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Lee J, Schupper AJ, Okewunmi J, Bronson WH, Steinberger JM, Lenke LG, Lin JD. The iliac kickstand screw: anatomic CT analysis of screw trajectory and osseous corridor for screw placement. Br J Neurosurg 2023:1-5. [PMID: 38050370 DOI: 10.1080/02688697.2023.2288590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 11/08/2023] [Indexed: 12/06/2023]
Abstract
INTRODUCTION The 'kickstand screw-rod' technique has been recently described for correction of coronal malalignment. This technique utilizes powerful 'construct-to-ilium' distraction between a fixed multi-screw thoracic construct and the ilium, facilitated by a novel 'iliac kickstand screw'. The 'iliac kickstand screw' traverses a previously undescribed osseous corridor in the ilium. OBJECTIVE Using a radiographic CT study, the objective is to describe a large osseous corridor within the ilium to accommodate the novel iliac kickstand screw. METHODS 50 consecutive patients with pelvic CTs at an academic medical center were queried. Simulated iliac kickstand screw trajectories for the left and right hemipelvis were analyzed with 3D visualization software. Maximal screw lengths and dimensions, and trajectories in the osseous corridor were measured. RESULTS 50 patients' (31 female, 19 male) pelvic CTs were measured with a total of 100 simulated screws. The mean age was 52.4 years and BMI 28.1 ± 7.9. The average length is 119.7 ± 6.6 mm (range 98.7 - 135.3). The narrowest width (maximum potential screw diameter) is 17.8 ± 2.9 mm (coronal) and 20.8 ± 5.3 mm (sagittal). The starting point to the top of the iliac crest is 66.4 mm lateral to midline, and 15.9° caudal in the sagittal and 6.1° lateral in the coronal planes. CONCLUSIONS The novel iliac kickstand screw traverses a consistent and large osseous corridor within the ilium. The average simulated screw length is 119.7 mm and maximum potential diameter of 17.8 mm. Starting points relative to the iliac crest are identified.
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Affiliation(s)
- Jonathan Lee
- Department of Orthopedic Surgery, Mount Sinai Hospital, New York, NY, USA
| | | | - Jeffrey Okewunmi
- Department of Orthopedic Surgery, Mount Sinai Hospital, New York, NY, USA
| | - Wesley H Bronson
- Department of Orthopedic Surgery, Mount Sinai Hospital, New York, NY, USA
| | | | - Lawrence G Lenke
- The Spine Hospital, New York-Presbyterian/Columbia University Medical Center, New York, NY, USA
| | - James D Lin
- Department of Orthopedic Surgery, Mount Sinai Hospital, New York, NY, USA
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Zhang Z, Song J, Jia S, Tian Z, Zhang Z, Zheng G, Meng C, Li N. How does the correction in lumbar lordosis affect the spinopelvic realignments in degenerative lumbar scoliosis underwent scoliosis surgery? Eur J Med Res 2023; 28:403. [PMID: 37798787 PMCID: PMC10552202 DOI: 10.1186/s40001-023-01339-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 09/02/2023] [Indexed: 10/07/2023] Open
Abstract
BACKGROUND To evaluate the effects of correction in lumbar lordosis (LL) that have on full-body realignments in patients with degenerative lumbar scoliosis (DLS) who had undergone long sacroiliac fusion surgery. METHODS A multi-center retrospective study including 88 DLS patients underwent the surgical procedure of long sacroiliac fusion with instrumentations was performed. Comparisons of radiographic and quality-of-life (QoL) data among that at the pre-operation, the 3rd month and the final follow-up were performed. The correlations between the LL correction and the changes in other spinopelvic parameters were explored using Pearson-correlation linear analysis and linear regression analysis. The correlation coefficient (r) and the adjusted r2 were calculated subsequently. RESULTS All radiographic and QoL data improved significantly (P < 0.001) after the surgical treatments. The LL correction correlated (P < 0.001) with the changes in the sacral slope (SS, r = 0.698), pelvic tilt (PT, r = -0.635), sagittal vertical axis (SVA, r = -0.591), T1 pelvic angle (TPA, r = -0.782), and the mismatch of pelvic incidence minus lumbar lordosis (PI-LL, r = -0.936), respectively. Moreover, LL increased by 1° for each of the following spinopelvic parameter changes (P < 0.001): 2.62° for SS (r2 = 0.488), -4.01° for PT (r2 = 0.404), -4.86° for TPA (r2 = 0.612), -2.08° for the PI-LL (r2 = 0.876) and -15.74 mm for SVA (r2 = 0.349). Changes in the thoracic kyphosis (r = 0.259) and pelvic femur angle (r = 0.12) were independent of the LL correction, respectively. CONCLUSIONS LL correction correlated significantly to the changes in spinopelvic parameters; however, those independent variables including the thoracic spine and hip variables probably be remodeled themselves to maintain the full-body balance in DLS patients underwent the correction surgery.
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Affiliation(s)
- Zifang Zhang
- Affiliated Hospital of Jining Medical University, Jining Medical University, Guhuai Road 89, Jining, 272007, China
- Department of Orthopedics, Shandong University of Traditional Chinese Medicine, Jingshi Road 16369, Jinan, 250014, China
| | - Jianing Song
- Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China
| | - Shu Jia
- Affiliated Hospital of Jining Medical University, Jining Medical University, Guhuai Road 89, Jining, 272007, China
| | - Zhikang Tian
- Affiliated Hospital of Jining Medical University, Jining Medical University, Guhuai Road 89, Jining, 272007, China
| | - Zhenyu Zhang
- Affiliated Hospital of Jining Medical University, Jining Medical University, Guhuai Road 89, Jining, 272007, China
| | - Guoquan Zheng
- The Spine Surgery, The first medical center of the Chinese PLA General Hospital, Beijing, China.
| | - Chunyang Meng
- Affiliated Hospital of Jining Medical University, Jining Medical University, Guhuai Road 89, Jining, 272007, China.
| | - Nianhu Li
- Department of Orthopedics, Shandong University of Traditional Chinese Medicine, Jingshi Road 16369, Jinan, 250014, China.
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Campbell PG, Nunley PD. The Lumbosacral Fractional Curve in Adult Degenerative Scoliosis. Neurosurg Clin N Am 2023; 34:537-544. [PMID: 37718100 DOI: 10.1016/j.nec.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
Spine surgeons are often faced with a profoundly difficult challenge in surgically treating adult degenerative scoliosis. Deformity correction surgery is complicated by the difficulty in offering extensive surgical corrections to the elderly, complication-prone population it commonly affects. As spine surgeons attempt to offer minimally invasive solutions to this disease process, the need for fusion of the fractional curve at L4, L5, and S1 may be discounted. A treatment strategy to identify, address, and treat the fractional curve with either open or minimally invasive techniques can lead to improved patient outcomes and decrease revision rates in this complicated pathologic process.
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Affiliation(s)
- Peter G Campbell
- Spine Institute of Louisiana, 1500 Line Avenue, Shreveport, LA 71101, USA.
| | - Pierce D Nunley
- Spine Institute of Louisiana, 1500 Line Avenue, Shreveport, LA 71101, USA
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Hu S, Lu R, Zhu Y, Zhu W, Jiang H, Bi S. Application of Medical Image Navigation Technology in Minimally Invasive Puncture Robot. SENSORS (BASEL, SWITZERLAND) 2023; 23:7196. [PMID: 37631733 PMCID: PMC10459274 DOI: 10.3390/s23167196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023]
Abstract
Microneedle puncture is a standard minimally invasive treatment and surgical method, which is widely used in extracting blood, tissues, and their secretions for pathological examination, needle-puncture-directed drug therapy, local anaesthesia, microwave ablation needle therapy, radiotherapy, and other procedures. The use of robots for microneedle puncture has become a worldwide research hotspot, and medical imaging navigation technology plays an essential role in preoperative robotic puncture path planning, intraoperative assisted puncture, and surgical efficacy detection. This paper introduces medical imaging technology and minimally invasive puncture robots, reviews the current status of research on the application of medical imaging navigation technology in minimally invasive puncture robots, and points out its future development trends and challenges.
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Affiliation(s)
| | - Rongjian Lu
- School of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China; (S.H.)
