Study Results
Results pending
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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Recruitment Status
UNKNOWN
Total Enrollment
640 participants
Study Classification
OBSERVATIONAL
Study Start Date
2022-08-01
Study Completion Date
2024-08-01
Brief Summary
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This is a retrospective, observational multi-center study. The participants undergone lumbar spine surgery for degenerative lumbar scoliosis and followed up for at least 2 years are retrospectively enrolled from 8 centers. This study mainly focuses on the short-term and long-term outcomes of lumbar surgery in participants with degenerative lumbar scoliosis, and that how much the surgical outcomes are related with demographic, surgical, and radiographic features before and after surgery. The objective is to offer more detailed clinical evidence to guide the surgical strategy development for degenerative lumbar scoliosis.
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Detailed Description
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Degenerative lumbar scoliosis is a spinal deformity that typically develops among adults over 50 years old. Characterized with low back pain, leg pain and abnormal body posture to various degrees, patients are mostly offered conservative treatment in early stages, and then resort to surgical treatment when medication fail to achieve alleviation. The surgical procedures to treat degenerative lumbar scoliosis include spinal decompression, fusion, and instrumentation, or a combination of several of the above. Osteotomy is generally required when it comes to rigid deformity. However, surgical treatment strategies are complicated by factors comprising osteoporosis, paraspinal muscle degeneration, common yet severe postoperative complications resulting from specific surgical methods, and chronic metabolic diseases and so on. A detailed and individualized surgical planning has been under debate and development continuously. Also, most previous classifications and researches are centered on the population of the white. Representative data of the yellow people, especially Chinese people, from multicentric studies are scarce.
Patients undergone surgeries for degenerative lumbar scoliosis in 8 hospitals in China between 2010 and 2020 are retrospectively selected and enrolled. Patients' clinical data from pre-operation, post-operation and the last follow-up are revaluated. General patient data are collected after informed consent, such as age, gender, height, weight, body mass index and bone mineral density measured in T-scores, together with surgical data including operation duration, blood loss, physical status grades based on the American Society of Anesthesiologists Classification, surgical approaches, upper instrumented vertebra, lowest instrumented vertebra, osteotomy grades based on Schwab Classification, osteotomy levels, lumbosacral curve levelling approaches, cemented vertebrae, and perioperative complications. Radiographic parameters of the spine are also measured from X-rays, including the upper end vertebra of the major curve, apical vertebral translation, Cobb angles of the major and fractional curves, coronal balance distance, coronal classification of the deformity based on the Drum Tower Classification, L4 and L5 tilt on the coronal plane, lumbar tilt, thoracic kyphosis, lumbar lordosis, thoracolumbar kyphosis, sagittal vertical axis, T1 pelvic angle, pelvic tilt, sacral slope, L4-S1 lordotic angle, and proximal junctional angle. Clinical outcomes assessed with Japanese Orthopaedic Association score, Oswestry Disability Index and visual analogue scale of leg/back pain are also gathered. Correlation between demographic, surgical, and radiographic parameters and clinical outcomes are statistically explored, in order to find indexes that help group and match patients with their optimum surgical strategies.
Patients undergone surgeries for degenerative lumbar scoliosis in 8 hospitals in China between 2010 and 2020 are retrospectively selected and enrolled. Patients' clinical data from pre-operation, post-operation and the last follow-up are revaluated. General patient data are collected after informed consent, such as age, gender, height, weight, body mass index and bone mineral density measured in T-scores, together with surgical data including operation duration, blood loss, physical status grades based on the American Society of Anesthesiologists Classification, surgical approaches, upper instrumented vertebra, lowest instrumented vertebra, osteotomy grades based on Schwab Classification, osteotomy levels, lumbosacral curve levelling approaches, cemented vertebrae, and perioperative complications. Radiographic parameters of the spine are also measured from X-rays, including the upper end vertebra of the major curve, apical vertebral translation, Cobb angles of the major and fractional curves, coronal balance distance, coronal classification of the deformity based on the Drum Tower Classification, L4 and L5 tilt on the coronal plane, lumbar tilt, thoracic kyphosis, lumbar lordosis, thoracolumbar kyphosis, sagittal vertical axis, T1 pelvic angle, pelvic tilt, sacral slope, L4-S1 lordotic angle, and proximal junctional angle. Clinical outcomes assessed with Japanese Orthopaedic Association score, Oswestry Disability Index and visual analogue scale of leg/back pain are also gathered. Correlation between demographic, surgical, and radiographic parameters and clinical outcomes are statistically explored, in order to find indexes that help group and match patients with their optimum surgical strategies.
