Effect of an Anterior Glenoid Defect on Anterior Shoulder Stability

Abstract

The results suggest that reconstruction of the glenoid concavity might be necessary in shoulders with an anterior glenoid defect of at least 20% of the glenoid length.

Cost Analysis of Failed Shoulder Stabilization

“…23 Similarly, Yamamoto et al found that the stability ratio significantly decreased after creating a 6 mm defect, which was equivalent to 20% of the glenoid length. 36 These results suggest that reconstruction of the glenoid concavity might be necessary in shoulders with an anterior glenoid defect of at least 20% of the glenoid length. 36 Kaar et al found that glenohumeral stability decreases at a 5/8 radius defect in external rotation and abduction.…”

“…36 These results suggest that reconstruction of the glenoid concavity might be necessary in shoulders with an anterior glenoid defect of at least 20% of the glenoid length. 36 Kaar et al found that glenohumeral stability decreases at a 5/8 radius defect in external rotation and abduction. 10 At 7/8 radius, there was a further decrease in stability in the neutral position with external rotation.…”

The Bristow and Latarjet Procedures: Why These Techniques Should Not Be Considered Synonymous

“…The technique for simulating glenoid defects described by Yamamoto et al was also utilized 17 . The maximum anteroposterior glenoid width was measured with digital calipers, after which the defect was created by cutting with a microsagittal saw along a line perpendicular to the anteroposterior direction for 15% or 30% of the glenoid width.…”

Three-dimensional measurement and parameters of the glenohumeral joint in a normal cadaver: guidance in the treatment of shoulder instability

“…Recent studies have shown that the bony stability assessed by the stability ratio decreased significantly after producing a bony defect larger than 26% of the glenoid width (20% of the glenoid length) [6]. In addition, shoulder stability after Bankart repair was decreased significantly, with a bony defect larger than 25% of the glenoid width (19% of the glenoid length) [7].…”