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Xu D, Gan K, Zhao X, Lian L, Hu X, Luo N, Ma W. Comparison of staged lateral lumbar interbody fusion combined two-stage posterior screw fixation and two osteotomy strategies for adult degeneration scoliosis: a retrospective comparative study. BMC Musculoskelet Disord 2023; 24:387. [PMID: 37189086 DOI: 10.1186/s12891-023-06449-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 04/20/2023] [Indexed: 05/17/2023] Open
Abstract
AIMS The commonly used treatments of adult degeneration scoliosis (ADS) were posterior long segment screw fixation with osteotomies. Recently, lateral lumbar intervertebral fusion combined two-stage posterior screw fixation (LLIF + PSF) as a new strategy without osteotomy. Herein, this study aimed to compare the clinical and radiological outcomes among LLIF + PSF and pedicle subtraction osteotomy (PSO), posterior column osteotomies (PCO). METHODS Totals of 139 ADS patients underwent operation with 2 years longer follow-up visit between January 2013 and January 2018 in Ningbo No.6 Hospital were enrolled into this study. 58 patients were included in PSO group, 45 in PCO group and 36 in LLIF + PSF group, The clinical and radiological data were reviewed from medical records. Baseline characteristic, perioperative radiological data (sagittal vertical axis (SVA), coronal balance (CB), Cobb angle of Mian curve (MC), Lumbar lordosis (LL), pelvic tilt (PT) and pelvic incidence-lumbar lordosis mismatch (PI-LL)), clinical outcomes (VAS of back and leg, Oswestry disability index (ODI) and Scoliosis Research Society 22-question Questionnaire (SRS-22)) and complications were evaluated and compared. RESULT There were no significantly difference in baseline characteristics, preoperative radiological parameters and clinical outcomes among three groups. LLIF + PSF group was significantly shorter in operation time than other two groups (P < 0.05), whereas significant longer hospital stay was observed in LLIF + PSF group (P < 0.05). As for radiological parameters, LLIF + PSF group had significantly improvement in SVA, CB, MC, LL and PI-LL (P < 0.05). Moreover, LLIF + PSF group achieved significantly less correction loss in SVA, CB and PT than PSO and PCO group (1.5 ± 0.7 VS 2.0 ± 0.9 VS 2.2 ± 0.8, P < 0.05; 1.0 ± 0.4 VS 1.3 ± 0.5 VS 1.1 ± 0.7, P < 0.05 and 4.2 ± 2.8 VS 7.2 ± 3.1 VS 6.0 ± 2.8, P < 0.05). Significantly recovery in VAS of back and leg, ODI score and SRS-22 were found among all groups, however, LLIF + PSF shown significant better clinical therapy maintain at follow-up visit than other two groups (P < 0.05). There were no significantly difference in complications among groups (P = 0.66). CONCLUSION Lateral lumbar interbody fusion combined two-stage posterior screw fixation (LLIF + PSF) can achieve comparable clinical therapy for adult degeneration scoliosis as osteotomy strategies. However, furthermore more studies need be taken for verifying the effect of LLIF + PSF in the future.
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Grants
- LQ21H060002 the Natural Science Foundation of Zhejiang, China
- LQ21H060002 the Natural Science Foundation of Zhejiang, China
- LQ21H060002 the Natural Science Foundation of Zhejiang, China
- LQ21H060002 the Natural Science Foundation of Zhejiang, China
- 2021S105 Social Welfare Research Key Project of Ningbo, China
- 2021S105 Social Welfare Research Key Project of Ningbo, China
- 2021S105 Social Welfare Research Key Project of Ningbo, China
- 2021S105 Social Welfare Research Key Project of Ningbo, China
- 2022J251 the Natural Science Foundation of Ningbo, China
- 2022J251 the Natural Science Foundation of Ningbo, China
- 2022J251 the Natural Science Foundation of Ningbo, China
- 2022YPT10 the Natural Science Foundation of Yuyao, China
- 2022YPT10 the Natural Science Foundation of Yuyao, China
- 2021AS0068 Yinzhou District the second batch of agricultural and social science and technology projects
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Affiliation(s)
- Dingli Xu
- Health Science Center, Ningbo University Zhejiang, Ningbo, China
| | - Kaifeng Gan
- Orthopedic Department, The Affiliated Lihuili Hospital of Ningbo University, Ningbo, China.
| | - Xuchen Zhao
- Health Science Center, Ningbo University Zhejiang, Ningbo, China
| | - Leidong Lian
- Health Science Center, Ningbo University Zhejiang, Ningbo, China
| | - Xudong Hu
- Orthopedic Department, Ningbo No.6 Hospital, Zhejiang, Ningbo, China
| | - Ni Luo
- Orthopedic Department, Ningbo No.6 Hospital, Zhejiang, Ningbo, China
| | - Weihu Ma
- Orthopedic Department, Ningbo No.6 Hospital, Zhejiang, Ningbo, China.
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Lai O, Li H, Chen Q, Hu Y, Chen Y. Comparison of staged LLIF combined with posterior instrumented fusion with posterior instrumented fusion alone for the treatment of adult degenerative lumbar scoliosis with sagittal imbalance. BMC Musculoskelet Disord 2023; 24:260. [PMID: 37013494 PMCID: PMC10069051 DOI: 10.1186/s12891-023-06340-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 03/20/2023] [Indexed: 04/05/2023] Open
Abstract
BACKGROUND To retrospectively compare the clinical and radiological outcomes of staged lateral lumbar interbody fusion (LLIF) combined with posterior instrumented fusion(PIF)with PIF alone for the treatment of adult degenerative lumbar scoliosis (ADLS) with sagittal imbalance. METHODS ADLS patients with sagittal imbalance underwent corrective surgery were included and divided into staged group (underwent multilevel LLIF in the first-stage and PIF in the second-stage) and control group (PIF alone). The clinical and radiological outcomes were evaluated and compared between the two groups. RESULTS Forty-five patients with an average age of 69.7±6.3 years were enrolled, including 25 in the staged group and 20 in the control group. Compared with preoperative values, patients in both groups achieved significant improvement in terms of ODI, VAS back, VAS leg and spinopelvic parameters after surgery, which were maintained well during the follow-up period. Compared with control group, total operative time in the staged group was longer, but the amounts of blood loss and blood transfusion were reduced. The average posterior fixation segments were 6.20±1.78 in the staged group and 8.25±1.16 in the control group (P<0.01), respectively. Posterior column osteotomy (PCO) was performed in 9 patients (36%) in the staged group, while PCO and/or pedicle subtraction osteotomy were performed in 15 patients (75%) in the control group (P<0.01). There was no difference in complications between the two groups. CONCLUSION Both surgical strategies were effective for the treatment of ADLS with sagittal imbalance. However, staged treatment was less invasive, which reduced the number of posterior fixation segments and osteotomy requirement.
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Affiliation(s)
- Oujie Lai
- Department of Spine Surgery, Ningbo No.6 Hospital, Ningbo, Zhejiang, People's Republic of China
| | - Hao Li
- Department of Spine Surgery, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People's Republic of China.
| | - Qixing Chen
- Department of Spine Surgery, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People's Republic of China
| | - Yong Hu
- Department of Spine Surgery, Ningbo No.6 Hospital, Ningbo, Zhejiang, People's Republic of China
| | - Yunling Chen
- Department of Spine Surgery, Ningbo No.6 Hospital, Ningbo, Zhejiang, People's Republic of China
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Zhu F, Zhang Y, Wang G, Ning Y, Leng X, Huang B. Posterior Multisegment Apical Convex plus Concave Intervertebral Release Combined with Posterior Column Osteotomy for the Treatment of Rigid Thoracic/Thoracolumbar Scoliosis. World Neurosurg 2023; 170:43-53. [PMID: 36442784 DOI: 10.1016/j.wneu.2022.11.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Intervertebral release (IVR) in the apical region is critical for full release of a rigid spine. Previous studies have mainly reported IVR techniques using an anterior approach or posterior apical convex IVR. We first report the surgical procedure of posterior multisegment apical convex plus concave IVR combined with posterior column osteotomy (PCO) for treating rigid thoracic/thoracolumbar scoliosis. METHODS This study retrospectively analyzed clinical, radiologic outcomes and technique notes of 18 patients with rigid scoliosis treated with posterior multisegment convex plus concave IVR combined with PCO. RESULTS The preoperative, postoperative, and final follow-up mean sagittal Cobb angles of the main curve were 75.2° (58.7°-110.2°), 18.4° (9°-35.1°), and 19.0° (8.2°-36.3°), respectively. The mean correction rate was 75.3% (66.7%-86.7%). In cases of thoracolumbar kyphosis, the preoperative, postoperative, and final follow-up mean sagittal Cobb angles were 45.7° (40.5°-52.6°), 18.8° (10.2°-27.5°), and 19.8° (11.1°-29°), respectively. The mean correction rate was 57% (42.1%-72.6%). The mean axial vertebral rotation (AVR) in the IVR region was 24.4° (14.3°-46.3°) preoperatively and was corrected to 10.9° (10.9°-26.6°) postoperatively. The mean correction rate for AVR was 55.9% (41.1%-78.6%). The coronal and sagittal Cobb angles and AVR postoperatively were significantly lower than those preoperatively (P < 0.001). This case series reported 2 cases of pleural effusion and 1 case of wound infection. CONCLUSIONS Single posterior multilevel apical convex plus concave IVR combined with PCO is a safe and effective surgical method for treating rigid thoracic/thoracolumbar scoliosis that does not need 3-column osteotomy.
