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Novel Pin Array Guide Boosts Accuracy of Glenoid Component Positioning in Total Shoulder Arthroplasty

Achieving accurate glenoid component placement during total shoulder arthroplasty is one of the most challenging aspects of the procedure. In most cases, there is substantial arthritis-related bone deformity with limited exposure of the glenoid surface intra-operatively, making it difficult to visualize. April D. Armstrong, M.D., chief, shoulder and elbow surgery, Bone and Joint Institute, says, “When the glenoid component isn’t accurately placed, it tends to loosen and eventually requires a revision procedure.” Using traditional placement techniques in one investigation, errors in version and inclination of the central drill line, on average, were approximately 9 degrees and version error correlated with the degree of arthritic glenoid version.¹ Continue reading

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