Table 1

Diagnostic accuracy of diagnostic imaging tests for pathologies including or relevant to an acetabular labral tear

PathologyDiagnostic testCriterion referenceAccuracy/SN/SP (95% CI)
Intra-articular pathologyIntra-articular injectionSurgery90% accuracy5
ALT

  1. CT

  2. MRI

  3. MRA

  4. US

  5. MDCT

Surgery 

  1. 97(NR)/87(NR)136 92(NR)/100(NR)137

  2. Pooled analysis: 66 (59–73)/79(67 to 91) (0.5 to 3 T)138

  3. Pooled analysis: 87 (84–90)/64(54 to 74) (0.5 to 3 T)138 60(NR)/91(NR)79

  4. 82(NR)/75(NR)79 94 (NR)/0 (NR)78 (MRA criterion reference)

  5. 90 (NR)/100 (NR)

Articular cartilage lesion

  1. MRA

  2. CT

  3. MDCT

Surgery

  1. 63(NR)/33(NR)139 58 to 81/69 to 100140 50 to 79(NR)/77 to 84(NR)141 49 to 67(NR)/76 to 92(NR)142 97(82 to 99)/84(60 to 97)20

  2. 66(NR)/40(NR)13967 to 79(NR)/82 to 94(NR)142 88(NR)/82(NR)136

  3. 88 (NR)/100 (NR) (acetabular cartilage loss)143 94 (NR)/100 (NR) (femoral cartilage loss)143

Impingement

  1. MRA (α angle)

  2. CT scan

  3. MRI

  4. Radiograph (ischial spine projection assessing for retroversion)

Surgery 

  1. 39(NR)/70(NR)(cut-off 55°)144

  2. 92 to 97/87 to 100136 137

  3. Pooled analysis: 66/79138

  4. 91/98145

 

  • ALT, acetabular labral tear; MRA, MR arthrography; MDCT, modified CT; NR, not reported; US, ultrasonography.