Conditions
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Degenerative Scoliosis
Scoliosis Lumbar Region
Study Design
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Observational Model Type
COHORT
Study Time Perspective
RETROSPECTIVE
Study Groups
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degenerative lumbar scoliosis postoperative group
This group contains patients who have undergone spinal surgery for degenerative lumbar scoliosis.
No interventions are designed to be administered.
No interventions assigned to this group
Eligibility Criteria
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Inclusion Criteria
* age ≥ 60 years old
* diagnosed with degenerative lumbar scoliosis with X-ray before surgery
* Cobb angle of the major curve ≥ 20°
* with signs and/or symptoms of low back pain and/or leg pain, torso imbalance, and spinal nerve compression
* followed up for at least 2 years after the surgery
* diagnosed with degenerative lumbar scoliosis with X-ray before surgery
* Cobb angle of the major curve ≥ 20°
* with signs and/or symptoms of low back pain and/or leg pain, torso imbalance, and spinal nerve compression
* followed up for at least 2 years after the surgery
Exclusion Criteria
* scoliosis caused by infection, trauma or tumor.
* classified as adult idiopathic scoliosis, congenital scoliosis, and scoliosis caused by neuromuscular diseases
* previous history of spinal surgery
* classified as adult idiopathic scoliosis, congenital scoliosis, and scoliosis caused by neuromuscular diseases
* previous history of spinal surgery
Minimum Eligible Age
60 Years
Eligible Sex
ALL
Accepts Healthy Volunteers
No
Sponsors
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Hebei Medical University Third Hospital
OTHER
Sponsor Role
collaborator
Tianjin Hospital
OTHER
Sponsor Role
collaborator
West China Hospital
OTHER
Sponsor Role
collaborator
Qilu Hospital of Shandong University
OTHER
Sponsor Role
collaborator
The First Affiliated Hospital of Nanchang University
OTHER
Sponsor Role
collaborator
Henan Provincial People's Hospital
OTHER
Sponsor Role
collaborator
The First People's Hospital of Yunnan
OTHER
Sponsor Role
collaborator
Peking University Third Hospital
OTHER
Sponsor Role
lead
Responsible Party
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Responsibility Role
SPONSOR
Principal Investigators
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Weishi Li, M.D.
Role: PRINCIPAL_INVESTIGATOR
Peking University Third Hospital
Locations
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Peking University Third Hospital
Beijing, Beijing Municipality, China
Site Status
RECRUITING
The Third Affiliated Hospital of Hebei Medical University
Shijiazhuang, Hebei, China
Site Status
RECRUITING
Henan Provincial People's Hospital
Zhengzhou, Henan, China
Site Status
RECRUITING
The First Affiliated Hospital of Nanchang University
Nanchang, Jiangxi, China
Site Status
RECRUITING
Qilu Hospital of Shandong University
Jinan, Shandong, China
Site Status
RECRUITING
West China Hospital of Sichuan University
Chengdu, Sichuan, China
Site Status
RECRUITING
Tianjin Hospital
Tianjin, Tianjin Municipality, China
Site Status
RECRUITING
The First People's Hospital of Yunnan Province
Kunming, Yunnan, China
Site Status
RECRUITING
Countries
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China
Central Contacts
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Facility Contacts
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References
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Wang H, Li W. Multilevel extended posterior column osteotomy plus unilateral cage strutting for degenerative lumbar kyphoscoliosis. Int Orthop. 2020 Jul;44(7):1375-1383. doi: 10.1007/s00264-020-04632-8. Epub 2020 May 21.
Reference Type
BACKGROUND
Pritchett JW, Bortel DT. Degenerative symptomatic lumbar scoliosis. Spine (Phila Pa 1976). 1993 May;18(6):700-3. doi: 10.1097/00007632-199305000-00004.
Reference Type
BACKGROUND
Oskouian RJ Jr, Shaffrey CI. Degenerative lumbar scoliosis. Neurosurg Clin N Am. 2006 Jul;17(3):299-315, vii. doi: 10.1016/j.nec.2006.05.002.
