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Suture anchors are routinely used for shoulder labral reconstruction procedures. There is paucity of literature on how the response of bone to suture anchor should be measured following labral reconstruction. A new system, based on the use of magnetic resonance (MR) imaging, has been developed by Professor Bhatti and his trainee which grades bone signal changes around suture anchors using a five-point scale. This system, however, has not yet been tested on a clinical dataset. We tested the reliability of the grading system in an independent dataset.
This validation study demonstrates that the grading system is feasible and has generally moderate reliability. And, although results could be improved if a training document is added at the beginning of the study, this grading system should undergo further validation testing for use in clinical trials.