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Affiliation(s)
- Fengzhao Zhu
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Yaqing Zhang
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Guanzhong Wang
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Ya Ning
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Xue Leng
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Bo Huang
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China.
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Qiu H, Chu TW, Niu XJ, Zhang Y, Yang SZ, Chen WG. Multisegment transforaminal lumbar interbody fusion (TLIF) combined with Ponte osteotomy in degenerative lumbar scoliosis (DLS) surgery: a minimum of five years' follow-up. INTERNATIONAL ORTHOPAEDICS 2022; 46:2897-2906. [PMID: 36153365 PMCID: PMC9674761 DOI: 10.1007/s00264-022-05572-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 08/31/2022] [Indexed: 01/22/2023]
Abstract
PURPOSE To evaluate the long-term clinical outcomes of degenerative lumbar scoliosis (DLS) with the administration of multisegment transforaminal lumbar interbody fusion (TLIF) combined with Ponte osteotomy long-level fixation fusion, as well as to identify the factors affecting health-related quality of life (HRQOL). METHODS This was a retrospective single-centre study involving comprehensive clinical data. The Oswestry Disability Index (ODI), visual analog scale (VAS) outcomes, and Scoliosis Research Society (SRS-22) questionnaire were recorded to assess HRQOL. A correlation analysis was performed to determine the association between HRQOL and radiographic parameters. RESULTS A total of 41 consecutive patients (15 males and 26 females) met the inclusion criteria with a follow-up of 8.62 ± 1.20 years. Factors associated with HRQOL were significantly improved post-operation. Global sagittal parameters, including the sagittal vertebral axis (SVA) and T1 pelvic angle (TPA), and local parameters, including apical vertebral translation (AVT) and apical vertebral rotation (AVR), were significantly improved at the last follow-up. Significantly strong correlations between each clinical and radiographic parameter were demonstrated. Moreover, a multiple linear regression analysis demonstrated that the differences in AVT and AVR were significantly correlated with the difference in lumbar lordosis (LL), which was significantly correlated with the differences in SVA and TPA. CONCLUSION The surgical treatment of DLS with multisegment TLIF accompanied by Ponte osteotomy and long-level fixations improved the quality of life of patients with a long-term effect. AVR correction is an important factor for LL restoration that significantly correlates with improvements in the sagittal balance parameters SVA and TPA, which are key factors for guaranteeing good HRQOL.
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Affiliation(s)
- Hao Qiu
- grid.417298.10000 0004 1762 4928Department of Orthopedics, Xinqiao Hospital, Army Medical University, No. 83, Xinqiao Street, Shapingba District, Chongqing, People’s Republic of China 400037
| | - Tong-wei Chu
- grid.417298.10000 0004 1762 4928Department of Orthopedics, Xinqiao Hospital, Army Medical University, No. 83, Xinqiao Street, Shapingba District, Chongqing, People’s Republic of China 400037
| | - Xiao-Jian Niu
- Department of Orthopedics, 907 Hospital of The Joint Logistics Team, Nanping, Fujian Province People’s Republic of China 353000
| | - Ying Zhang
- grid.417298.10000 0004 1762 4928Department of Orthopedics, Xinqiao Hospital, Army Medical University, No. 83, Xinqiao Street, Shapingba District, Chongqing, People’s Republic of China 400037
| | - Si-Zhen Yang
- grid.417298.10000 0004 1762 4928Department of Orthopedics, Xinqiao Hospital, Army Medical University, No. 83, Xinqiao Street, Shapingba District, Chongqing, People’s Republic of China 400037
| | - Wu-Gui Chen
- Department of Spinal Surgery, Mindong Hospital, Ningde, Fujian Province People’s Republic of China 355000
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Bowden D, Michielli A, Merrill M, Will S. Systematic review and meta-analysis for the impact of rod materials and sizes in the surgical treatment of adult spine deformity. Spine Deform 2022; 10:1265-1278. [PMID: 35904725 PMCID: PMC9579115 DOI: 10.1007/s43390-022-00556-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 07/09/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE To assess clinical and safety outcomes associated with different rod materials and diameters in adult spinal deformity (ASD) surgery. METHODS A systematic literature review and meta-analysis evaluated ASD surgery using pedicle screw fixation systems with rods of different materials and sizes. Postoperative outcomes (i.e., Cobb, sagittal vertical axis, and pelvic tilt angle) and complications (i.e., pseudarthrosis and rod breakage) were assessed. Random effects models (REMs) pooled data for outcomes reported in ≥ 2 studies. RESULTS Among 50 studies evaluating ASD surgery using pedicle screw fixation systems, 17 described rod material/diameter. Postoperative outcomes did not statistically differ between cobalt-chromium (CoCr) vs. titanium (Ti) rods (n = 2 studies; mean [95% confidence interval (CI)] sagittal vertical axis angle: CoCr 37.00° [18.58°-55.42°] and Ti 32.58° [24.62°-40.54°]; mean [95% CI] pelvic tilt angle: CoCr 26.20° [22.87°-29.53°] and Ti 20.15° [18.0°-22.31°]). The pooled proportion (95% CI) of pseudarthrosis was 15% (7-22%) for CoCr and 12% (- 8-32%) for stainless steel (SS) (n = 2 studies each; Chi2 = 0.07, p = 0.79). The pooled proportion (95% CI) of broken rods was 12% (1-22%) for Ti (n = 3 studies) and 10% (2-19) for CoCr (n = 1 study). Among 6.0-6.35 mm rods, the pooled (95% CI) postoperative Cobb angle (n = 2) was 12.01° (9.75°-14.28°), sagittal vertical axis angle (n = 4) was 35.32° (30.02°-40.62°), and pelvic tilt angle was 21.11° (18.35°-23.86°). CONCLUSIONS For ASD patients undergoing posterior fixation and fusion, there are no statistically significant differences in postoperative outcomes or complications among rods of varying materials and diameters. Benchmark postsurgical outcomes and complication rates by rod material and diameter are provided. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Dawn Bowden
- DePuy Synthes Spine, Johnson and Johnson Medical Devices, 325 Paramount Drive, Raynham, MA, 02767, USA.