Reference Type
BACKGROUND
Koerner JD, Reitman CA, Arnold PM, Rihn J. Degenerative Lumbar Scoliosis. JBJS Rev. 2015 Apr 7;3(4):e1. doi: 10.2106/JBJS.RVW.N.00061. No abstract available.
Reference Type
BACKGROUND
Xu L, Sun X, Huang S, Zhu Z, Qiao J, Zhu F, Mao S, Ding Y, Qiu Y. Degenerative lumbar scoliosis in Chinese Han population: prevalence and relationship to age, gender, bone mineral density, and body mass index. Eur Spine J. 2013 Jun;22(6):1326-31. doi: 10.1007/s00586-013-2678-8. Epub 2013 Jan 30.
Reference Type
BACKGROUND
Schwab F, Dubey A, Gamez L, El Fegoun AB, Hwang K, Pagala M, Farcy JP. Adult scoliosis: prevalence, SF-36, and nutritional parameters in an elderly volunteer population. Spine (Phila Pa 1976). 2005 May 1;30(9):1082-5. doi: 10.1097/01.brs.0000160842.43482.cd.
Reference Type
BACKGROUND
Jimbo S, Kobayashi T, Aono K, Atsuta Y, Matsuno T. Epidemiology of degenerative lumbar scoliosis: a community-based cohort study. Spine (Phila Pa 1976). 2012 Sep 15;37(20):1763-70. doi: 10.1097/BRS.0b013e3182575eaa.
Reference Type
BACKGROUND
Diebo B, Liu S, Lafage V, Schwab F. Osteotomies in the treatment of spinal deformities: indications, classification, and surgical planning. Eur J Orthop Surg Traumatol. 2014 Jul;24 Suppl 1:S11-20. doi: 10.1007/s00590-014-1471-7. Epub 2014 May 11.
Reference Type
BACKGROUND
Protopsaltis T, Schwab F, Bronsard N, Smith JS, Klineberg E, Mundis G, Ryan DJ, Hostin R, Hart R, Burton D, Ames C, Shaffrey C, Bess S, Errico T, Lafage V; International Spine Study Group. TheT1 pelvic angle, a novel radiographic measure of global sagittal deformity, accounts for both spinal inclination and pelvic tilt and correlates with health-related quality of life. J Bone Joint Surg Am. 2014 Oct 1;96(19):1631-40. doi: 10.2106/JBJS.M.01459.
Reference Type
BACKGROUND
Diebo BG, Oren JH, Challier V, Lafage R, Ferrero E, Liu S, Vira S, Spiegel MA, Harris BY, Liabaud B, Henry JK, Errico TJ, Schwab FJ, Lafage V. Global sagittal axis: a step toward full-body assessment of sagittal plane deformity in the human body. J Neurosurg Spine. 2016 Oct;25(4):494-499. doi: 10.3171/2016.2.SPINE151311. Epub 2016 May 20.
Reference Type
BACKGROUND
Bao H, Yan P, Qiu Y, Liu Z, Zhu F. Coronal imbalance in degenerative lumbar scoliosis: Prevalence and influence on surgical decision-making for spinal osteotomy. Bone Joint J. 2016 Sep;98-B(9):1227-33. doi: 10.1302/0301-620X.98B9.37273.
Reference Type
BACKGROUND
Wang H, Wang L, Sun Z, Jiang S, Li W. Posterior column osteotomy plus unilateral cage strutting for correction of lumbosacral fractional curve in degenerative lumbar scoliosis. J Orthop Surg Res. 2020 Oct 20;15(1):482. doi: 10.1186/s13018-020-02011-y.
Reference Type
BACKGROUND
Schwab FJ, Smith VA, Biserni M, Gamez L, Farcy JP, Pagala M. Adult scoliosis: a quantitative radiographic and clinical analysis. Spine (Phila Pa 1976). 2002 Feb 15;27(4):387-92. doi: 10.1097/00007632-200202150-00012.
Reference Type
BACKGROUND
Schwab FJ, Blondel B, Bess S, Hostin R, Shaffrey CI, Smith JS, Boachie-Adjei O, Burton DC, Akbarnia BA, Mundis GM, Ames CP, Kebaish K, Hart RA, Farcy JP, Lafage V; International Spine Study Group (ISSG). Radiographical spinopelvic parameters and disability in the setting of adult spinal deformity: a prospective multicenter analysis. Spine (Phila Pa 1976). 2013 Jun 1;38(13):E803-12. doi: 10.1097/BRS.0b013e318292b7b9.
