Elastocuff™ Re-tear Risk Predictor

Rotator-cuff re-tear probability from pre-operative shear-wave elastography velocity

Pre-op SWE velocity

m/s
1.03.05.07.09.011.0
Logit: –
AUC: 0.84 (99% CI 0.71–0.98)
Sample: 114 patients
Re-tears: 10 / 114 (8.8%)

Predicted re-tear probability

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0%25%50%75%100%

Probability curve

Clinical stiffness bands (published cohort)

< 4 m/s
38% re-tear
6 of 16 cases
4 – 6 m/s
7% re-tear
4 of 56 cases (all with additional trauma)
> 6 m/s
0% re-tear
0 of 40 cases