| | - Annalisa Michielli
- DePuy Synthes Spine, Johnson and Johnson Medical Devices, 325 Paramount Drive, Raynham, MA, 02767, USA
| | - Michelle Merrill
- DePuy Synthes Spine, Johnson and Johnson Medical Devices, 325 Paramount Drive, Raynham, MA, 02767, USA
| | - Steven Will
- DePuy Synthes Spine, Johnson and Johnson Medical Devices, 325 Paramount Drive, Raynham, MA, 02767, USA
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Zhang Z, Qi D, Wang T, Wang Z, Wang Y. Spine-Pelvis-Hip Alignments in Degenerative Spinal Deformity Patients and Associated Procedure of One-Stage Long-Fusion with Multiple-Level PLIF or Apical-Vertebra Three Column Osteotomy-a Clinical and Radiographic Analysis Study. Orthop Surg 2021; 13:2008-2017. [PMID: 34541786 PMCID: PMC8528996 DOI: 10.1111/os.13059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 05/03/2021] [Accepted: 05/05/2021] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE To explore the spine-pelvis-hip alignments in degenerative spinal deformity (DSD) patients, and compare the outcomes in the procedure of long-fusion with posterior lumbar inter-body fusion (PLIF) or single-level three-column osteotomy (STO) at lower lumbar level (LLL, L3 -S1 ) and thoracolumbar levels (TLL, T10 -L2 ) for those patients. METHODS This is a retrospective study. Following institutional ethics approval, a total of 83 patients (Female, 67; Male, 16) with DSD underwent long-fusion with PLIF or STO surgery between March 2015 and December 2017 were reviewed. All of those patients were assigned into LLL and TLL groups. The average age at surgery was 65.2 years (SD, 8.1). Demographic (age, gender, BMI, and comorbidities), radiographs (both coronal and sagittal parameters) and health-related quality of life (HRQOL) assessments were documented. The radiographic parameters and HRQOL-related measurements at pre- and post-operation were compared with paired-samples t test, and those variables in the two groups were analyzed using an independent-sample t test. The relationships between pelvic incidence (PI) and other sagittal parameters were investigated with Pearson correlation analysis. The Pearson χ2 or Fisher's exact was carried out for comparison of gender, incidence of comorbidities and post-operative complications. RESULTS There were 53 and 30 patients in the LLL and TLL groups respectively. Those spino-pelvic radiographic parameters had significant improvements after surgeries (P < 0.001). The patients in the two group with different pre-operative thoracolumbar kyphosis (TLK, P = 0.003), PI (P = 0.02), and mismatch of PI minus lumbar lordosis (PI-LL, P = 0.01) had comparable post-operative radiographic parameters except PI (P = 0.04) and pelvic-femur angle (PFA, P = 0.02). Comparing the changes of those spine-pelvic-hip data during surgeries, the corrections of TLK in TLL group were significant larger (P = 0.004). Pearson correlation analysis showed that there were negative relationship between PI and TLK (r = -0.302, P = 0.005), positive relationship between PI and LL (r = 0.261, P = 0.016) at pre-operation. Those patients underwent the surgical procedure that long-segment instrumentation and fusion with STO would have higher incidence of complications involving longer operative timing (P = 0.018), more blood loss (P < 0.001), revision surgery (P = 0.008), and cerebrospinal fluid leakage (P = 0.001). All the HRQOL scores significantly improved at final follow-up (P < 0.001), with no difference of intra-group. CONCLUSION Patients suffered de-novo scoliosis or hyper-kyphosis with low PI would be vulnerable to significant thoracolumbar degeneration, and have more changes of spine-pelvis-hip data after long-fusion surgery, however, those with high PI would be closed to significant lumbar degeneration. Although spine-pelvis-hip alignments in DSD patients can be restored effectively after long-fusion with PLIF or STO, the incidence of complications in patients underwent STO was significant higher than that in patients performed multi-level PLIF.
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Affiliation(s)
- Zi‐fang Zhang
- The Medical College of Nankai UniversityTianjinChina
- The Spine SurgeryThe First Medical Center of the Chinese PLA General HospitalBeijingChina
| | - Deng‐bin Qi
- The Spine SurgeryThe First Medical Center of the Chinese PLA General HospitalBeijingChina
| | - Tian‐hao Wang
- The Spine SurgeryThe First Medical Center of the Chinese PLA General HospitalBeijingChina
| | - Zheng Wang
- The Spine SurgeryThe First Medical Center of the Chinese PLA General HospitalBeijingChina
| | - Yan Wang
- The Medical College of Nankai UniversityTianjinChina
- The Spine SurgeryThe First Medical Center of the Chinese PLA General HospitalBeijingChina
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11
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Improvement of coronal alignment in fractional low lumbar curves with the use of anterior interbody devices. Spine Deform 2021; 9:1443-1447. [PMID: 33740230 DOI: 10.1007/s43390-021-00328-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 03/10/2021] [Indexed: 10/21/2022]
Abstract
STUDY DESIGN Retrospective chart review. OBJECTIVES To determine if the addition of an anterior lumbar interbody fusion (ALIF) improves the fractional curve in adult spinal deformity correction when compared to posterior surgery alone. ALIF is commonly advocated to improve lordosis and fusion in adult deformity surgery. Improved fractional curve correction may help level the pelvis and minimize proximal malalignment. METHODS Patients undergoing thoracolumbar fusion to the pelvis with S2AI screws for deformity were identified and stratified into patients who had an ALIF as part of their deformity correction procedure (ALIF + PSF), and those who had a posterior approach alone. The posterior approach (PSF) includes patients who had a posterolateral fusion with or without a transforaminal lumbar interbody fusion (TLIF). Radiographic parameters measured included pre-op and post-op fractional coronal curve Cobb angle, lumbar lordosis, pelvic tilt, pelvic incidence and sacral slope, major Cobb angle, coronal and sagittal SVA. RESULTS There were 31 cases in the ALIF + PSF group and 28 in the PSF group. Baseline demographic characteristics of the two groups were similar. Mean pre-op fractional coronal Cobb (18.3° vs 13.4°, p = 0.027) was larger in the ALIF + PSF group, whereas lumbar lordosis (31.0° vs 33.6°, p = 0.487) and pelvic parameters were similar between the two groups. Post-op lumbar lordosis was similar (48.2° vs 43.0°, p = 0.092). Greater fractional coronal curve correction was achieved in the ALIF + PSF group (67%) compared to the PSF group (36%) with a smaller post-op fractional coronal curve in the ALIF + PSF group (6.1°) compared to the PSF group (8.6°, p = 0.053). CONCLUSION There is a greater correction of the fractional curve in the ALIF + PSF group compared with the PSF group. While this may not be the primary indication for ALIF, it is a benefit which may facilitate overall deformity correction and leveling of the pelvis.
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12
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Efficacy of lateral lumbar interbody fusion combined with posterior spinal fusion compared with three-column osteotomy for adult spinal deformity with severe lumbar sagittal deformity. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2021; 32:973-979. [PMID: 34228215 DOI: 10.1007/s00590-021-03068-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 06/28/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE The clinical and radiological results of adult spinal deformity (ASD) patients with a severe lumbar sagittal deformity undergoing multilevel lateral lumbar interbody fusion (LLIF) + posterior spinal fusion (PSF) were compared to patients undergoing three-column osteotomy (3CO). METHODS We defined severe lumbar sagittal deformity as fulcrum backward bending (FBB) pelvic incidence minus lumbar lordosis (PI-LL) ≧ 20 degrees. A total of twenty-five patients with an ASD were enrolled between 2013 and 2018. Fifteen patients were in the LLIF + PSF group, and ten patients were in the 3CO group. We evaluated patient demographics, clinical outcomes, and radiographic parameters such as the Cobb angle and spinopelvic parameters from standing X-ray films in each group. RESULTS The LLIF + PSF group had a significantly shorter follow-up time than the 3CO group. Postoperatively, the LLIF + PSF group had significantly lower PI-LL and a shorter sagittal vertical axis than the 3CO group. Postoperative PI-LL changes in the LLIF + PSF group were significantly smaller than those in the 3CO group. There were no differences in other patient demographics, radiographic parameters, or clinical outcomes between the groups. CONCLUSION Multilevel LLIF + PSF improved the PI-LL and SVA more than did 3CO for ASD patients with severe lumbar sagittal deformity. This indicated that the multilevel LLIF with open PSF can provide good clinical outcomes even in cases with severe lumbar sagittal deformity such as large FBB PI-LL in which 3CO techniques usually are needed.
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Buell TJ, Christiansen PA, Nguyen JH, Chen CJ, Yen CP, Shaffrey CI, Smith JS. Coronal Correction Using Kickstand Rods for Adult Thoracolumbar/Lumbar Scoliosis: Case Series With Analysis of Early Outcomes and Complications. Oper Neurosurg (Hagerstown) 2021; 19:403-413. [PMID: 32357222 DOI: 10.1093/ons/opaa073] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 02/02/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND The "kickstand rod technique" has been recently described for achieving and maintaining coronal correction in adult spinal deformity (ASD). Kickstand rods span scoliotic lumbar spine from the thoracolumbar junction proximally to a "kickstand iliac screw" distally. Using the iliac wing as a base, kickstand distraction produces powerful corrective forces. Limited literature exists for this technique, and its associated outcomes and complications are unknown. OBJECTIVE To assess alignment changes, early outcomes, and complications associated with kickstand rod distraction for ASD. METHODS Consecutive ASD patients treated with kickstand distraction at our institution were retrospectively analyzed. RESULTS The cohort comprised 19 patients (mean age: 67 yr; 79% women; 63% prior fusion) with mean follow-up 21 wk (range: 2-72 wk). All patients had posterior-only approach surgery with tri-iliac fixation (third iliac screw for the kickstand) for mean fusion length 12 levels. Three-column osteotomy and lumbar transforaminal lumbar interbody fusion were performed in 5 (26%) and 15 (79%) patients, respectively. Postoperative alignment improved significantly (coronal balance: 8 to 1 cm [P < .001]; major curve: 37° to 12° [P < .001]; fractional curve: 20° to 10° [P < .001]; sagittal balance: 11 to 4 cm [P < .001]; pelvic incidence to lumbar lordosis mismatch: 38° to 9° [P < .001]). Pain Numerical Rating Scale scores improved significantly (back: 7.2 to 4.2 [P = .001]; leg: 5.9 to 1.7 [P = .001]). No instrumentation complications occurred. Motor weakness persisted in 1 patient. There were 3 reoperations (1-PJK, 1-wound dehiscence, and 1-overcorrection). CONCLUSION Among 19 ASD patients treated with kickstand rod distraction, alignment, and back/leg pain improved significantly following surgery. Complication rates were reasonable.
