Bohwa Choi, Presenter: Nothing to Disclose

Na Ra Kim MD, Abstract Co-Author: Nothing to Disclose

Sung Gyu Moon MD, Abstract Co-Author: Nothing to Disclose

Jin-Young Park MD, Abstract Co-Author: Nothing to Disclose

To assess the presence of a superior labral cleft on postoperative CT arthrography after superior labral anterior to posterior lesion (SLAP) repair and to evaluate whether such superior labral clefts are correlated to functional and clinical outcome.

Forty six patients (37 men, nine women; mean age, 35 years) were included and underwent CT arthrography of the shoulder after arthroscopic SLAP repair. Two musculoskeletal radiologists reviewed CT arthrographic images for the presence and size of a superior labral cleft defined as a detectable contrast material-filled focal discontinuity of the labrum within anchor fixation sites of the glenoid on an oblique coronal image. The extent, direction of curvature, and marginal irregularity of a superior labral cleft were assessed on axial, oblique coronal and oblique sagittal CT arthrographic images. The functional and clinical outcome was evaluated by using the American Shoulder and Elbow Surgeons (ASES) scoring. The mean time interval between surgery and postoperative CT arthrography was 16.9 months (range, 7 to 63 months).

The superior labral cleft was found in 52% (24 of 46). The mean width and depth of the superior labral cleft were 2.0mm ± 1.1 and 2.8mm ± 0.9. When present, the superior labral cleft extended posterior to the biceps anchor in 62.5% (15 of 24), was curved medially in 91.7% (22 of 24), and had a smooth margin 79.2% (19 of 24). No significant association was seen between the presence, width and depth of a superior labral cleft, and ASES score (P = .569, .633 and .067, respectively). The superior labral clefts were seen more commonly in long time interval between surgery and postoperative CT arthrography (P = .018).

Shallow superior labral clefts can be frequently seen after arthroscopic SLAP repair at long-term follow-up. The presence of superior labral clefts do not necessarily correlate with functional and clinical outcome after SLAP repair.

Shallow superior labral clefts can be frequently seen after SLAP repair. The presence of superior labral clefts do not necessarily correlate with functional and clinical outcome after SLAP repair.

Choi, B, Kim, N, Moon, S, Park, J, Postoperative CT Arthrographic Features of Superior Labral Anterior-to-Posterior Lesions: Correlation with Functional and Clinical Outcome.  Radiological Society of North America 2013 Scientific Assembly and Annual Meeting, December 1 - December 6, 2013 ,Chicago IL. http://archive.rsna.org/2013/13025477.html