Thoracic Outlet Syndrome Anatomy

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Questions and Answers

Which specific muscle is targeted when laterally flexing and extending the head?

  • Anterior scalene (correct)
  • Levator scapulae
  • Pectoralis major
  • Trapezius

What type of training is recommended for cervical and thoracic extensors?

  • Resistance training (correct)
  • Balance training
  • Aerobic training
  • Flexibility training

Which of the following is NOT listed as a component of conservative management?

  • Stretching of pectoralis muscles
  • Postural education
  • Activity modifications
  • Stretching of quadriceps muscles (correct)

What is the purpose of postural education/training in conservative management?

<p>To correct and maintain proper posture (D)</p> Signup and view all the answers

Which method is used to stretch the anterior scalene muscles?

<p>Lateral flexion and extension of the head (D)</p> Signup and view all the answers

Which structure is located immediately superior to the first rib in the thoracic outlet?

<p>Clavicle bone (B)</p> Signup and view all the answers

What is the primary muscle involved in the thoracic outlet region?

<p>Subclavius muscle (A)</p> Signup and view all the answers

Which vascular structure is the most anterior in the thoracic outlet region?

<p>Subclavian vein (B)</p> Signup and view all the answers

Which structure passes directly posterior to the clavicle bone in the thoracic outlet?

<p>Subclavian artery (B)</p> Signup and view all the answers

Which of the following structures is NOT likely to be compressed in Thoracic Outlet Syndrome?

<p>First rib (A)</p> Signup and view all the answers

What anatomical structure is directly involved in thoracic outlet syndrome?

<p>Subclavian artery (B)</p> Signup and view all the answers

Which muscle is commonly associated with contributing to thoracic outlet syndrome?

<p>Scalenes (B)</p> Signup and view all the answers

Thoracic outlet syndrome involves compression of which of the following structures?

<p>Subclavian artery and brachial plexus (D)</p> Signup and view all the answers

Which posture is a contributing factor to thoracic outlet syndrome?

<p>Impaired cervical posture (forward head) (C)</p> Signup and view all the answers

What anatomical anomaly is considered a contributing factor to thoracic outlet syndrome?

<p>Abnormal 1st rib anatomy (B)</p> Signup and view all the answers

Which structure is NOT part of the neurovascular bundle compressed in the shoulder?

<p>Axillary vein (B)</p> Signup and view all the answers

Which muscle is involved in the compression of the neurovascular bundle according to the diagram?

<p>Scalene muscles (A)</p> Signup and view all the answers

What clinical test is used to assess the presence of neurovascular compression in the shoulder?

<p>Roos test (A)</p> Signup and view all the answers

Which of the following symptoms is NOT typically associated with neurovascular compression in the affected limb?

<p>Swelling (D)</p> Signup and view all the answers

Impaired sensation and motor function due to neurovascular compression in the UE can lead to difficulty with which activity?

<p>Grasping (B)</p> Signup and view all the answers

Which condition is NOT a cause of spinal canal encroachment?

<p>Increased disc height (A)</p> Signup and view all the answers

What is a direct result of the narrowing of the spinal canal?

<p>Decreased space for the spinal cord (A)</p> Signup and view all the answers

Which of the following can occur due to localized trauma?

<p>Narrowing of the spinal canal (B)</p> Signup and view all the answers

Where can narrowing of the spinal canal occur?

<p>Anywhere in the spinal canal (D)</p> Signup and view all the answers

Which of the following is an example of pathologic encroachment?

<p>Tumors (C)</p> Signup and view all the answers

What anatomical feature is directly causing the spinal cord compression in cervical stenosis?

<p>Degenerative disc (D)</p> Signup and view all the answers

Aside from degenerative discs, what other structure is contributing to spinal cord compression in cervical stenosis?

<p>Bony spurs (C)</p> Signup and view all the answers

Which part of the spine is specifically affected in cervical stenosis?

<p>Cervical spine (D)</p> Signup and view all the answers

In cervical stenosis, what term describes the abnormal bony growths contributing to spinal cord compression?

<p>Osteophytes (A)</p> Signup and view all the answers

What might be a consequence if cervical stenosis is left untreated?

<p>Chronic pain and neurological deficits (B)</p> Signup and view all the answers

Which symptom alleviation is commonly reported in patients with spinal cord impairments?

<p>Forward flexion (B)</p> Signup and view all the answers

Which condition is NOT a commonly reported impairment in individuals with spinal cord issues?

<p>Enhanced trunk extension ROM (C)</p> Signup and view all the answers

What might patients with spinal cord impairment experience during extension movements?

<p>Intolerable pain (B)</p> Signup and view all the answers

Which of the following is a potential outcome if the spinal cord is affected?