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Affiliation(s)
- Thomas J Buell
- Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia.,Department of Neurological Surgery, Auckland City Hospital, Auckland, New Zealand
| | - Peter A Christiansen
- Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - James H Nguyen
- Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Ching-Jen Chen
- Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Chun-Po Yen
- Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Christopher I Shaffrey
- Department of Neurosurgery, Duke University Medical Center, Durham, North Carolina.,Department of Orthopedic Surgery, Duke University Medical Center, Durham, North Carolina
| | - Justin S Smith
- Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
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Correction of a severe coronal malalignment in adult spinal deformity using the "kickstand rod" technique as primary surgery. J Orthop 2021; 25:252-258. [PMID: 34099955 DOI: 10.1016/j.jor.2021.05.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 05/16/2021] [Indexed: 01/05/2023] Open
Abstract
Objective Adult spinal deformity (ASD) is a growing healthcare issue due to the aging population. A satisfying spine balance in both sagittal and coronal planes is achieved through surgery. Only few studies about the coronal alignment correction with the kickstand rod were reported in the literature, until now. The aim of the present study was to describe clinical and radiological outcomes of the Kickstand rod (KR) technique in a series of ASD patients with severe coronal malalignment after 1 year of follow-up. Material and methods Six patients affected by ASD with severe CM who underwent surgery between 2018 and 2019 were retrospectively analyzed. The mean follow up was 14 months. All patients had posterior-only approach with long pelvic-thoracic fixation according to the Kickstand rod technique. Results Postoperative alignment and pain numerical rating scale scores significantly improved. No instrumentation complications occurred. A coronal alignment improvement from a mean of 163 mm preoperatively to a mean of 32 mm postoperatively was observed. Conclusion KR technique appears to be a safe and efficient way for coronal and sagittal imbalance correction in ASD patients. Although technically demanding, by using this technique good and stable radiological and functional outcomes are achieved especially in selected patients.
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15
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Orientation of L4 coronal tilt relative to C7 plumb line as a predictor for postoperative coronal imbalance in patients with degenerative lumbar scoliosis. Sci Rep 2020; 10:16148. [PMID: 32999384 PMCID: PMC7527333 DOI: 10.1038/s41598-020-73352-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 09/14/2020] [Indexed: 11/29/2022] Open
Abstract
The study design is case–control. To evaluate the impact of preoperative coronal patterns based on the relationship between orientation of L4 coronal tilt and C7 plumb line on immediate postoperative coronal imbalance in degenerative lumbar scoliosis (DLS) patients. Although lumbosacral fractional curve has been long stressed in correction surgery of DLS, there is paucity of literature focusing on preoperative coronal pattern based on the relationship between orientation of L4 coronal tilt and C7 plumb line and its impact on immediate postoperative coronal imbalance in DLS patients. A consecutive series of DLS patients who underwent deformity correction surgery via posterior-only approach were reviewed. According to the relationship between orientation of L4 coronal tilt and C7 plumb line preoperatively, a total of 77 DLS patients who underwent posterior spinal corrective surgery were classified into: 1. Coronal consistency pattern, L4 coronally tilts toward C7 plumb line; 2. Coronal opposition pattern, L4 coronally tilts opposite C7 plumb line. Coronal imbalance was defined as global coronal malalignment (GCM) on either side more than or equal to 20 mm. Whole-spine standing radiographs of both pattern groups were assessed preoperatively and postoperatively. There were 37 patients with coronal consistency pattern and 40 patients with coronal opposition pattern. Compared to patients with coronal opposition pattern, patients with coronal consistency pattern had significantly higher postoperative GCM (P = 0.028), lower amount of GCM correction (P = 0.013) and higher incidence of postoperative coronal imbalance (P = 0.001); further logistic regression analysis revealed coronal consistency pattern was associated with increased odds of postoperative coronal imbalance (odds ratio: 5.981; 95% confidence interval 2.029–17.633; P = 0.001). DLS patients with preoperative coronal consistency pattern carried greater risk for immediate postoperative coronal imbalance following posterior long correction surgery. Level of evidence 3
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16
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Iwamae M, Matsumura A, Namikawa T, Kato M, Hori Y, Yabu A, Sawada Y, Hidaka N, Nakamura H. Surgical Outcomes of Multilevel Posterior Lumbar Interbody Fusion versus Lateral Lumbar Interbody Fusion for the Correction of Adult Spinal Deformity: A Comparative Clinical Study. Asian Spine J 2020; 14:421-429. [PMID: 32693444 PMCID: PMC7435311 DOI: 10.31616/asj.2019.0357] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 03/23/2020] [Indexed: 11/23/2022] Open
Abstract
Study Design A retrospective case control study. Purpose The purpose of this study was to compare the surgical outcomes of multilevel lateral lumbar interbody fusion (LIF) and multilevel posterior lumbar interbody fusion (PLIF) in the surgical treatment of adult spinal deformity (ASD) and to evaluate the sagittal plane correction by combining LIF with posterior-column osteotomy (PCO). Overview of Literature The surgical outcomes between multilevel LIF and multilevel PLIF in ASD patients remain unclear. Methods We retrospectively reviewed 31 ASD patients who underwent multilevel LIF combined with PCO (LIF group, n=14) or multilevel PLIF (PLIF group, n=17) and with a minimum 2-year follow-up. In the comparison between LIF and PLIF groups, their mean age at surgery was 69.4 vs. 61.8 years while the mean follow-up period was 29.2 vs. 59.3 months. We evaluated the transition of pelvic incidence–lumbar lordosis (PI–LL) and disc angle (DA) in the LIF group, in fulcrum backward bending (FBB), after LIF and after posterior spinal fusion (PSF) with PCO. The spinopelvic radiographic parameters were compared between LIF and PLIF groups. Results Compared with the PLIF group, the LIF group had less blood loss and comparable surgical outcomes with respect to radiographic data, health-related quality of life scores and surgical time. In the LIF group, the mean DA and PI–LL were unchanged after LIF (DA, 5.8°; PI–LL, 15°) compared with the values using FBB (DA, 4.3°; PI–LL, 15°) and improved significantly after PSF with PCO (DA, 8.1°; PI–LL, 0°). Conclusions In the surgical treatment of ASD, multilevel LIF is less invasive than multilevel PLIF and combination of LIF and PCO would be necessary for optimal sagittal correction in patients with rigid deformity.
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Affiliation(s)
- Masayoshi Iwamae
- Department of Orthopaedic Surgery, Osaka City General Hospital, Osaka, Japan
| | - Akira Matsumura
- Department of Orthopaedic Surgery, Osaka City General Hospital, Osaka, Japan
| | - Takashi Namikawa
- Department of Orthopaedic Surgery, Osaka City General Hospital, Osaka, Japan
| | - Minori Kato
- Department of Orthopaedic Surgery, Osaka City General Hospital, Osaka, Japan
| | - Yusuke Hori
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Akito Yabu
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yuta Sawada
- Department of Orthopaedic Surgery, Eniwa Hospital, Eniwa, Japan
| | - Noriaki Hidaka
- Department of Orthopaedic Surgery, Osaka City General Hospital, Osaka, Japan
| | - Hiroaki Nakamura
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
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17
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Wang H, Li W. Multilevel extended posterior column osteotomy plus unilateral cage strutting for degenerative lumbar kyphoscoliosis. INTERNATIONAL ORTHOPAEDICS 2020; 44:1375-1383. [PMID: 32440815 DOI: 10.1007/s00264-020-04632-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 05/12/2020] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To explore the surgical outcome of patients with degenerative lumbar kyphoscoliosis who underwent multilevel extended posterior column osteotomy (PCO) plus unilateral cage strutting (UCS). METHODS From Jan 2012 to Aug 2017, 23 patients with degenerative lumbar kyphoscoliosis who underwent multilevel extended PCO plus UCS technique (study group) and 13 patients who underwent asymmetrical pedicle subtraction osteotomy (PSO) technique (control group) were retrospectively reviewed; the radiological features, including coronal/sagittal deformity, and clinical evaluation including Oswestry Disability Index (ODI), visual analog scale (VAS), and Japanese Orthopedic Association (JOA) scores-lumbar were assessed before surgery and at follow-up. RESULTS All patients underwent the operation successfully. There was no difference in fusion level, blood loss, and follow-up duration between the two groups; the operation time and length of hospital stay were shorter in study group than that in control group. All patients achieved significant correction of both scoliotic and kyphotic deformity and maintained the correction at minimum of two year follow-up, without any difference in deformity correction and correction loss between the two groups. All patients got back pain and leg pain alleviation and neurological function improvement at two year follow-up, without any difference between the two groups. The incidence of complications was lower in study group than that in control group. CONCLUSION Multilevel extended PCO plus UCS procedure could achieve significant correction of scoliosis and kyphosis in the treatment of degenerative lumbar kyphoscoliosis, presenting less surgery time, lower incidence of complication, and shorter hospital stay when compared with the asymmetric PSO technique.
