2018年7月2日 · Anatomy. A lumbar puncture is an invasive test designed to access the subarachnoid space in the lower spinal canal. The brain and spinal cord are covered by three layers of meninges- the dura, arachnoid, and pia mater (Figure 1).

Relevant Anatomy for Lumbar Puncture The desired insertion point of the needle is the L3-L4 or L4-L5 interspace; thus, the needle is inserted below the level of the spinal cord. The spinous process of L4 lies along an imaginary line between the top of the posterior superior iliac crests.

2023年7月24日 · Identify the anatomical structures, indications, and contraindications of lumbar puncture. Describe the equipment, personnel, preparation, and technique in regards to lumbar puncture. Review the potential complications and clinical significance of lumbar puncture.

Positioning for lumbar puncture (LP) A lumbar puncture can be performed in two positions: Lateral recumbent. Patient on his or her side with head propped up on a single pillow to keep spine straight; Knees & torso flexed to optimise interlaminar foramen of vertebrae; Ask or use assistant to draw patient’s legs up to their chest

2024年5月4日 · During a lumbar puncture, a needle is inserted into the space between two lumbar bones, called vertebrae. Then a sample of cerebrospinal fluid is removed. This is the fluid that surrounds the brain and spinal cord to protect them from injury.

2023年7月10日 · A lumbar puncture, or spinal tap, is a procedure used to collect cerebrospinal fluid (CSF) for diagnosis and treatment purposes. By accessing the subarachnoid space in the lower back, healthcare professionals can gather valuable information about central nervous system conditions.

2019年5月20日 · Lumbar spine anatomy. The lumbar spinous processes are rectangular, or tombstone-shaped. The L2–3 and L3–4 midline interspinous spaces are the widest, and lumbar puncture can be safely performed at these levels. The foramina for the two approaches to lumbar puncture are shown: midline (red arrow) and paramedian (blue arrow).

Lumbar Puncture (Spinal Tap) - Etiology, pathophysiology, symptoms, signs, diagnosis & prognosis from the Merck Manuals - Medical Professional Version.

Let us review a little anatomy so that you can understand where to do your lumbar puncture. At birth, the inferior end of the spinal cord is opposite the body of the third lumbar vertebrae (L3). Distal to this point is the cauda equina and its nerve roots.

This review attempts to aid understanding of the anatomical framework, pitfalls, and complications of lumbar puncture. It includes special reference to 3D relationships, functional and imaging anatomy, and normal variation. Lumbar puncture is carried out …