The conventional magnetic resonance method may overestimate off-track Hill-Sachs lesions

Our results demonstrated that the conventional MR method overestimated an off-track lesion compared to the CT method. The difference in the measurement plane between CT method and MR method was likely to cause a difference between the 2 methods. On the other hand, our modified MR method used the same plane as the CT method, which enabled us to evaluate off-track lesions more accurately than the conventional MR method. The conventional MR method may overestimate off-track lesions. In contrast, the modified MR method is expected to achieve accuracy closer to that of the CT method, making it a potentially useful measurement technique.