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Degenerative ScoliosisDLSNCT05485636

Degenerative Lumbar Scoliosis

An observational study of Degenerative Scoliosis and Scoliosis Lumbar Region, run by Peking University Third Hospital at 8 sites in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 60 years and older
How many people
640 participants
Where
8 sitesChina
Study dates
1 Aug 2022to 1 Aug 2024
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 60 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: In the orthopaedic department of the eight medical centers, patients undergone spinal surgery for degenerative lumbar scoliosis are invited to participate in the study.

Who may be able to join

  • 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

Who cannot join

  • 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

Trial locations and contacts

8 sites in 1 country.

Zhuoran Sun, M.D. contact

puh3_szr@163.com

8 sites in 1 country

China8 sites, 8 recruiting
  • Peking University Third Hospital

    Beijing, Beijing Municipality, 100191

    Weishi Li, M.D., (+86010)62017691-7011, puh3liweishi@163.com

    Zhuoran Sun, puh3_szr@163.com

    Recruiting
  • West China Hospital of Sichuan University

    Chengdu, Sichuan, 610041

    Limin Liu, M.D., 18980601394@163.com

    Recruiting
  • Qilu Hospital of Shandong University

    Jinan, Shandong, 250012

    Xinyu Liu, M.D., newyuliu@163.com

    Recruiting
  • The First People's Hospital of Yunnan Province

    Kunming, Yunnan, 650032

    Sheng Lu, M.D., drlusheng@163.com

    Recruiting
  • The First Affiliated Hospital of Nanchang University

    Nanchang, Jiangxi, 330019

    Haoqun Yao, M.D., yaohaoqun@sina.com

    Recruiting
  • The Third Affiliated Hospital of Hebei Medical University

    Shijiazhuang, Hebei, 050051

    Wenyuan Ding, M.D., dingwyster@163.com

    Recruiting
  • Tianjin Hospital

    Tianjin, Tianjin Municipality, 300210

    Qiang Yang, M.D., yangqiang1980@126.com

    Recruiting
  • Henan Provincial People's Hospital

    Zhengzhou, Henan, 450003

    Yanzheng Gao, M.D., doctorgao63@163.com

    Recruiting

Other trials in China

About this study

Official title: Degenerative Lumbar Scoliosis: a Multi-center Study

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.

Read the detailed description

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.

Keywords
degenerative, lumbar, scoliosis, outcome
Medical subject headings
Scoliosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT05485636
Study groupRoleWhat they receive
degenerative lumbar scoliosis postoperative groupThis group contains patients who have undergone spinal surgery for degenerative lumbar scoliosis. No interventions are designed to be administered.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mechanical complications

    Mechanical complications at the last follow-up, including proximal junctional kyphosis, proximal junctional failure, distal junctional kyphosis, distal junctional failure, instrument breakage, pedicle screw loosening, pseudoarthrosis, and others.

    Measured: 24 months

Secondary outcomes (5)
  1. Radiological angular parameters

    Radiological angular parameters measured on anteroposterior and lateral radiographs, including: 1) major and lumbosacral Cobb angle, 2) L4, L5 and upper instrumented vertebra (UIV) tilt, 3)T1-UIV Cobb angle, 4) thoracic kyphosis, 5) lumbar lordosis, 6) thoracolumbar kyphosis, 7) T1 pelvic angle, 8) pelvic incidence, 9) pelvic tilt, 10) sacral slope, 11) lordosis tilt, 12) proximal junctional angle, and 13) L4-S1 lumbar lordosis.

    Measured: 3 months, 6 months, 12 months, 24 months

  2. Radiological distance parameters

    Radiological distance parameters measured on anteroposterior and lateral radiographs, including: 1) coronal balance distance, 2) sagittal vertical axis, 3) apical vertebral translation.

    Measured: 3 months, 6 months, 12 months, 24 months

  3. Back pain

    The Visual Analogue Scale (VAS 0-10) is adopted to evaluate back pain, with higher scores indicating severer pain.

    Measured: 3 months, 6 months, 12 months, 24 months

  4. Leg pain

    The Visual Analogue Scale (VAS 0-10) is adopted to evaluate leg pain, with higher scores indicating severer pain.

    Measured: 3 months, 6 months, 12 months, 24 months

  5. Disability

    The Japanese Orthopaedic Association (JOA 0-29) Scores is used to assess disability, with lower scores indicating severer disability. The Oswestry Disability Index (ODI 0-100%) is also used to assess disability, with higher percentages indicating severer disability.

    Measured: 3 months, 6 months, 12 months, 24 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Aug 2022
  2. Study start1 Aug 2022
  3. Primary completion1 Aug 2024 (estimated)
  4. Study completion1 Aug 2024 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
640 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05485636
Sponsor's protocol ID
M2022381
Acronym
DLS
Status last verified
Jul 2022
First submitted
4 Jul 2022
Last updated
1 Dec 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: We will make the clinical study report available half a year after the publication of the results of the study.

Publications

  • Pritchett JW, Bortel DT. Degenerative symptomatic lumbar scoliosis. Spine (Phila Pa 1976). 1993 May;18(6):700-3. doi: 10.1097/00007632-199305000-00004.

    PubMed 8516697
  • 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.

    PubMed 16876030
  • 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.

    PubMed 27490255
  • 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.

    PubMed 23361532
  • 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.

    PubMed 15864163
  • 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.

    PubMed 22487710
  • 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.

    PubMed 24816823
  • 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.

    PubMed 25274788
  • 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.

    PubMed 27203811
  • 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.

    PubMed 27587525
  • 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.

    PubMed 33081812
  • 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.

    PubMed 11840105
  • 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.

    PubMed 23722572
  • 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.

    PubMed 24356197
  • 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.

    PubMed 22565386

Questions about this trial

What is this clinical trial studying?

An observational study of Degenerative Scoliosis and Scoliosis Lumbar Region, run by Peking University Third Hospital at 8 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 1 Dec 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Weishi Li, M.D. ((+86010)62017691-7011, puh3liweishi@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mechanical complications (time frame: 24 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05485636, which also lists 23 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Dec 2022.

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