Thoracic Flashcards
How many articulations does EACH vertebrae have? What are they called?
- Eight
- 4 Facet Joints (zygapophyseal joints)
- 2 Costovertebral joints
- 2 Costotransverse joints
Thoracic Motion: Flexion/Extension
Flexion:
- Inferior articular process slides on the inferior articular process by sliding up/forward and open
- Tensions the interspinous and supraspinous ligaments
Extension:
- Inferior articular process slides on the inferior articular process by sliding down/back and closing
- Tension placed on the anterior longitudional ligament
Thoracic Motion: Rotation
- 35-45 degrees relative to the pelvis
Thoracic Motion: Side bending
- 45 degrees; Not much motion due to the rib cage
- SB to the right:
– R Inferior slide down on the R superior
– L inferior slides up on the L superior
Muscles of the Thoracic Region
Deep: Transversospinal mm (Rotator brevic, rotator longus, Multifidus, Semispinalsis thoracis)
Superficial: Erector Spinae (Iliocostalis thoracis, Longissimus thoracis, spinalis thoracis)
More Superficial: Latissimus Dorsi and Lower Trapezius
Most superficial: Rhomboids
Effects of kyphosis on muscle and joints
- Increased kyphosis creates a greater external moment arm for thoracic flexion torque
- This results in greater activity of thoracic extensors (no change in internal moment arm) to maintain upright position
- Results in increased work and tone of muscles
Effects of kyphosis on rib expansion
- Increased kyphosis causes ribs rotate anteriorly and depress
- Leads to increased difficulty for costal expansion and thus deep breathing
Innervation of Thoracic Spine
- Facet innervated by the medial branch of the dorsal ramus.
- Costotransverse joints and intercostal mm innervated by the Anterior branch of ventral rami
- Note: Proximity to the paravertebral sympathetic ganglia and the sympathetic chain to the thoracic spine articulations (RSD)
Thoracic Facet Joint Referral Patterns
You are very much less likely to have ____ related symptoms in the thoracic than compared to cervical or lumbar
dermatome
Thoracic Evaluation: Red and Yellow Falgs for Thoracic Pain
Referral Pain from Visceral structures:
* Cardiac conditions (upper thoracic/shoulder)
* Stomach/esophagus (mid thoracic and inf. scapula)
* Liver/Gall bladder/PANCREAS (especially right side) (mid thoracic and inf. scapula)
* Kidney (lower thoracic, lower parts of ribs)
* Appendix (lower thoracic)
Vertebral Fractures
Herpes Zoster
Start to think this if they can’t pinpoint a spot.
Medical Screening - Purpose
Must determine if there is a “mechanical nature to the pain”
Medical Screening Questions
Do you have any pain associated with foods you eat?
Change in stool appearance?
Unexplained weight loss?
Night pain?
Hx of trauma?
Chest pain?
SOB?
Pain associated with increased activity?
Able to find comfortable position?
Hx of Osteoperosis?
Hx of Steroid use?
Hx of Cancer?
BOLDED NEED TO BE ASKED.
Last 3 referencing more for Fracture
Medical Screening Palpation
Abdominal Quadrant Screen
Referal Pain
The pancreas refers as…
Lower thoracic pain and thoracolumbar region