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Right posterolateral view of the lumbar spine.
ANTERIOR SUPERIOR ILIAC SPINE MANUAL
Manual Therapy for the Low Back and Pelvis – A Clinical Orthopedic Approach (2015).įigure 3. The lumbar spine’s curve is described as lordotic, with its concavity facing posteriorly and its convexity facing anteriorly. Courtesy Joseph E. The spinal cord travels through the central canal formed by the vertebral foramina (singular: foramen), and the lumbar spinal nerves travel through the intervertebral foramina between adjacent vertebrae (Fig. Other prominent lumbar bony landmarks are the lamina, laminar groove, mammillary process, transverse process, facets, pars interarticularis, and vertebral body. If, on the other hand, the client’s lumbar curve is excessive, it is termed hyperlordotic the spinous processes of a hyperlordotic lumbar spine are more difficult to palpate. However, some clients’ lumbar curves are decreased or even straight a decreased or absent lordotic curve is termed hypolordotic, making palpation of the spinous processes much easier. Because the lumbar curve is lordotic, the spinous processes are recessed and not as superficial for palpation as are the spinous processes of the thoracic spine. How easy or difficult it is to palpate the lumbar spinous processes depends largely on the degree of the client’s lordotic curve. However, these terms are also used to refer to the healthy and normal curve of the low back and neck.) All lumbar vertebrae have a spinous process that extends posteriorly and can usually be palpated.
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(The terms lordotic and lordosis are often used to denote an excessive and unhealthy lordotic curve. Manual Therapy for the Low Back and Pelvis – A Clinical Orthopedic Approach (2015).įrom a lateral view, the healthy lumbar spine can be seen to have a lordotic curve (lordosis), which is defined as being concave posteriorly and convex anteriorly (Fig. The pelvis is composed of the two pelvic bones and the sacrum and coccyx. The lumbar spine is composed of five vertebrae, named L1 to L5 from superior to inferior. Posterior view of the lumbar spine and pelvis. The pelvis is composed of the two pelvic bones and the sacrum and coccyx (the pelvic bones are also known as the coxal, innominate, or hip bones) (Fig. The low back is defined by the lumbar spine, and the pelvis is defined by the bones of the pelvic girdle. For more complete coverage of the structure and function of the low back and pelvis, Kinesiology – The Skeletal System and Muscle Function, 3 rd ed. Having a solid foundation in the structure and function of a region allows you to understand and better apply treatment techniques to that region. This blog post article is an overview of the skeletal structure (bones) of the low back (lumbar spine) and pelvis. Introduction to the bones of the lumbar spine and pelvis