2011 Is the Internal Rotation Lag Sign a Sensitive Test for Detecting Hip Abductor Tendon Ruptures after Total Hip Arthroplasty Open Access

Description: Results We evaluated this test in 20 patients clinically and by magnetic resonance imaging (MRI). All patients demonstrated a positive internal rotation lag sign. Twelve of them lag of internal rotation and evidence of anterior abductor tendon rupture on MRI, 8 with lag of internal rotation and no evidence of abductor tendon rupture.
Conclusion The new clinical diagnostic sign presented here may improve the diagnosis of abductor tendon rupture in the future.
Is the Internal Rotation Lag Sign a Sensitive Test for Detecting Hip Abductor Tendon Ruptures after Total Hip Arthroplasty? Ossendorf C, Bohnert L, Mamisch-Saupe N, Rittirsch D, Wanner GA, Simmen HP, Dora C, Werner CM.L. Patient Safety in Surgery 2011, 5:7 (full text)