PMC4772418_01
Antero-posterior radiographs of right shoulder (a). Three-dimension (b), Axial (c), Oblique coronal (d), and oblique sagittal (e) Views of computed tomography of the right shoulder. Antero-posterior view of arthrography (f) and oblique coronal view of enhanced magnetic resonance imaging (g) of the right shoulder. Arrows indicate a small bone fragment at the superior-posterior glenoid rim. Arrowheads showing large bonefragments under the bilateral coracoid processes
IJSS-10-48-g001.jpg
PMC4772418_01_IJSS-10-48-g001.jpg
F1
Plain radiographs confirmed severe osteoarthritis of both glenohumeral joints and calcified tumors under the coracoid process [Figure 1a]. Computed tomography showed a small bony tumor at the superior-posterior glenoid rim [Figure 1b-e]. Arthrography revealed a small defect of contrast media at superior-posterior area of the joint space, but no multiple loose bodies or subacromial leakage [Figure 1f]. Magnetic resonance imaging revealed joint effusion [Figure 1g].
Arthroscopic views showed the osteochondral fragment was connected with the glenoid labrum at the 11-o'clock position of the right shoulder. Switching rod inserted from the anterior portal was located under the osteochondral fragment (a), and the fragment was moved upward (b) and downward (c) to confi rm the continuity with the labrum (arrowheads). After removal of the osteochondral fragment, an irregular rim of the glenoid labrum was seen (arrows) (d). Postoperative antero-posterior X-ray showed the evidence of removal of the bone fragments (e). A yellow dotted line: osteochondral fragment
IJSS-10-48-g002.jpg
PMC4772418_01_IJSS-10-48-g002.jpg
F2
Arthroscopic findings confirmed intra-articular bone apposition on the glenoid labrum at 11-o'clock position [Figure 2a-d]. The patient underwent arthroscopic removal of the bone fragment on the glenoid labrum, partial synovectomy, and resection of the tumor under the coracoid process via an open anterior approach [Figure 2e].