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      • Slump Test
      • Sphinx Test
      • Spine Rotators & Multifidus Test
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      • Standing Forward Flexion Test
      • Straight Leg Raise Test
      • Supine to Long Sit Test
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      • Active Compression Test
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      • Biceps Load Test II
      • Drop Arm Sign
      • External Rotation Lag Sign
      • Hawkins-Kennedy Impingement Sign
      • Horizontal Adduction Test
      • Internal Rotation Lag Sign
      • Jobe Test
      • Ludington's Test
      • Neer Test
      • Painful Arc Sign
      • Pronated Load Test
      • Resisted Supination External Rotation Test
      • Speed's Test
      • Posterior Apprehension
      • Sulcus Sign
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        • Adson's Test
        • Costoclavicular Brace
        • Hyperabduction Test
        • Roos (EAST)
      • Yergason's Test
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      • Chair Sign
      • Cozen's Test
      • Elbow Extension Test
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      • Ulnar Nerve Compression Test
      • Valgus Stress Test
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Thoracic Spine Mobility Assessment

5/21/2018

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In physical therapy school, the thoracic spine is often glossed over during the musculoskeletal courses. This may be due to the low incidence and prevalence of thoracic spine pain. The incidence of thoracic spine pain is only ~15-19% across the population. This is relatively low ​compared to lumbar spine pain, which has an 80% prevalence in adults. Additionally, physical therapy schools may choose to emphasize the non-musculoskeletal diagnosis that are important in the thoracic spine. Since many organs are housed in the thoracic cavity, hours are spent on non-musculoskeletal diagnosis. For example, if a patient presents with thoracic spine pain, it is more important to rule-out a myocardial infarction than a thoracic facet restriction. Regardless, there is a gap in student's knowledge regarding thoracic spine anatomy and biomechanics, mobility assessment, and differential diagnosis.
 
In this post, I will be reviewing the active range of motion and segmental mobility assessments for the thoracic spine. Additionally, I have added some clinical pearls for thoracic anatomy and biomechanics! 

Anatomy and Biomechanics Review

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The thoracic spine is comprised of 12 vertebrae. These vertebrae have similar characteristics to cervical and lumbar spine- a vertebral body, pedicles directed posterior from the body, lamina that connect to form a spinous process, vertebral facets, and costal demi-facets (Neumann, 2010). The superior and inferior facets of the vertebrae are oriented ~60 degrees from the horizontal plane and ~20 degrees from the frontal plane.
Since the thoracic spine connects cervical to lumbar, the junctional regions are important considerations as well. When transitioning from one region, there is no immediate change between cervical to thoracic vertebrae and thoracic to lumbar vertebrae. The superior thoracic vertebrae bare qualities similar to the cervical spine and the inferior thoracic vertebrae resemble the lumbar spine. This may explain why stiffness is often noted in these regions.

Learn how to Mobilize the CTJ
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Additionally, the thoracic spine houses the sympathetic nervous system. The sympathetic nerve trunk lies anterior to the costotransverse joints. Clinically, this may help explain unusual symptoms  that can be reproduced by neural tension tests such as the SLUMP TEST or Straight Leg Raise Test. Sympathetic innervations of the head arises from T1-T2, the upper extremities from T3-T7, the lower extremities from T8-T12 and the trunk from T1-T12.
​

As Dr. Chris Fox wrote in a previous post on thoracic spine anatomy, "In the thoracic spine, T4-9 is known as the critical zone because the vertebral canal is narrowest here; it also has reduced blood supply (Egan et al, 2011). T6 is a tension point; here motion of the spinal core versus canal converge in different directions." Improving the neural mobility in the thoracic spine can help improve movement and decrease pain in the joints above and below. 

Active Motion ​Assessment

Below are descriptions and pictures of thoracic spine active range of motion assessment. While it is impossible to isolate the thoracic spine, certain pelvis and lumbar spine positions can give the therapist a better idea of thoracic motion. In addition to the pictures below, I also assess thoracic flexion, extension, and rotation range of motion in quadruped. 
Thoracic Flexion
  • ​Instruct the patient to flex forward starting with the cervical spine in a cranio-caudal segmental pattern.
  • Look for areas that look like they are skipped or remain flat.
  • The arms are passed through the knees and the patient is reaching downward.
Expect 20-45 degrees of thoracic flexion
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Thoracic Extension
  • Instruct the patient to either long sit or sit with the feet on a step in order to flex the hip and lumbar spine, which will cause a counter-curve lock in the low back.
  • Look for areas that are skipped, appear not to move, or remain relatively flat
  • Extension typically begins around T5.
Expect 25-45 degrees of thoracic extension
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Thoracic Side Bending
  • Instruct the patient to assume a long sitting position and inter-lock her hands behind the head. Have one leg elevated to counter lock the pelvis
  • The patient will then sidebend leading with the elbow on the ipsilateral side
Expect 20-40 degrees of thoracic flexion
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Thoracic Rotation
  • ​Instruct the patient to long sit or sit with the hips flexed in order to counter-curve lock the lumbar spine. 
  • The patient will rotate starting in the direction of the ipsilateral shoulder.
Normative values have not been established due to difficulty isolating thoracic rotation
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Segmental Mobility Assessment

