IDEA Series: 3D-printed pediatric lumbar puncture trainer

Pediatric lumbar puncture trainers are less available than adult trainers; most are the newborn size and quite expensive. Due to age-based practice patterns for fever diagnostic testing, most pediatric lumbar punctures are performed on young infants, and residents have fewer opportunities to perform lumbar punctures on older children.1 Adult lumbar puncture trainers have been created using a 3D-printed spine and ballistics gel, which allows for ultrasound guidance.2 No previous model has been described for pediatric lumbar puncture.

Fiona is a 6 year old female who presents to your emergency department after falling onto her left hand while racing on the playground. X-ray of the left upper extremity reveals a distal radius fracture with minimal displacement and angulation. You plan to place her arm in a splint and arrange for close orthopedic follow-up. The only problem: Fiona is in a lot of pain, especially with any manipulation of her arm, and Dad is worried that she will not be able to tolerate having a splint placed. You consider reaching for an intranasal medication to help Fiona feel more comfortable and to place the splint in a quick, efficient manner.


Emergency Medicine (EM) physicians care for anyone, with anything, at any time. This includes pediatric patients as well as adults. For those without advanced pediatric training, “sick kids” can be quite intimidating. Rashes in the pediatric population are often benign, but in rare cases they portend significant illness. Rashes are also frequent chief complaints; In 2015, there were 1,452,300 pediatric ED visits for “skin and subcutaneous tissue disorders” [1]. We sought to improve the teaching of pediatric rashes in our residency curriculum.