Arthroscopic Removal of a Polyethylene Glenoid Component in Total Shoulder Arthroplasty  Arne J. Venjakob, M.D., Frank Reichwein, M.D., Wolfgang Nebelung, M.D.  Arthroscopy Techniques  Volume 4, Issue 2, Pages e149-e152 (April 2015) DOI: 10.1016/j.eats.2014.12.001 Copyright © 2015 Arthroscopy Association of North America Terms and Conditions

Fig 1 (A) Anteroposterior and (B) axial radiographs of the right shoulder 6 months after stemless total shoulder arthroplasty (Eclipse stemless humeral prosthesis with cemented, polyethylene keeled glenoid). Both planes show radiographic lucent lines of 1.3 to 2 mm, indicating loosening of the glenoid component. Arthroscopy Techniques 2015 4, e149-e152DOI: (10.1016/j.eats.2014.12.001) Copyright © 2015 Arthroscopy Association of North America Terms and Conditions

Fig 2 Arthroscopic view from posterior indicating massive synovitis (a), as well as the anterior portal (b) from the posterior perspective. The humeral prosthesis is marked with an asterisk. Arthroscopy Techniques 2015 4, e149-e152DOI: (10.1016/j.eats.2014.12.001) Copyright © 2015 Arthroscopy Association of North America Terms and Conditions

Fig 3 Arthroscopic view displaying the arthroscopic grasper (c) taking an intraoperative culture. The humeral prosthesis is marked with an asterisk. Arthroscopy Techniques 2015 4, e149-e152DOI: (10.1016/j.eats.2014.12.001) Copyright © 2015 Arthroscopy Association of North America Terms and Conditions

Fig 4 Arthroscopic view showing the loosened polyethylene component (pound sign), bone cement, and examining hook (d) used to expose the glenoid component. Arthroscopy Techniques 2015 4, e149-e152DOI: (10.1016/j.eats.2014.12.001) Copyright © 2015 Arthroscopy Association of North America Terms and Conditions

Fig 5 Arthroscopic view showing the electrocautery device (e) used to release scar tissue at the level of the glenoid-bone interface. The glenoid component is marked with a pound sign, and the humeral prosthesis is marked with an asterisk. Arthroscopy Techniques 2015 4, e149-e152DOI: (10.1016/j.eats.2014.12.001) Copyright © 2015 Arthroscopy Association of North America Terms and Conditions

Fig 6 Arthroscopic view showing mobilization of the glenoid component. By use of a rasp (f), the glenoid (pound sign) is lifted from its bony undersurface. Arthroscopy Techniques 2015 4, e149-e152DOI: (10.1016/j.eats.2014.12.001) Copyright © 2015 Arthroscopy Association of North America Terms and Conditions

Fig 7 Arthroscopic view featuring extraction of bone cement with the arthroscopic grasper (c). The glenoid component is marked with a pound sign, and the humeral prosthesis is marked with an asterisk. Arthroscopy Techniques 2015 4, e149-e152DOI: (10.1016/j.eats.2014.12.001) Copyright © 2015 Arthroscopy Association of North America Terms and Conditions

Fig 8 Arthroscopic view displaying the mobilized polyethylene inlay exposing the keel of the glenoid component (pound signs). Arthroscopy Techniques 2015 4, e149-e152DOI: (10.1016/j.eats.2014.12.001) Copyright © 2015 Arthroscopy Association of North America Terms and Conditions

Fig 9 Postoperative photograph showing explanted polyethylene component (pound sign), bone cement (plus sign), and Bircher forceps (g). Arthroscopy Techniques 2015 4, e149-e152DOI: (10.1016/j.eats.2014.12.001) Copyright © 2015 Arthroscopy Association of North America Terms and Conditions