Segmental mobility is used to determine how much motion is available at each segment. In theory, this assessment is more specific than an active range of motion assessment as it tries to isolate each segment of the spine. While segmental mobility has been shown to have weak inter-rater reliability, practicing the assessment technique can be useful for improving tissue palpation and improving one's hands-on skills. Additionally, this assessment can help guide interventions when clustered with a patient's other symptoms.    
This video was taken from our Insider Access library of videos.
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Citations:
1. ​Briggs AM, Smith AJ, Straker LM, Bragge P. Thoracic spine pain in the general population: Prevalence, incidence and associated factors in children, adolescents and adults. A systematic review. 
BMC Musculoskeletal Disorders. 2009;10:77. doi:10.1186/1471-2474-10-77.
2. Ganesan S, Acharya AS, Chauhan R, Acharya S. Prevalence and Risk Factors for Low Back Pain in 1,355 Young Adults: A Cross-Sectional Study. 
Asian Spine Journal. 2017;11(4):610-617. doi:10.4184/asj.2017.11.4.610.
3. Neumann, Donald. Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation. 2nd edition. St. Louis, MO: Mosby Elsevier, 2010. 322-323. Print.
4. Egan W, Burns S, Flynn T, and Ojha H. The Thoracic Spine and Rib Cage: Physical Therapy Patient Management Utilizing Current Evidence. 
Current Concepts of Orthopaedic Physical Therapy, 3rd Ed. La Crosse, WI. 2011.

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  • Home
  • About Us
  • TSPT Academy
  • Resources
    • Newsletter
    • Orthopedic Blog
    • Featured Articles
    • Research Articles
    • Residency Corner
  • Special Tests
    • Cervical Spine >
      • Alar Ligament Test
      • Bakody's Sign
      • Cervical Distraction Test
      • Cervical Rotation Lateral Flexion Test
      • Craniocervical Flexion Test (CCFT)
      • Deep Neck Flexor Endurance Test
      • Posterior-Anterior Segmental Mobility
      • Segmental Mobility
      • Sharp-Purser Test
      • Spurling's Maneuver
      • Transverse Ligament Test
      • ULNT - Median
      • ULNT - Radial
      • ULNT - Ulnar
      • Vertebral Artery Test
    • Thoracic Spine >
      • Adam's Forward Bend Test
      • Passive Neck Flexion Test
      • Thoracic Compression Test
      • Thoracic Distraction Test
      • Thoracic Foraminal Closure Test
    • Lumbar Spine/Sacroiliac Joint >
      • Active Sit-Up Test
      • Alternate Gillet Test
      • Crossed Straight Leg Raise Test
      • Extensor Endurance Test
      • FABER Test
      • Fortin's Sign
      • Gaenslen Test
      • Gillet Test
      • Gower's Sign
      • Lumbar Quadrant Test
      • POSH Test
      • Posteroanterior Mobility
      • Prone Knee Bend Test
      • Prone Instability Test
      • Resisted Abduction Test
      • Sacral Clearing Test
      • Seated Forward Flexion Test
      • SIJ Compression/Distraction Test
      • Slump Test
      • Sphinx Test
      • Spine Rotators & Multifidus Test
      • Squish Test
      • Standing Forward Flexion Test
      • Straight Leg Raise Test
      • Supine to Long Sit Test
    • Shoulder >
      • Active Compression Test
      • Anterior Apprehension
      • Biceps Load Test II
      • Drop Arm Sign
      • External Rotation Lag Sign
      • Hawkins-Kennedy Impingement Sign
      • Horizontal Adduction Test
      • Internal Rotation Lag Sign
      • Jobe Test
      • Ludington's Test
      • Neer Test
      • Painful Arc Sign
      • Pronated Load Test
      • Resisted Supination External Rotation Test
      • Speed's Test
      • Posterior Apprehension
      • Sulcus Sign
      • Thoracic Outlet Tests >
        • Adson's Test
        • Costoclavicular Brace
        • Hyperabduction Test
        • Roos (EAST)
      • Yergason's Test
    • Elbow >
      • Biceps Squeeze Test
      • Chair Sign
      • Cozen's Test
      • Elbow Extension Test
      • Medial Epicondylalgia Test
      • Mill's Test
      • Moving Valgus Stress Test
      • Push-up Sign
      • Ulnar Nerve Compression Test
      • Valgus Stress Test
      • Varus Stress Test
    • Wrist/Hand >
      • Allen's Test
      • Carpal Compression Test
      • Finkelstein Test
      • Phalen's Test
      • Reverse Phalen's Test
    • Hip >
      • Craig's Test
      • Dial Test
      • FABER Test
      • FAIR Test
      • Fitzgerald's Test
      • Hip Quadrant Test
      • Hop Test
      • Labral Anterior Impingement Test
      • Labral Posterior Impingement Test
      • Long-Axis Femoral Distraction Test
      • Noble Compression Test
      • Percussion Test
      • Sign of the Buttock
      • Trendelenburg Test
    • Knee >
      • Anterior Drawer Test
      • Dial Test (Tibial Rotation Test)
      • Joint Line Tenderness
      • Lachman Test
      • McMurray Test
      • Noble Compression Test
      • Pivot-Shift Test
      • Posterior Drawer Test
      • Posterior Sag Sign
      • Quad Active Test
      • Thessaly Test
      • Valgus Stress Test
      • Varus Stress Test
    • Foot/Ankle >
      • Anterior Drawer
      • Calf Squeeze Test
      • External Rotation Test
      • Fracture Screening Tests
      • Impingement Sign
      • Navicular Drop Test
      • Squeeze Test
      • Talar Tilt
      • Tarsal Tunnel Syndrome Test
      • Test for Interdigital Neuroma
      • Windlass Test