Are 3D-Printed Anatomic Haptic Adolescent Idiopathic Scoliosis Spine Models Better Resident Training Tools When...

Area of Science:

• Orthopaedic surgery
• Medical simulation
• Spinal deformity correction

Background:

• Spinal deformity surgery demands intricate 3D pathoanatomy understanding.
• Limited opportunities exist for hands-on practice with 3D pathoanatomy and surgical techniques.
• 3D printers can generate accurate models of adolescent idiopathic scoliosis (AIS) spines.

Purpose of the Study:

• To evaluate the efficacy of 3D-printed anatomic haptic AIS spine models in resident training.
• To compare the accuracy of pedicle screw placement using 3D models versus conventional training tools.

Main Methods:

• A 3D model of a Lenke 1 AIS spine (T1-L5) was created from CT data.
• Thirty-one orthopaedic trainees were randomized into three groups: cadaver, sawbones, and 3D model.
• Pedicle screw insertion accuracy was assessed post-training, with breaches and resident satisfaction recorded.

Main Results:

• The sawbones group exhibited the highest number of pedicle breaches.
• Trainees using the 3D model demonstrated significantly improved accuracy in post-test sessions.
• 84% of residents preferred the 3D model, rating its recommendation at 4.7/5.

Conclusions:

• 3D-printed anatomic haptic AIS spine models are effective resident training tools.
• These models enhance pedicle screw placement accuracy for adolescent idiopathic scoliosis surgery.
• 3D models offer a superior training experience compared to traditional sawbones.