AR Navigation Assists in Bone Tumor Resection

From VR Medicine News–A new study sought to determine whether AR-based navigation assistance can improve bone tumor resection using a pig femur model system. Out of 133 pig femurs, 82 were used with AR-assistance (164 resections) and 41 with the conventional method (82 resections). The study found a lower mean error (1.71 mm vs 2.64 mm) and improved surgical margin (90.2% vs 70.7%) with the use of AR-assistance compared to the conventional method. The authors assert that this novel AR navigation system is accurate and cost-effective. Whether the AR-assistance improves outcomes has not been determined.

H. S. Cho, Y. K. Park, S. Gupta, C. Yoon, I. Han, H-S. Kim, H. Choi, J. Hong. Augmented reality in bone tumour resection: An experimental study. Bone Joint Res 2017;6:137-143.

VR Shows Promise in Cerebral Palsy

From VR Medicine News–Researchers in India conducted a review of studies of VR rehabilitation and its efficacy in the sensory and functional motor skills of children and adolescents with cerebral palsy. The review, published in Physiotherapy, included 31 studies and 369 participants. The authors found “moderate evidence that virtual reality rehabilitation is a promising intervention to improve balance and motor skills in children and adolescents with cerebral palsy.

Ravi DK, Kumar N, Singhi P. Effectiveness of virtual reality rehabilitation for children and adolescents with cerebral palsy: an updated evidence-based systematic review. Physiotherapy. 2016 Sep 27. pii: S0031-9406(16)30064-5. doi: 10.1016/

VR and Benchtop Arthroscopy Simulator Show Different Training Outcomes

British researchers have compared a virtual reality (VR) arthroscopy simulator with a benchtop (BT) arthroscopy simulator and found that both simulators delivered improvements in arthroscopic skills. However, BT training led to skills that readily transferred to the VR simulator, whereas skills acquired after VR training did not transfer as readily to the BT simulator. “Despite trainees receiving automated metric feedback from the VR simulator, the results suggest a greater gain in psychomotor skills for BT training,” the authors conclude. “Further work is required to determine if this finding persists in the operating room.”

Middleton RM, Alvand A, Garfjeld Roberts P, Hargrove C, Kirby G, Rees JL. Simulation-Based Training Platforms for Arthroscopy: A Randomized Comparison of Virtual Reality Learning to Benchtop Learning. Arthroscopy. 2017 Jan 7. pii: S0749-8063(16)30893-3. doi:10.1016/j.arthro.2016.10.021.