ArticleScientific reports2024
Spinal instrumentation length affects adjacent segment range of motion and intradiscal pressure.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Biomechanical comparison of lumbar rotational manipulations in two different positions using force measurement and finite element analysis.Chiropractic & manual therapies · 2026Trial
- Combine Short-Segment Fixation and Leverage Reduction Technique to Correct Kyphotic Angle in Kümmell's Disease.Orthopaedic surgery · 2026Article
- Importance of a Systematic Intervertebral Motion Parametrization for in vivo Assessment of Spine Biomechanics.Annals of biomedical engineering · 2026Article
- Article
- Investigation of instrumentation lengthening in the thoracolumbar junction of the spine - an in vitro Biomechanical study.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025Article
- Letter to the editor concerning "Do all symptomatic adjacent segment diseases (ASD) require surgery? A prognostic classification and predictors of surgical treatment of lumbar ASD" by RM Kanna, et al. (Eur spine J [2025]: doi: 10.1007/s00586-025-08797-x).European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025Article
- Answer to the letter to the editor of D. Li, et al. concerning "Do all symptomatic adjacent segment diseases (ASD) require surgery? A prognostic classification and predictors of surgical treatment of lumbar ASD" by RM Kanna, et al. (Eur Spine J [2025]: doi: 10.1007/s00586-025-08797-x).European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025Article
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5 authors.
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Abstract
Scoliosis instrumentation length depends on the type and degree of deformity and the individual preference of the surgeon. This in vitro study aimed to explore effects of increasing instrumentation length on adjacent segment mobility and intervertebral disc loading. Six fresh frozen human spine specimens (C7-sacrum) with entire rib cage from young adult donors (26-45 years) were loaded with pure moments of 5 Nm. Range of motion (ROM) of all segments was determined using optical motion tracking. Lumbar intradiscal pressure (IDP) was measured using flexible pressure sensors from L1 to L5. The specimens were tested in two groups with increasing posterior instrumentation length in proximal (group 1) and distal direction (group 2). Significant (p < 0.05) adjacent segment ROM increases compared to the condition without any instrumentation and compared to other instrumentations were primarily found proximally to the instrumentation in lateral bending. IDP significantly (p < 0.05) increased in flexion in the distal adjacent segment for T4-L1 instrumentation and by up to 550% at instrumented levels compared to the condition without instrumentation. These findings may explain clinical complications such as adjacent segment disease and associated proximal and distal junctional kyphosis. To reduce loads on adjacent segments, instrumentation should therefore be applied as short as reasonable.
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