Minimally invasive spine surgery (MISS) is a cuttingβedge field in neurosurgery and orthopedics, yet it demands complex skills and highβtech tools. A recent review examined how residency programs are teaching these techniques. Sixteen studies were selected and grouped into four training types: virtual simulation (AR/VR), physical models, hybrid lectureβsimulation courses, and mentored training.
Virtual simulators let trainees practice realistic scenarios without risking patients, while physical models provide tactile feedback. Hybrid programs blend theory with handsβon practice, and mentors guide residents step by step.
The findings show clear benefits: residents make fewer errors, shorten operation times, lower fluoroscopy exposure, and boost accuracy, procedural knowledge, and confidence.
These methods cover various MISS procedures, such as percutaneous pedicle screw placement, minimally invasive dural repair, TLIF, LLIF, and microβdiscectomy.
Overall, embedding simulations, models and mentorship into curricula appears to shrink the learning curve, producing safer and more skilled spine surgeons.
Virtual simulations employ 3βD environments generated by medical imaging software, often integrated with motion sensors to replicate instrument handling. Augmented reality (AR) overlays anatomical data onto physical models, enhancing spatial perception. Physical models, typically 3βD printed with polymer or silicone materials, mimic bone density and tissue consistency, allowing practice of drilling and implant insertion. Hybrid curricula include theoretical lessons on anatomy, biomechanics, and imaging principles, followed by handsβon sessions on simulators or cadavers. Mentors, usually senior surgeons, provide realβtime feedback based on quantitative metrics (time, trajectory error, radiation dose) and qualitative assessments (technique evaluation). Studies have shown that combining these methods reduces the learning curve by roughly 30β―% compared to traditional training, with significant gains in pedicle screw placement accuracy (average error <β―2β―mm) and a 40β―% reduction in fluoroscopy exposure. Moreover, residents' perceived selfβefficacy rises by 25β―% after immersive simulation sessions, facilitating a smoother transition to real operating rooms.
