Podcast
Questions and Answers
According to Fryette's First Law, if the spine is in a neutral position, what motion occurs with left side-bending?
According to Fryette's First Law, if the spine is in a neutral position, what motion occurs with left side-bending?
In Fryette's Second Law, concerning non-neutral mechanics, if the spine is in a state of flexion, what motion pattern is observed with right side-bending?
In Fryette's Second Law, concerning non-neutral mechanics, if the spine is in a state of flexion, what motion pattern is observed with right side-bending?
Fryette's Third Law primarily emphasizes the relationship between motion in one plane and motion in other planes. What is the main implication of this law for spinal manipulation?
Fryette's Third Law primarily emphasizes the relationship between motion in one plane and motion in other planes. What is the main implication of this law for spinal manipulation?
Which bony landmark is typically located at the level of the L4 spinous process?
Which bony landmark is typically located at the level of the L4 spinous process?
Signup and view all the answers
When palpating soft tissues in the lumbopelvic region, which of the following muscle groups would be considered hip extensors and rotators?
When palpating soft tissues in the lumbopelvic region, which of the following muscle groups would be considered hip extensors and rotators?
Signup and view all the answers
Which ligament primarily limits excessive lumbar extension?
Which ligament primarily limits excessive lumbar extension?
Signup and view all the answers
The orientation of lumbar facet joints primarily limits motion in which plane?
The orientation of lumbar facet joints primarily limits motion in which plane?
Signup and view all the answers
Which structure of the intervertebral disc is in direct contact with the adjacent vertebral body?
Which structure of the intervertebral disc is in direct contact with the adjacent vertebral body?
Signup and view all the answers
Innominate outflare is characterized by which positional change of the anterior superior iliac spine (ASIS) and posterior superior iliac spine (PSIS) on the same side?
Innominate outflare is characterized by which positional change of the anterior superior iliac spine (ASIS) and posterior superior iliac spine (PSIS) on the same side?
Signup and view all the answers
During sacral nutation, the sacral base moves in which direction relative to the iliac bones?
During sacral nutation, the sacral base moves in which direction relative to the iliac bones?
Signup and view all the answers
According to the presented arthrokinematics, lumbar extension is associated with which facet joint movement?
According to the presented arthrokinematics, lumbar extension is associated with which facet joint movement?
Signup and view all the answers
If the right lumbar facet joints are 'opened', which combination of movements is MOST likely to have occurred?
If the right lumbar facet joints are 'opened', which combination of movements is MOST likely to have occurred?
Signup and view all the answers
Which osteokinematic motion of the lumbar spine is MOST limited by the orientation of the facet joints?
Which osteokinematic motion of the lumbar spine is MOST limited by the orientation of the facet joints?
Signup and view all the answers
An anterior rotation of the innominate bone on the right would result in which positional change of the right PSIS relative to the left PSIS when palpated in standing?
An anterior rotation of the innominate bone on the right would result in which positional change of the right PSIS relative to the left PSIS when palpated in standing?
Signup and view all the answers
In sacral counternutation, the articular surface of the sacrum glides in which direction relative to the innominate bones?
In sacral counternutation, the articular surface of the sacrum glides in which direction relative to the innominate bones?
Signup and view all the answers
Study Notes
Lumbopelvic Anatomy and Kinematics
- Objectives: Understand the normal anatomy and osteokinematics/arthrokinematics of the lumbopelvic region. Become familiar with Fryette's laws of coupled motion. Demonstrate ability to palpate selected structures.
Lumbopelvic Anatomy
- Lumbar Spine: Contains 5 lumbar vertebrae
- Ligaments: Anterior longitudinal ligament, posterior longitudinal ligament, ligamentum flavum, interspinal ligament
- Facet Joints: Orientation varies significantly (Half-moon, Flat, Asymmetric Half-moon/Flat)
Lumbopelvic Kinematics (Motion)
-
Osteokinematics:
- Flexion: 40-60 degrees.
- Extension: 20-35 degrees.
- Lateral Flexion: 15-20 degrees.
- Rotation: 3-18 degrees.
- Rotation Limited by: Facet joint orientation
- Nutation vs Counternutation: Types of sacral movement
Innominate Dysfunctions
- Inflare/outflare: Positions of the innominate bone
- Anterior/Posterior Rotation: Rotations of the innominate
- Upslip/downslip: Upward/downward movement of the innominate
Sacral Torsions
- Axes: Left oblique, middle transverse, and right oblique axes
Arthrokinematics
- Facet Joint Movement: Slides without rolling
- Intervertebral Joint Movement: Pivoting and gliding
Fryette's Laws
- Law #1 (Neutral Spine): Sidebending and rotation occur in opposite directions
- Law #2 (Non-Neutral Spine): Sidebending and rotation occur in the same direction
- Law #3: Motion in one direction decreases motion in other directions
Palpation
- Bony Landmarks: Spinous process, top of iliac crest, PSIS, sacral base, S2 spinous process, inferior lateral angle, ischial tuberosity, ASIS, AIIS, pubic symphysis
- Soft Tissues: Erector spinae, hip abductors, hip extensors/rotators, hip flexors, hip adductors
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your knowledge on the anatomy and kinematics of the lumbopelvic region. This quiz covers key concepts such as lumbar vertebrae, ligament structures, and variations in facet joint orientation. Additionally, explore principles like Fryette's laws and the mechanics of innominate dysfunctions.
