Lumbar puncture is an important diagnostic tool for the doctor, especially in an emergency. However, at times the procedure may be unsuccessful and fail to yield desired results. Sometimes, LP can be traumatic, which is difficult to interpret. Both situations can delay the diagnosis, which can be life-threatening at times, and increase costs for the patient; they are also a cause for patient dissatisfaction. And, in this age of litigation, a disgruntled patient is a cause for concern.
A failed LP may be due to poor positioning of the patient or incorrect technique. A patient with spinal abnormalities such as kyphosis, scoliosis, calcification of ligaments or an anxious patient or an obese patient can make the procedure difficult. Knowledge of anatomy is important for a safe and successful attempt. Static bedside ultrasound has been used to identify the site and the course (maximum depth…
