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Prevalence and Location of Acetabular Sublabral Sulci at Hip Arthroscopy with Retrospective MRI Review

Daniel Saddik1,2, John Troupis2,3, Phillip Tirman4, John O'Donnell5 and Robert Howells5

1 Department of Radiology, The Northern Hospital, 185 Cooper St., Epping, Victoria 3076, Australia.
2 Symbion Health Limited, Melbourne, Victoria, Australia.
3 Department of Radiology, The Epworth Hospital, Richmond, Victoria, Australia.
4 California Pacific Medical Center, San Francisco, CA.
5 Orthopedic Clinic and Mercy Health, East Melbourne, Victoria, Australia.


Figure 1
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  		Fig. 1A —49-year-old woman with anterosuperior labral sulcus that was preoperatively misinterpreted as labral tear. Oblique axial T1-weighted image obtained after intraarticular injection of gadolinium shows partial detachment of anterosuperior labrum from adjacent cartilage (arrow).

 

Figure 2
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  		Fig. 1B —49-year-old woman with anterosuperior labral sulcus that was preoperatively misinterpreted as labral tear. Coronal T2-weighted image obtained after intraarticular injection of gadolinium shows partial detachment of anterosuperior labrum from adjacent cartilage (arrow).

 

Figure 3
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  		Fig. 1C —49-year-old woman with anterosuperior labral sulcus that was preoperatively misinterpreted as labral tear. Arthroscopy image corresponding to A and B shows sharply defined labrum (L) with adjacent sulcus (arrow) between labrum and cartilage (A).

 

Figure 4
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  		Fig. 2 —28-year-old man with posteroinferior labral sulcus that was not commented on preoperatively. Oblique axial T1-weighted image obtained after intraarticular injection of gadolinium shows partial detachment of posteroinferior labrum from adjacent cartilage (arrow).

 

Figure 5
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  		Fig. 3 —40-year-old man with posterosuperior labral sulcus that was not commented on preoperatively. Coronal proton density-weighted image reveals partial detachment of posterosuperior labrum from adjacent cartilage (arrow).

 

Figure 6
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  		Fig. 4A —25-year-old man with anterosuperior labral tear. Coronal T2 fat-saturated image shows partial detachment of anterosuperior labrum from adjacent cartilage (short arrow). Note subtle marrow edema of adjacent acetabulum (long arrow).

 

Figure 7
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  		Fig. 4B —25-year-old man with anterosuperior labral tear. Arthroscopy image corresponding to A shows torn detached labrum (arrow) from acetabular cartilage (A).

 

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