Anatomy and Biomechanics of the Back Muscles in the Lumbar Spine With Reference to Biomechanical Modeling

  title={Anatomy and Biomechanics of the Back Muscles in the Lumbar Spine With Reference to Biomechanical Modeling},
  author={Lone Hansen and Mark de Zee and John Rasmussen and Thomas B. Andersen and Christian Wong and Erik B. Simonsen},
Study Design. This article describes the development of a musculoskeletal model of the human lumbar spine with focus on back muscles. It includes data from literature in a structured form. Objective. To review the anatomy and biomechanics of the back muscles related to the lumbar spine with relevance for biomechanical modeling. Summary of Background Data. To reduce complexity, muscle units have been incorporated in an abridged manner, reducing their actions more or less to a single force… 

A Musculoskeletal model for the lumbar spine

A new musculoskeletal model for the lumbar spine that includes the abilities to predict joint reactions, muscle forces, and muscle activation patterns is described in this paper and can be integrated with existing OpenSim models to build more comprehensive models of the human body.

The influence of muscle forces on the stress distribution in the lumbar spine

The application of spine muscles to a finite element model showed markedly larger von Mises stress responses in the central and anterior part of the vertebral body, which can be tolerated in the young and healthy spine, but it would increase the risk of compression fractures in the elderly, osteoporotic spine.

Contribution of paraspinal muscle and passive elements of the spine to the mechanical stability of the lumbar spine

The mechanical stability of the lumbar spine provided by the muscle (active system) and corresponding reaction forces produced in the passive subsystem (ligaments and facet joint) was examined during isometric forward flexed and erect standing postures and indicated that all the muscles were properly combined to maintain posture and stabilize the lumbsar spine.

A musculoskeletal lumbar and thoracic model for calculation of joint kinetics in the spine

A musculoskeletal spine model that allows relative movements in the thoracic spine for calculation of intra-discal forces in the lumbar and thoraco-lumbar spine was developed and validated against clinical data.

Computational model of the lumbar spine musculature: implications of spinal surgery.

Biomechanical Evaluation of the Effect of Minimally Invasive Spine Surgery Compared with Traditional Approaches in Lifting Tasks

Investigating Traditional Open Spine surgery versus Minimally Invasive Spine Surgery revealed that joint reaction forces are more affected by both surgical approaches for lateral lifting motions than for sagittal plane motions, and there are indications that individuals with fused joints, regardless of the approach, should be particularly careful with asymmetrical lifts.

Evaluation of Change in Muscle Activity as a Result of Posterior Lumbar Spine Surgery Using a Dynamic Modeling System

This study suggests that there is a positive correlation between the reduction of paraspinal muscle cross-sectional area following posterior lumbar spine surgery and the alteration in trunk muscle activity.

Stress Sensors Driving a Feedback Mechanism for the Prediction of Paraspinal Muscle Forces during Upright Stance Posture

A hypothesis is presented that the disc has stress sensors driving a feedback mechanism which can react to the imposed loads by adjusting the contraction of muscles, which indicates that the originally C-shaped lumbar spine was flattened at the upper level, while the more lordotic curvature was generated at the lower level.



The mechanics of back-extensor torque production about the lumbar spine.

Importance of the Intersegmental Trunk Muscles for the Stability of the Lumbar Spine: A Biomechanical Study In Vitro

The action of the intersegmental agonist and antagonist muscles biomechanically increases the overall stiffness (stability) of theintervertebral joints in axial torque and lateral bending, whereas it may destabilize the segment in flexion.

Quantitative anatomy of the lumbar musculature.

1986 Volvo Award in Biomechanics: Partitioning of the L4 - L5 Dynamic Moment into Disc, Ligamentous, and Muscular Components During Lifting

A dynamic model of the low back that incorporates extensive anatomical detail of a three-dimensional musculo-ligamentous-skeletal system is described, which shows high muscle loads are consistent with the common clinical observation of muscle strain often produced by load handling.

A Biomechanical Model of the Human Spinal System

A biomechanical model of the spine system consisting of the spinal column (vertebrae, discs, ligaments, muscles directly and indirectly acting on the spinal Column, as well as the rib-cage, abdomen and part of the pelvis is presented.

The Ligamento‐Muscular Stabilizing System of the Spine

To determine if mechanoreceptors in the human spine can reflexively recruit muscle force to stabilize the lumbar spine, and to demonstrate, in the feline model, that such ligamento‐muscular synergy is elicited by mechanical deformation of theLumbar supraspinous ligament, it is shown that spastic muscle activity and possibly pain can be caused by ligament overloading.

A Universal Model of the Lumbar Back Muscles in the Upright Position

A model of the lumbar back muscles was constructed and it was revealed that all the back muscles exert large compression forces on all segments, which have a bearing on the appreciation of the effects on the back muslces of surgery and physiotherapy.

Stabilizing Function of Trunk Flexor‐Extensor Muscles Around a Neutral Spine Posture

It was demonstrated that antagonistic trunk flexor‐extensor muscle coactivation was present around the neutral spine posture in healthy individuals and explained entirely on the basis of the need for the neuromuscular system to provide the mechanical stability to the lumbar spine.