<p>Difficulty with ADL’s, clumsiness, and impaired balance (A)</p> Signup and view all the answers

Which statement accurately describes a possible issue in the presence of spinal cord impairment?

<p>Forward flexion can help alleviate symptoms (B)</p> Signup and view all the answers

Which structure is specifically altered in both laminectomy and laminoplasty?

<p>Lamina (C)</p> Signup and view all the answers

What is the primary visual difference in the spine before and after a laminectomy as shown in the illustration?

<p>Presence of bone spurs (B)</p> Signup and view all the answers

In the 'After (view from behind)' image, what distinctive feature emphasizes the change post-surgery?

<p>Clear view of the spinal canal (B)</p> Signup and view all the answers

Which direction is the surgical removal or modification conducted during a laminectomy?

<p>Posterior (B)</p> Signup and view all the answers

Which spinal component remains untouched after the laminectomy procedure shown?

<p>Transverse processes (B)</p> Signup and view all the answers

Which surgical procedure involves the fusion of two spinal segments?

<p>Spinal fusion (A)</p> Signup and view all the answers

What is the main purpose of a laminectomy?

<p>To remove the lamina (D)</p> Signup and view all the answers

Which of the following procedures is specifically designed to remove a part of a damaged or herniated disc?

<p>Discectomy (A)</p> Signup and view all the answers

Which surgical procedure primarily aims to relieve pressure on the spinal cord or nerves?

<p>Decompressive surgery (D)</p> Signup and view all the answers

What distinguishes a spinal fusion procedure from a discectomy?

<p>Spinal fusion involves fusing two segments; discectomy removes part of a disc. (C)</p> Signup and view all the answers

Which component of conservative management involves exercises that emphasize spinal bending to reduce symptoms?

<p>Flexion biased therapeutic exercise (A)</p> Signup and view all the answers

What is a key benefit of postural education/training in conservative management?

<p>Improving patient self-awareness and habits to reduce strain (A)</p> Signup and view all the answers

Which conservative management technique primarily aims to alleviate symptoms by addressing underlying muscle imbalances and improving movement patterns?

<p>Postural education/training (B)</p> Signup and view all the answers

What is the main focus of patient education in conservative management?

<p>Teaching patients about their condition and how to manage it independently (D)</p> Signup and view all the answers

Which technique is depicted in the bottom image where a person is holding their chin to their chest?

<p>Flexion biased therapeutic exercise (D)</p> Signup and view all the answers

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Study Notes

Thoracic Outlet Syndrome

  • The thoracic outlet is a region where the subclavian artery, subclavian vein, and brachial plexus pass through.
  • Compression of these structures can occur inferior to the clavicle and superior to the 1st rib.
  • Contributing factors include:
    • Impaired cervical posture (forward head) and thoracic spine posture (kyphosis)
    • Tight scalenes
    • Shortened pec minor
    • Abnormal 1st rib anatomy

Conservative Management

  • Stretching focused on the anterior scalene by laterally flexing and extending the head
  • Stretching of pectoralis muscles
  • Resistance training of cervical and thoracic extensors
  • Postural education/training
  • Activity/work modifications

Clinical Presentation

  • Pain, numbness, tingling, weakness, skin and temperature changes in affected limb (ipsilateral side of neurovascular compression)
  • Impaired sensation and motor function of affected UE
  • Ex: impaired grasping, difficulty with movements
  • PT special tests: Roos, Adson, Upper Limb Tension Tests

Cervical Stenosis

  • Narrowing of spinal canal
  • Decreased space for spinal cord in canal
  • Can occur anywhere in the spinal canal
  • Encroachment of spinal canal due to:
    • Osteophyte formation
    • Loss of disc height and/or disc disease/pathology
    • Localized trauma
    • Pathologic encroachment (e.g., tumors, cysts)

Clinical Presentation

  • Depends on area of spinal cord affected and how much of spinal cord affected
  • May complain of pain, impaired motor function, impaired sensation in upper extremity
  • Can be asymptomatic and pain not primary complaint
  • Forward flexion tends to alleviate symptoms
  • Patients will not tolerate extension due to pain
  • Limited trunk extension ROM
  • If spinal cord affected: difficulty with ADL's, clumsiness of hands/lower limbs, impaired gait and balance

Medical Management

  • Surgical procedures:
    • Decompressive surgery
    • Spinal fusion: two spinal segments fused together
    • Laminectomy: removal of lamina
    • Discectomy: section of damaged or herniated disc is removed
  • Conservative management:
    • Pain management
    • Patient education
    • Postural education/training
    • Flexion biased therapeutic exercise
    • Stretching

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