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Affiliation(s)
- Hui Wang
- From the orthopedic of Peking University Third Hospital, 49 Huayuan North Road, Haidian District, Beijing, 100191, China
| | - Weishi Li
- From the orthopedic of Peking University Third Hospital, 49 Huayuan North Road, Haidian District, Beijing, 100191, China.
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Baba H, Okudaira T, Yamaguchi T, Hara S, Konishi H. Rollback Imaging as a Useful Tool in the Preoperative Evaluation of Osteoporotic Vertebral Fractures. Spine Surg Relat Res 2020; 4:142-147. [PMID: 32405560 PMCID: PMC7217669 DOI: 10.22603/ssrr.2019-0066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 09/12/2019] [Indexed: 11/15/2022] Open
Abstract
Introduction When surgery is performed for osteoporotic vertebral fractures, the extent to which kyphosis can be corrected by the intraoperative position of the body is often determined by preoperative radiography in the extension position. However, patients have difficulty adopting an adequate extension position due to the pain associated with their vertebral fracture. We place a pillow beneath the fractured vertebral body before surgery and take radiographs in the supine position to evaluate the extent to which the kyphosis can be corrected. This study aimed to examine the usefulness of this imaging method by comparing postoperative radiographs with preoperative radiographs taken with a pillow placed beneath the fractured vertebral body. Methods Lateral preoperative radiographs were taken of the patients in seated flexion and extension positions and the supine position. Lateral radiographs (rollback) were also taken 5 min after placing a firm pillow 20 cm in diameter beneath the fractured vertebral body. The kyphotic angle was compared between preoperative lateral radiographs of patients in the flexion, extension, and supine positions, rollback, and postoperative lateral radiographs in the supine position. Results The mean kyphotic angle was 33.3° in the flexion position, 28.3° in the extension position, 14.8° in the supine position, and 5.6° in rollback preoperatively and 6.4° postoperatively. The preoperative kyphotic angle differed from the postoperative kyphotic angle by ≥11° in 91% and 83% of participants in the flexion and extension positions, respectively; the difference was ≤ 5° in 30% and 61% of participants in the supine position and rollback, respectively. Differences in the postoperative angle were small in the order of rollback, supine position, extension position, and flexion position. Conclusions Compared with radiographs taken in the flexion, extension, and supine positions, rollback showed little difference from postoperative radiographs, which showed almost the same angle as the intraoperative kyphotic angle.
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Affiliation(s)
- Hideo Baba
- Department of Orthopaedic Surgery, Nagasaki Rosai Hospital, Sasebo, Japan
| | - Tsuyoshi Okudaira
- Department of Orthopaedic Surgery, Nagasaki Rosai Hospital, Sasebo, Japan
| | - Takayuki Yamaguchi
- Department of Orthopaedic Surgery, Nagasaki Rosai Hospital, Sasebo, Japan
| | - Shinichiro Hara
- Department of Orthopaedic Surgery, Nagasaki Rosai Hospital, Sasebo, Japan
| | - Hiroaki Konishi
- Department of Orthopaedic Surgery, Nagasaki Rosai Hospital, Sasebo, Japan
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Sabou S, Carrasco R, Verma R, Siddique I, Mohammad S. The clinical and radiological outcomes of multilevel posterior lumbar interbody fusion in the treatment of degenerative scoliosis: a consecutive case series with minimum 2 years follow up. JOURNAL OF SPINE SURGERY 2019; 5:520-528. [PMID: 32043002 DOI: 10.21037/jss.2019.12.02] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Surgical treatment for adult degenerative scoliosis (ADS) is a complex undertaking and is associated with a high complication rate. Our aim was to evaluate the clinical and radiological outcomes, mortality and morbidity of multilevel posterior lumbar interbody fusion (MPLIF) in the treatment in ADS based on the experience of a single tertiary referral center for spinal surgery. Methods We performed a retrospective analysis of prospectively collected data of consecutive patients who had undergone multi-level posterior interbody fusion for degenerative scoliosis. We prospectively recorded patients' demographics, co-morbidities; coronal and sagittal plane deformity assessment and surgical details: number of instrumented levels, and intra-operative and postoperative complications. Functional outcomes and patient-reported complications were entered in our local spine surgery database (part of the Eurospine Spine Tango Registry) and used to collect data on functional scores and patient-reported complications preoperatively and at 6, 12 and 24 months' follow-up. Results Our study involved 13 males and 51 females with a mean age of 70.26 (range 49-90, SD 8.9). MPLIF was performed at five levels in one patient, four levels in 29 patients, three levels in 20 patients, and two levels in 14 patients. There were a total of 14 (21.87%) major, minor and mechanical complications. There were no procedure-related mortalities. The average COMI and Eq5d scores improved significantly post-surgery, and this improvement was maintained at a mean follow-up of up to two years. Conclusions Multilevel posterior interbody fusion is a safe procedure, and in selected cases can result in good clinical and radiological outcomes with improvement in patient quality of life.
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Affiliation(s)
- Silviu Sabou
- Department of Complex Spinal Surgery, Salford Royal Hospital NHS Foundation Trust, Stott Lane, Lancashire, UK
| | - Roberto Carrasco
- Division of Population Health, Health Services Research & Primary Care, Manchester, UK.,Biology, Medicine and Health (BMH), The University of Manchester, Manchester, UK
| | - Rajat Verma
- Department of Complex Spinal Surgery, Salford Royal Hospital NHS Foundation Trust, Stott Lane, Lancashire, UK
| | - Irfan Siddique
- Department of Complex Spinal Surgery, Salford Royal Hospital NHS Foundation Trust, Stott Lane, Lancashire, UK
| | - Saeed Mohammad
- Department of Complex Spinal Surgery, Salford Royal Hospital NHS Foundation Trust, Stott Lane, Lancashire, UK
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Buell TJ, Chen CJ, Nguyen JH, Christiansen PA, Murthy SG, Buchholz AL, Yen CP, Shaffrey ME, Shaffrey CI, Smith JS. Surgical correction of severe adult lumbar scoliosis (major curves ≥ 75°): retrospective analysis with minimum 2-year follow-up. J Neurosurg Spine 2019; 31:548-561. [PMID: 31226681 DOI: 10.3171/2019.3.spine1966] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 03/28/2019] [Indexed: 01/19/2023]
Abstract
OBJECTIVE Prior reports have demonstrated the efficacy of surgical correction for adult lumbar scoliosis. Many of these reports focused on mild to moderate scoliosis. The authors' objective was to report their experience and to assess outcomes and complications after deformity correction for severe adult scoliosis. METHODS The authors retrospectively analyzed consecutive adult scoliosis patients with major thoracolumbar/lumbar (TL/L) curves ≥ 75° who underwent deformity correction at their institution. Those eligible with a minimum 2 years of follow-up were included. Demographic, surgical, coronal and sagittal plane radiographic measurements, and health-related quality of life (HRQL) scores were analyzed. RESULTS Among 26 potentially eligible patients, 22 (85%) had a minimum 2 years of follow-up (range 24-89 months) and were included in the study (mean age 57 ± 11 years; 91% women). The cohort comprised 16 (73%), 4 (18%), and 2 (9%) patients with adult idiopathic scoliosis, de novo degenerative scoliosis, and iatrogenic scoliosis, respectively. The surgical approach was posterior-only and multistage anterior-posterior in 18 (82%) and 4 (18%) patients, respectively. Three-column osteotomy was performed in 5 (23%) patients. Transforaminal and anterior lumbar interbody fusion were performed in 14 (64%) and 4 (18%) patients, respectively. All patients had sacropelvic fixation with uppermost instrumented vertebra in the lower thoracic spine (46% [10/22]) versus upper thoracic spine (55% [12/22]). The mean fusion length was 14 ± 3 levels. Preoperative major TL/L and lumbosacral fractional (L4-S1) curves were corrected from 83° ± 8° to 28° ± 13° (p < 0.001) and 34° ± 8° to 13° ± 6° (p < 0.001), respectively. Global coronal and sagittal balance significantly improved from 5 ± 4 cm to 1 ± 1 cm (p = 0.001) and 9 ± 8 cm to 2 ± 3 cm (p < 0.001), respectively. Pelvic tilt significantly improved from 33° ± 9° to 23° ± 10° (p < 0.001). Significant improvement in HRQL measures included the following: Scoliosis Research Society (SRS) pain score (p = 0.009), SRS appearance score (p = 0.004), and SF-12/SF-36 physical component summary (PCS) score (p = 0.026). Transient and persistent neurological deficits occurred in 8 (36%) and 2 (9%) patients, respectively. Rod fracture/pseudarthrosis occurred in 6 (27%) patients (supplemental rods were utilized more recently in 23%). Revisions were performed in 7 (32%) patients. CONCLUSIONS In this single-center surgical series for severe adult scoliosis (major curves ≥ 75°), a posterior-only or multistage anterior-posterior approach provided major curve correction of 66% and significant improvements in global coronal and sagittal spinopelvic alignment. Significant improvements were also demonstrated in HRQL measures (SRS pain, SRS appearance, and SF-12/SF-36 PCS). Complications and revisions were comparable to those of other reports involving less severe scoliosis. The results of this study warrant future prospective multicenter studies to further delineate outcomes and complication risks for severe adult scoliosis correction.
