The article titled "Acquiring the Skills to Perform Point of Care Ultrasound of the Infant Hip Through Simulation" in the Journal of the Pediatric Orthopaedic Society of North America discusses the importance of using ultrasound for the diagnosis and treatment of Developmental Dysplasia of the Hip (DDH) in infants. 

Here are five key points from the article:

Prevalence and Diagnosis of DDH: DDH is the most common anatomical pathology in newborns, with its incidence varying between 4.4% and 51.8% depending on various factors. Hip stability testing using Barlow and Ortolani maneuvers is a standard part of newborn physical exams. If hip instability is detected, a hip ultrasound is performed as it is the gold standard for DDH diagnosis​​.
Role of Ultrasound: Ultrasound is crucial not just for diagnosis, but also for treatment and monitoring of DDH. It allows dynamic evaluation of the hip, offering greater sensitivity for hip dislocation diagnosis compared to standard radiographs and clinical screening​​.
Simulation Training for Ultrasound Examination: A simulation model for teaching point-of-care ultrasound examination of an infant's hip was developed and incorporated into the postgraduate orthopaedic surgery residency program. This method, involving training with a phantom baby, has been successful in teaching over 150 physicians in 8 years​​.
Training Procedure and Evaluation: The Graf method is used for simulation training. Trainees initially practice on a low-fidelity “phantom baby” and progress to live patients once proficient. Ultrasound evaluations categorize hips into four types - normal, dysplastic, unstable, or dislocated. Trainee skills are assessed based on their ability to follow a standardized checklist and measurements​​.
Evolution of Teaching Methods and Future Prospects: The teaching method has evolved from lecture-based to practical training, initially on neonates and then using the phantom baby for better anatomical understanding. Future enhancements may include incorporating VR with haptics to simulate pathology​​.
Regarding the purchase of related products, Rothband offers the "Infant Hip Sonography Training Phantom." This product is unique in the market, designed for hip sonography on a full-body manikin of a 6-week-old infant. It includes bilateral hips for examination and aids in anatomical understanding. The set comes with an ultrasound infant phantom, talcum powder, a storage case, and an instruction manual. The training phantom, developed under the supervision of Univ. Prof., h.c., Reinhard Graf, M.D., and the Japanese Society of Orthopedic Ultrasonics, is made from polyurethane elastomer and is latex-free​

the full study can be seen here: https://www.jposna.org/index.php/jposna/article/view/467