Lumbar Spine Pathologies Flashcards
Name the Lumbar Vertebrae Anatomical Landmarks
Vertebral Body
Neural Canal
Pedicle - between vertebral body and transverse process
Lamina - between transverse process and spinous process
Spinous process
Transverse Process
Mammillary Process - posterior and lateral aspect of the transverse process to increase surface area for muscle attachment
Superior and Inferior articular facets
What anatomical features are specific to the Lx?
Spinous process - projects horizontally backwards and have a thick posterior border
Vertebral canal is triangular,
Larger than thoracic but smaller than cervical
Spinal cord becomes the cauda equina at L1&2
Transverse processes are short and project laterally
What are the Lx Red Flags?
Constant progressive night pain
Saddle anaesthesia
Bowel or bladder incontinence or retention
Visceral disease
History of Cancer
Unexplained weight loss
Systemic illness or infection
Fever
Prolonged steroid use
IV drug abuse
Advanced age
History of trauma
Deformity
Bilateral radiculopathy
Problems with sexual function
What are the Cauda Equina Symptoms?
Todd 2017
Red Flags Backpain Bilateral radiculopathy Sphincteric problems Perineal sensory changes Urinary disturbance
White flags
Saddle anaesthesia
Bladder and bowel innocence or retention
What are the functions of the Lumbar Spine?
Bear weight of the body
Large intervertebral discs for shock absorption
Lumbar vertebrae are larger to absorb stress of lifting and carrying
What is specific about the Lumbar Facet Joints?
Due to direction limit movement
Superior face inwards and inferior face outwards
What are the 2 different joints in the Lx?
Joints of the vertebral bodies to the intervertebral discs - Cartilaginous joints that have limited movement.
Facet joints - synovial joints.
What movements do the facet joint facilitate?
Flexion, extension, side flexion.
Limits rotation
How would someone with a facet joint strain/dysfunction present in the subjective?
Revel's Criteria Age >65 Pain relief by lying down Flexion eased pain Sitting, hyperextension and extension with rotation increased pain
Absence of centralisation Absence of trauma Lack of radicular features Pain tends to stay above the knee Localised unilateral pain
What does increased pain on coughing or sneeze
Disc pathology
What type of pathology does trauma or centralisation suggest?
Disc pathology
What is centralisation?
Patient has limb pain, they then complete the same movement repetitively and the pain goes from the limb to the spine
What are the objective findings of a facet joint problem?
Reduced ROM
Doing specific movements aggravated pain
Increased stiffness by unilateral pressure over the facet joint
Unilateral Muscle Spasm
Pain eased in flexion
Pain in extension, lateral flexion or rotation to the ipsilateral side
Extension combined with rotation most aggravating movement
What ligaments are in the Lx?”
Anterior longitudinal ligament - runs along the anterior part of the vertebral bodies
Posterior longitudinal ligament - runs along the posterior part of the vertebral body
Ligamentum flavum - runs between the lamina and adjacent vertebrae
Supraspinous ligament - connects tips of the spinous processes
Interspinous ligaments - between spinous processes
Intertransverse ligaments - between transverse processes
Can you differentiate between the Lx ligaments?
No
What are the anatomical components of the intervertebral discs?
Nucleus pulposus - centrally
Annulus fibrosus - surrounds the nucleus pulposus
Cartilage end plates - between the disc and vertebral body
What is the structure of the nucleus pulposus?
Its soft and contains high amounts of water
Posteriorly in the Lx and centrally in the Cx and Tx
What is the structure of the annulus fibrosus?
Series of annular bands (like a tree trunk) that surround the nucleus
Fibrocartilogenous collagen bundles
In Lx denser anteriorly and weakest posteriolaterally
In which direction does a disc prolapse in the Lx?
Posteriolaterally
Which positions cause the most pressure on the disk?
Sitting forward
What happens to the discs with ageing?
Loss of disc height
More collagen content in the annulus fibrosus
Loss of water in the nucleus pulposus
How does disc herniation occur due to age?
Annulus fibrosus weakens which leads to cracks and herniation of the nuculeus pulposus