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Affiliation(s)
- Thomas J Buell
- 1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
- 2Department of Neurological Surgery, Auckland City Hospital, Auckland, New Zealand; and
| | - Ching-Jen Chen
- 1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - James H Nguyen
- 1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Peter A Christiansen
- 1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Saikiran G Murthy
- 1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Avery L Buchholz
- 1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Chun-Po Yen
- 1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Mark E Shaffrey
- 1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Christopher I Shaffrey
- 3Departments of Orthopaedic and Neurological Surgery, Duke University Medical Center, Durham, North Carolina
| | - Justin S Smith
- 1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
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21
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Sabou S, Lagaras A, Verma R, Siddique I, Mohammad S. Comparative study of multilevel posterior interbody fusion plus anterior longitudinal ligament release versus classic multilevel posterior interbody fusion in the treatment of adult spinal deformities. J Neurosurg Spine 2019; 31:46-52. [PMID: 30952136 DOI: 10.3171/2019.1.spine18754] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 01/08/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Sagittal imbalance and loss of lumbar lordosis are the main drivers of functional disability in adult degenerative scoliosis. The main limitations of the classic posterior lumbar interbody fusion technique are increased risk of neurological injury and suboptimal correction of the segmental lordosis. Here, the authors describe the radiological results of a modified posterior lumbar interbody fusion and compare the results with a historical cohort of patients. METHODS Eighty-two consecutive patients underwent surgical treatment for degenerative scoliosis/kyphosis in a single tertiary referral center for complex spinal surgery. Fifty-five patients were treated using the classic multilevel posterior lumbar interbody fusion (MPLIF) technique and 27 were treated using the modified MPLIF technique to include a release of the anterior longitudinal ligament (ALL) and the annulus. A radiographic review of both series of patients was performed by two independent observers. Functional outcomes were obtained, and patients were registered in the European Spine Tango registry. RESULTS The mean L4-5 disc angle increased by 3.14° in the classic MPLIF group and by 12.83° in MPLIF plus ALL and annulus release group. The mean lumbar lordosis increased by 15.23° in the first group and by 25.17° in the second group. The L4-S1 lordosis increased on average by 4.92° in the classic MPLIF group and increased by a mean of 23.7° in the MPLIF plus ALL release group when both L4-5 and L5-S1 segments were addressed. There were significant improvements in the Core Outcome Measures Index and EQ-5D score in both groups (p < 0.001). There were no vascular or neurological injuries observed in either group. CONCLUSIONS The authors' preliminary results suggest that more correction can be achieved at the disc level using posterior-based ALL and annulus release in conjunction with posterior lumbar interbody fusion. They demonstrate that ALL and annulus release can be performed safely using a posterior-only approach with minimal risk of vascular injury. However, the authors recommend that this approach should only be used by surgeons with considerable experience in anterior and posterior spinal surgery.
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22
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Clinical and Radiological Outcomes of Corrective Surgery on Adult Spinal Deformity Patients: Comparison of Short and Long Fusion. Adv Orthop 2019; 2019:9492486. [PMID: 30941223 PMCID: PMC6421035 DOI: 10.1155/2019/9492486] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 02/12/2019] [Indexed: 11/17/2022] Open
Abstract
Despite the accumulated knowledge of spinal alignment and clinical outcomes the full corrective surgery cannot be applied to all the deformity patients as it requires considerable surgical burden to the patients. The aim of this study was to investigate the clinical and radiological outcomes of the patients who have received short and long fusion for ASD. A total of 21 patients who received surgical reconstructive spinal fusion procedures and were followed up for at least one year were retrospectively reviewed. Sixteen cases have received spinal corrective surgery that upper instrumented vertebrate (UIV) was thoracic level (group T), or 5 cases were with UIV in lumbar level (group L). Group L had shorter operation time, smaller intraoperative estimated blood loss, and shorter postoperative hospitalization days. Group T tends to improve more in the magnitude of VAS of lumbar pain compared to group L. Improvement of spinal alignment revealed the advantage of long fusion compared to short fusion, in Cobb angle, sagittal vertical axis (SVA), lumbar lordosis (LL), PI-LL C7 plum line (C7PL), and center sacral vertebral line (CSVL). Pelvic tilt (PT) did not differ between the groups. Disc lordosis was the most acquired in XLIF compared to TLIF and PLF and maintained one year. There were 9 adverse events, 3 cases of pulmonary embolism (PE), one case of delirium, and 6 cases of proximal junctional kyphosis. Current study elucidated that long fusion, UIV, is thoracic and can achieve better spinal alignment compared to short fusion, UIV, in lumbar. XLIF demonstrated strong ability to reconstruct the deformity on intervertebral space that is better to apply as much intervertebral space as possible. For the ASD patients with complications, short fusion can be one of the options.
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23
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Eghbal K, Pourabbas B, Abdollahpour HR, Mousavi R. Clinical, Functional, and Radiologic Outcome of Single- and Double-Level Transforaminal Lumbar Interbody Fusion in Patients with Low-Grade Spondylolisthesis. Asian J Neurosurg 2019; 14:181-187. [PMID: 30937032 PMCID: PMC6417314 DOI: 10.4103/ajns.ajns_156_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Objective: The main objective is to determine the functional, clinical, and radiological outcome of patients with low-grade spondylolisthesis undergoing single- or double-level transforaminal lumbar interbody fusion (TLIF). Materials and Methods: This quasi-interventional study was conducted during a 2-year period from 2016 to 2018 in Shiraz, Southern Iran. We included all the adult (≥18 years) patients with low-grade spondylolisthesis (Meyerding Grade I and II) who underwent single- or double-level TLIF in our center. The spinopelvic parameters including pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), lumbar lordosis (LL), and segmental LL (SLL) were measured. The pain intensity and disability were measured utilizing the visual analog scale (VAS) for back and leg pain and Oswestry Disability Index (ODI), respectively, after 1 year. Results: Overall, we included a total number of 50 patients with mean age of 54.1 ± 10.48 years. After the surgery, the PI (P = 0.432), PT (P = 0.782), and SS (P = 0.466) were not found to be statistically changed from the baseline. However, we found that single- or double-level TLIF was associated with increased LL (P < 0.001) and SLL (P < 0.001). Regarding the clinical outcome measures, both back (P = 0.001) and leg (P < 0.001) VAS improved after the surgery significantly. In addition, we found that improved leg VAS was positively correlated with improved ODI (r = 0. 634; P < 0.001). Conclusion: Single- or double-level TLIF is associated with increased global and SLL along with improved leg and back pain and disability in patients with low-grade spondylolisthesis. Interestingly, improved leg pain is correlated to improved disability in these patients.
