzed by multivariate analysis. Results The demographic data were not significantly different between the two groups. However, previous laminectomy, asymmetric disc collapse, and fusion at L5-S1 level were more frequently found in group U (P = 0.003, P = 0.014, and P = 0.014, respectively). Furthermore, pseudarthrosis was more frequently observed in group U (36.8%) than in group B (7.0%) (P = 0.004). Back pain VAS was higher in group U at postoperative 1 year (P = 0.033). Lower general activity function of EQ-5D was observed in group U at postoperative 1 year (P = 0.035). Older age (P = 0.028), unilateral cage (P = 0.007), and higher bone mineral density (P = 0.033) were positively correlated with pseudarthrosis. Conclusions Unilaterally inserted cage might be a possible risk factor for pseudarthrosis when performing PLIF, which could be related with the difficult working conditions such as scars due to previous laminectomy or asymmetric disc collapse. Furthermore, suboptimal clinical outcomes are expected following PLIF with unilateral cage insertion at postoperative 1 year regardless of similar clinical outcomes at postoperative 2 year. Therefore, caution is advised when inserting cages unilaterally, especially under above-mentioned conditions in terms of its possible relationship with symptomatic pseudarthrosis.

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Analysis of Spinopelvic Sagittal Balance and Persistent Low Back Pain (PLBP) for Degenerative Spondylolisthesis (DS) following Posterior Lumbar Interbody Fusion (PLIF)

Pain Research and Management ◽

10.1155/2020/5971937 ◽

2020 ◽

Vol 2020 ◽

pp. 1-7

Author(s):

Shuangjun He ◽

Yijian Zhang ◽

Wei Ji ◽

Hao Liu ◽

Fan He ◽

...

Keyword(s):

Low Back Pain ◽

Back Pain ◽

Clinical Outcomes ◽

Sagittal Balance ◽

Interbody Fusion ◽

Degenerative Spondylolisthesis ◽

Posterior Lumbar Interbody Fusion ◽

Low Back ◽

Lumbar Interbody Fusion ◽

Spinopelvic Parameters

Objective. To investigate the change of spinopelvic sagittal balance and clinical outcomes after posterior lumbar interbody fusion (PLIF) in patients with degenerative spondylolisthesis (DS), especially the relationship between sagittal spinopelvic parameters and persistent low back pain (PLBP). Methods. 107 patients who were diagnosed with DS and underwent PLIF in our department were enrolled retrospectively in the present study. Sagittal spinopelvic parameters including lumbar lordosis (LL), segmental lordosis (SL), height of the disc (HOD), sacral slope (SS), pelvic incidence (PI), and pelvic tilt (PT) were recorded pre- and postoperatively. Sagittal balance and clinical outcomes were compared between patients with and without PLBP. Pearson correlation was used to analyze the change of sagittal balance parameters and clinical functions. Logistic regression analysis was performed to examine the risk factors of PLBP. Results. It showed significant improvements of SL, HOD, and PT postoperatively. Both the Numeric Rating Scale (NRS) and Oswestry Disability Index (ODI) had significant improvement postoperatively. Change of PT and SL also differed observably between patients with and without PLBP. SL and PT were correlated with NRS and ODI, and insufficient restoration of PT was an independent factor for PLBP. Conclusion. The sagittal balance parameters and clinical outcomes can be improved markedly via PLIF for treating DS. Restoration of SL and PT was correlated with satisfactory outcomes, and adequate improvement of PT may have positive impact on reducing PLBP.

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Posterior lumbar interbody fusion with total facetectomy for low-dysplastic isthmic spondylolisthesis: effects of slip reduction on surgical outcomes

Journal of Neurosurgery Spine ◽

10.3171/2014.4.spine13925 ◽

2014 ◽

Vol 21 (2) ◽

pp. 171-178 ◽

Cited By ~ 10

Author(s):

Shinya Okuda ◽

Takenori Oda ◽

Ryoji Yamasaki ◽

Takamitsu Haku ◽

Takafumi Maeno ◽

...

Keyword(s):

Postoperative Complications ◽

Clinical Outcomes ◽

Surgical Outcomes ◽

Recovery Rate ◽

Interbody Fusion ◽

Japanese Orthopaedic Association ◽

Posterior Lumbar Interbody Fusion ◽

Lumbar Interbody Fusion ◽

Isthmic Spondylolisthesis ◽

Instrumentation Failure

Object The management of isthmic spondylolisthesis remains controversial, especially with respect to reduction. There have been no reports regarding appropriate slip reduction. The purpose of this study was to investigate the following issues: 1) surgical outcomes of posterior lumbar interbody fusion (PLIF) with total facetectomy for low-dysplastic isthmic spondylolisthesis, including postoperative complications; 2) effects of slip reduction on surgical outcomes; and 3) appropriate slip reduction. Methods A total of 106 patients who underwent PLIF with total facetectomy for low-dysplastic isthmic spondylolisthesis and who were followed for at least 2 years were reviewed. The average follow-up period was 8 years. Surgical outcomes, including the scores assessed using the Japanese Orthopaedic Association scoring system, the recovery rate, and postoperative complications were investigated. As for radiographic evaluations, pre- and postoperative slip and disc height, instrumentation failure, and fusion status were also examined. Results The pre- and postoperative average Japanese Orthopaedic Association scores were 14 (range 3–25) and 25 (range 11–29) points, respectively. The average recovery rate was 73% (range 0%–100%). The average pre- and postoperative slip was 24% and 10%, respectively. A significant correlation between postoperative slip and clinical outcomes was found; clinical outcomes were better in proportion to slip reduction. Although no statistical difference was detected in clinical outcomes between postoperative slip of less than 10% and from 10% to 20%, patients with postoperative slip of more than 20% showed significantly worse clinical outcomes. Postoperative complications included neurological deficits in 7 patients (transient motor loss in 6 and permanent motor loss in 1), instrumentation failures in 7, adjacent-segment degeneration in 5, and nonunion in 4. Instrumentation failures occurred significantly more often in patients with more slip reduction, although slip reduction did not affect the other postoperative complications. All patients with instrumentation failure showed postoperative slip reduction within 10%. Conclusions The use of PLIF with total facetectomy for low-dysplastic isthmic spondylolisthesis appears to produce satisfactory clinical outcomes, with an average of 73% recovery rate and few postoperative complications. Although clinical outcomes were better in proportion to slip reduction, excessive reduction caused instrumentation failure, and patients with less reduction demonstrated worse clinical outcomes. Appropriate reduction resulted in a postoperative slip ranging from 10% to 20%.

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