Sagittal Balance: Parameters, Measurement, Compensation, Rousoully Types.

Описание: Sagittal balance is an integral part of human posture — and a central principle of modern spine surgery.
This video aims to break down concept in a structured way:

🔹 What sagittal balance is and why it matters
🔹 The five key parameters that define it
🔹 The compensatory chain when balance is lost (pelvis → hips → knees → spine)
🔹 The Roussouly classification and how each type shapes natural spinal alignment
🔹 The Schwab sagittal modifiers and the alignment targets used in adult deformity surgery
🔹 How degenerative changes progress into fixed sagittal imbalance
🔹 Surgical correction principles: restoring lumbar lordosis, reducing pelvic tilt, and rebalancing the entire spinal chain
🔹 Why every spine must be corrected according to its own morphology

All of the models presented, as well as the video itself are available on the "3D Atlas of Neurological Surgery" platform.
https://3datlasofneurologicalsurgery.org


Acknowledgment:
This video incorporates anatomical 3D data from BodyParts3D, Database Center for Life Science (DBCLS), Japan
[Mitsuhashi N. et al., 2009. Nucleic Acids Research, 37(Database issue): D782–D785. doi:10.1093/nar/gkn613] Open access database: https://lifesciencedb.jp/bp3d/ License: CC BY-SA 2.1 JP

References:
1. Roussouly P, Gollogly S, Berthonnaud E, Dimnet J. Classification of the normal variation in the sagittal alignment of the human lumbar spine and pelvis in the standing position. Spine (Phila Pa 1976). 2005 Feb 1;30(3):346-53. doi: 10.1097/01.brs.0000152379.54463.65. PMID: 15682018.
2. Laouissat F, Sebaaly A, Gehrchen M, Roussouly P. Classification of normal sagittal spine alignment: refounding the Roussouly classification. Eur Spine J. 2018 Aug;27(8):2002-2011. doi: 10.1007/s00586-017-5111-x. Epub 2017 Apr 28. PMID: 28455623.
3. 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. PMID: 22045006.

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