Laminectomies of the cervical vertebrae at or just above the CTJ may cause instability in the region. See Scoliosis: Symptoms, Treatment and Surgery Scoliosis is the sideways curvature of the spine and may occur at the CTJ due to injury, congenital birth anomaly, or unknown causes (idiopathic). The CTJ may be affected by bone infections such as osteomyelitis or lung infections such as tuberculosis. The CTJ may also be affected by lesions of prostrate or breast cancer that spread to this region in advanced stages of the disease. Thyroid and esophageal (food pipe) tumors may also extend into the CTJ, damaging the vertebrae. The most common tumor that extends between the rib and the vertebra at the CTJ is the Pancoast tumor from the lung(s). Tumors affecting the CTJ are usually the advanced (metastatic) type. This fracture occurs due to repetitive and forceful pull of the upper back muscles on these spinous processes. 3, 4, 5Ī fracture of the spinous process of C7 and/or T1 is called clay-shoveler’s fracture. Sometimes, ligament injuries may also occur. These fractures usually include burst fractures (severely compressed or crushed vertebrae), facet joint fractures, and dislocation of the C7 and/or T1 vertebrae. An estimated 2% to 9% of cervical spine fractures occur at the CTJ. 3 A few conditions that may affect the CTJ are: While the diagnosed problems at the C7-T1 level are less common, 2 research suggests that CTJ injuries may be missed during due to difficulties in visualizing this region on plain X-Ray films. Spinal Motion Segment: C7-T1 (Cervicothoracic Junction) Animation.In This Article:Īll About the C7-T1 Spinal Segment (Cervicothoracic Junction) The vertebral bodies and arches protect the spinal cord within the spinal canal. These muscles commonly include those involved in bending the wrist and the fingers. The C8 myotome is a group of muscles controlled by the C8 nerve. #SPINE ALIGN IMAGES TO ROOT SKIN#This dermatome can vary, but it typically includes areas of skin over parts of the neck, shoulder, forearm, hand, and the little finger.
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