Reference Type
BACKGROUND
Schwab F, Blondel B, Chay E, Demakakos J, Lenke L, Tropiano P, Ames C, Smith JS, Shaffrey CI, Glassman S, Farcy JP, Lafage V. The comprehensive anatomical spinal osteotomy classification. Neurosurgery. 2014 Jan;74(1):112-20; discussion 120. doi: 10.1227/NEU.0000000000000182o.
Reference Type
BACKGROUND
Toyone T, Shiboi R, Ozawa T, Inada K, Shirahata T, Kamikawa K, Watanabe A, Matsuki K, Ochiai S, Kaiho T, Morikawa Y, Sota K, Yasuchika A, Gen I, Sumihisa O, Ohtori S, Takahashi K, Wada Y. Asymmetrical pedicle subtraction osteotomy for rigid degenerative lumbar kyphoscoliosis. Spine (Phila Pa 1976). 2012 Oct 1;37(21):1847-52. doi: 10.1097/BRS.0b013e31825bf644.
Reference Type
BACKGROUND
Chan AK, Lau D, Osorio JA, Yue JK, Berven SH, Burch S, Hu SS, Mummaneni PV, Deviren V, Ames CP. Asymmetric Pedicle Subtraction Osteotomy for Adult Spinal Deformity with Coronal Imbalance: Complications, Radiographic and Surgical Outcomes. Oper Neurosurg. 2020 Feb 1;18(2):209-216. doi: 10.1093/ons/opz106.
Reference Type
BACKGROUND
Buchowski JM, Bridwell KH, Lenke LG, Kuhns CA, Lehman RA Jr, Kim YJ, Stewart D, Baldus C. Neurologic complications of lumbar pedicle subtraction osteotomy: a 10-year assessment. Spine (Phila Pa 1976). 2007 Sep 15;32(20):2245-52. doi: 10.1097/BRS.0b013e31814b2d52.
Reference Type
BACKGROUND
Schwab F, Ungar B, Blondel B, Buchowski J, Coe J, Deinlein D, DeWald C, Mehdian H, Shaffrey C, Tribus C, Lafage V. Scoliosis Research Society-Schwab adult spinal deformity classification: a validation study. Spine (Phila Pa 1976). 2012 May 20;37(12):1077-82. doi: 10.1097/BRS.0b013e31823e15e2.
Reference Type
BACKGROUND
Smith JS, Singh M, Klineberg E, Shaffrey CI, Lafage V, Schwab FJ, Protopsaltis T, Ibrahimi D, Scheer JK, Mundis G Jr, Gupta MC, Hostin R, Deviren V, Kebaish K, Hart R, Burton DC, Bess S, Ames CP; International Spine Study Group. Surgical treatment of pathological loss of lumbar lordosis (flatback) in patients with normal sagittal vertical axis achieves similar clinical improvement as surgical treatment of elevated sagittal vertical axis: clinical article. J Neurosurg Spine. 2014 Aug;21(2):160-70. doi: 10.3171/2014.3.SPINE13580. Epub 2014 Apr 25.
Reference Type
BACKGROUND
Fei H, Li WS, Sun ZR, Jiang S, Chen ZQ. Effect of patient position on the lordosis and scoliosis of patients with degenerative lumbar scoliosis. Medicine (Baltimore). 2017 Aug;96(32):e7648. doi: 10.1097/MD.0000000000007648.
Reference Type
BACKGROUND
Han F, Weishi L, Zhuoran S, Qingwei M, Zhongqiang C. Sagittal plane analysis of the spine and pelvis in degenerative lumbar scoliosis. J Orthop Surg (Hong Kong). 2017 Jan;25(1):2309499016684746. doi: 10.1177/2309499016684746.
Reference Type
BACKGROUND
Xu F, Sun Z, Li W, Hou X, Jiang S, Zhou S, Zou D, Li Z. Correlation between lordosis distribution index, lordosis tilt, and occurrence of proximal junctional kyphosis following surgery for adult degenerative scoliosis. Eur Spine J. 2022 Feb;31(2):267-274. doi: 10.1007/s00586-021-07090-x. Epub 2022 Jan 25.
Reference Type
BACKGROUND
Other Identifiers
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M2022381
Identifier Type: -
Identifier Source: org_study_id
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