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Affiliation(s)
- Keyvan Eghbal
- Department of Neurosurgery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Babak Pourabbas
- Department of Orthopedics, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Reza Mousavi
- Department of Neurosurgery, Shiraz University of Medical Sciences, Shiraz, Iran
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24
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Martins DE, Medeiros VPD, Wajchenberg M, Paredes-Gamero EJ, Lima M, Reginato RD, Nader HB, Puertas EB, Faloppa F. Changes in human intervertebral disc biochemical composition and bony end plates between middle and old age. PLoS One 2018; 13:e0203932. [PMID: 30226874 PMCID: PMC6144914 DOI: 10.1371/journal.pone.0203932] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 08/30/2018] [Indexed: 12/22/2022] Open
Abstract
Objective This study evaluates molecular, nutritional and biochemical alterations in
human intervertebral discs between middle and old age. Methods Twenty-eight human lumbar intervertebral discs from donors were evaluated and
separated into two groups: Middle-aged (35–50 years old, relatively
non-degenerate discs of Pfirrmann grades 1–3, n = 15) and Old-aged (≥80
years old, all degenerate Pfirrmann grade 4 or 5, n = 13). Parameters which
might be expected to to be related to nutrient supply and so the health of
disc cells (eg the porosity of the vertebral endplate, cell viability and
cell density) and to disc extracellular composition (ie quantification of
glycosaminoglycan disaccharides and hyaluronic acid molecular weight) and
collagen organization, were analyzed. Three regions of the intervertebral
disc (anterior annulus fibrosus, nucleus pulposus, and posterior annulus
fibrosus) were examined. Results The old-aged group showed a decrease in content of sulphated and
non-sulphated glycosaminoglycans relative to middle-aged and there were also
alterations in the proportion of GAG disaccharides and a decrease of
collagen fiber size. Hyaluronic acid molecular weight was around 200 kDa in
all regions and ages studied. The anterior annulus differed from the
posterior annulus particularly in relation to cell density and GAG content.
Additionally, there were changes in the bony endplate, with fewer openings
observed in the caudal than cranial endplates of all discs in both
groups. Conclusions Results show the cranial vertebral endplate is the main vascular source for
the intervertebral discs. Hylauronic acid molecular weight is the same
through the intervertebral disc after age of 50 years.
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Affiliation(s)
- Delio Eulalio Martins
- Department of Orthopaedics and Traumatology, Universidade Federal de Sao Paulo-UNIFESP, Sao Paulo, SP, Brazil
| | - Valquiria Pereira de Medeiros
- Department of Biochemistry, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, Brazil.,Faculty of Pharmaceutical Science, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Marcelo Wajchenberg
- Department of Orthopaedics and Traumatology, Universidade Federal de Sao Paulo-UNIFESP, Sao Paulo, SP, Brazil
| | - Edgar Julian Paredes-Gamero
- Faculty of Pharmaceutical Science, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil.,Department of Biochemistry, Universidade Federal de Sao Paulo-UNIFESP, Sao Paulo, SP, Brazil
| | - Marcelo Lima
- Department of Biochemistry, Universidade Federal de Sao Paulo-UNIFESP, Sao Paulo, SP, Brazil
| | - Rejane Daniele Reginato
- Department of Morphology and Genetics, Universidade Federal de Sao Paulo-UNIFESP, Sao Paulo, SP, Brazil
| | - Helena Bonciani Nader
- Department of Biochemistry, Universidade Federal de Sao Paulo-UNIFESP, Sao Paulo, SP, Brazil
| | - Eduardo Barros Puertas
- Department of Orthopaedics and Traumatology, Universidade Federal de Sao Paulo-UNIFESP, Sao Paulo, SP, Brazil
| | - Flavio Faloppa
- Department of Orthopaedics and Traumatology, Universidade Federal de Sao Paulo-UNIFESP, Sao Paulo, SP, Brazil
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Campbell PG, Nunley PD. The Challenge of the Lumbosacral Fractional Curve in the Setting of Adult Degenerative Scoliosis. Neurosurg Clin N Am 2018; 29:467-474. [DOI: 10.1016/j.nec.2018.02.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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26
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Qiao M, Qian BP, Mao SH, Qiu Y, Wang B. The patterns of loss of correction after posterior wedge osteotomy in ankylosing spondylitis-related thoracolumbar kyphosis: a minimum of five-year follow-up. BMC Musculoskelet Disord 2017; 18:465. [PMID: 29149848 PMCID: PMC5693535 DOI: 10.1186/s12891-017-1834-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 11/10/2017] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Short-term studies have demonstrated good surgical outcomes after pedicle subtraction osteotomy (PSO) in ankylosing spondylitis (AS) patients, but there is a paucity of literature focused on middle-term results, especially regarding patterns of loss of correction. The objective of this study is to assess the durability of surgical outcomes and the patterns of loss of correction in thoracolumbar kyphosis secondary to AS following lumbar PSO with over 5-year follow-up. METHODS We performed a retrospective review of 155 consecutive AS patients undergoing lumbar PSO from January 2001 to December 2011. Twenty-four patients were included with an average follow-up of 6.9 years (range, 5-15 years). Radiographical evaluations included global kyphosis (GK), lumbar lordosis (LL), sagittal vertical axis, spinal-sacral angle, kyphosis of proximal non-fused segments (KPNS), angle of fused segments (AFS), osteotomized vertebra angle (OVA), distal intervertebral disc wedging (DIDW) and proximal junctional angle. Meanwhile, clinical outcomes were assessed by the Oswestry disability index (ODI) and Numerical rating scale (NRS). RESULTS The average correction per PSO segment was 34.9°. Significant improvement in sagittal parameters were found postoperatively, and no obvious deterioration was noticed during the follow-up. Mild loss of correction in GK (2.82°) and LL (3.77°) were observed at the final follow-up (P < 0.05). The KPNS and DIDW increased from 26° and -5.0° postoperatively to 30° and -2.2° at the final follow-up (P < 0.05), respectively. In contrast, no significant diminishment was identified in OVA and AFS (P > 0.05). The ODI and NRS improved significantly from 20.6 and 6.6 preoperatively to 5.9 and 2.3 at the final follow-up (P < 0.05). CONCLUSIONS PSO is an effective procedure for treating AS-related thoracolumbar kyphosis and can maintain sustained surgical outcomes during the middle-term follow-up. The loss of correction was mainly attributable to non-instrumented segments without fully ossified bridging syndesmophyte in the thoracolumbar region instead of instrumented levels.
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Affiliation(s)
- Mu Qiao
- Department of Spine Surgery, Drum Tower Hospital of Nanjing University Medical School, Zhongshan Rd 321, Nanjing, 210008 China
- Medical School of Southeast University, Nanjing, China
| | - Bang-ping Qian
- Department of Spine Surgery, Drum Tower Hospital of Nanjing University Medical School, Zhongshan Rd 321, Nanjing, 210008 China
- Medical School of Southeast University, Nanjing, China
| | - Sai-hu Mao
- Department of Spine Surgery, Drum Tower Hospital of Nanjing University Medical School, Zhongshan Rd 321, Nanjing, 210008 China
| | - Yong Qiu
- Department of Spine Surgery, Drum Tower Hospital of Nanjing University Medical School, Zhongshan Rd 321, Nanjing, 210008 China
- Medical School of Southeast University, Nanjing, China
| | - Bin Wang
- Department of Spine Surgery, Drum Tower Hospital of Nanjing University Medical School, Zhongshan Rd 321, Nanjing, 210008 China
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Jäger M, Tassemeier T. The Double-Transforaminal Lumbar Interbody Fusion: An Innovative One-Stage Surgical Technique for Posterior Kyphosis Correction. Orthop Rev (Pavia) 2017; 9:7107. [PMID: 28713528 PMCID: PMC5505100 DOI: 10.4081/or.2017.7107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 03/03/2017] [Indexed: 11/23/2022] Open
Abstract
Posttraumatic deformities after vertebral fractures are challenging for orthopedic surgeons in the non-operative and operative field. Especially osteoporotic fractures may cause a hyperkyphosis resulting in segmental or global sagittal imbalance and chronic back pain. Different vertebral osteotomies are potent to restore sagittal profile but show a very high perioperative risk including neurological and soft tissue complications. In addition, some of these extensive operations require a two-step procedure including posterior and anterior approaches. Therefore, these established techniques may be contraindicated in elderly or multimorbide patients suffering from concomitant diseases. The authors describe the double transforaminal lumbar interbody fusion (TLIF) osteotomy (DTO) as an innovative one-stage and low-invasive surgical technique to correct a fixed posttraumatic kyphosis in the thoracolumbar junction. The procedure includes posterior release (laminectomy, facettectomy, nucleotomy) combined with two expandable TLIF implants (sandwich technique) and posterior instrumentation and is illustrated by a case of a multimorbide 78-year old female.
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Affiliation(s)
- Marcus Jäger
- Department of Orthopaedics and Trauma Surgery, University of Duisburg-Essen, Essen, Germany
| | - Tjark Tassemeier
- Department of Orthopaedics and Trauma Surgery, University of Duisburg-Essen, Essen, Germany
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